Texas Instruments ADS1158EVM User manual

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ADS1158EVM, ADS1258EVM, ADS1158EVM-PDK, and ADS1258EVM-PDK
ADCPro is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.
User's Guide
SBAU126D–May 2007–Revised May 2016
ADS1158EVM, ADS1258EVM, ADS1158EVM-PDK, and
ADS1258EVM-PDK
Figure 1. ADS1258EVM (Left) and ADS1258EVM-PDK (Right)
This user's guide describes the characteristics, operation, and use of the ADS1158EVM and
ADS1258EVM, both separately and as part of the ADS1158EVM-PDK or ADS1258EVM-PDK. These
evaluation modules (EVMs) are evaluation board for the ADS1258 multi-channel, delta-sigma (ΔΣ),
analog-to-digital converter (ADC), and the ADS1158, a 16-bit version of the ADS1258. It allows
evaluation of all aspects of the ADS1158 or ADS1258 device. Complete circuit descriptions, schematic
diagrams, and bills of materials are included in this document.
The related documents listed in Table 1 are available through the Texas Instruments web site at
www.ti.com.
Table 1. EVM-Compatible Device Data Sheets
Device Literature Number Device Literature Number
ADS1158 SBAS429B TPS79225 SLVS337B
ADS1258 SBAS297D SN74AHCT1G04 SCLS319N
REF1004 SBVS002 SN74LVC1G07 SCES296V
DAC8571 SLAS373A TPS72325 SLVS346B
OPA301 SBOS271D SN74AVC2T45 SCES531J
SN74LVC1G126 SCES224N SN74AVC8T245 SCES517H
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Contents
1 EVM Overview ............................................................................................................... 3
2 Analog Interface.............................................................................................................. 4
3 Digital Interface .............................................................................................................. 5
4 Power Supplies .............................................................................................................. 7
5 Voltage Reference........................................................................................................... 8
6 Clock Source ................................................................................................................. 8
7 EVM Operation............................................................................................................... 9
8 ADS1258EVM-PDK Kit Operation ....................................................................................... 11
9 Evaluating with the ADCPro Software................................................................................... 26
10 Schematics and Layout.................................................................................................... 35
List of Figures
1 ADS1258EVM (Left) and ADS1258EVM-PDK (Right).................................................................. 1
2 J3 Pin Configuration......................................................................................................... 6
3 ADS1258EVM Default Jumper Locations............................................................................... 10
4 MMB0 Initial Setup......................................................................................................... 12
5 Connecting the ADS1258EVM to the MMB0 ........................................................................... 13
6 Connecting an AC Adapter ............................................................................................... 14
7 Laboratory Power-Supply Connection................................................................................... 15
8 NI-VISA Driver Installation ................................................................................................ 17
9 NI-VISA Driver Installation Question..................................................................................... 18
10 NI-VISA Driver Installing................................................................................................... 19
11 NI-VISA Driver Complete Installation.................................................................................... 20
12 NI-VISA Driver Verification Using Device Manager.................................................................... 20
13 ADCPro Software Start-up Display Window............................................................................ 21
14 ADS1258EVM-PDK Plug-In Display Window........................................................................... 22
15 Install New Driver Wizard Screen 1...................................................................................... 23
16 Install New Driver Wizard Screen 2...................................................................................... 23
17 Install New Driver Wizard Screen 3...................................................................................... 24
18 Install New Driver Wizard Screen 4...................................................................................... 24
19 Install New Driver Wizard Screen 5...................................................................................... 25
20 USBSytx Driver Verification Using Device Manager................................................................... 25
21 Mux Settings for Fixed Channel Mode .................................................................................. 27
22 Mux Settings for Auto Channel Mode ................................................................................... 28
23 Switch Delay Settings...................................................................................................... 29
24 External Chopping.......................................................................................................... 29
25 Chopping Settings.......................................................................................................... 30
26 Clock Settings .............................................................................................................. 31
27 GPIO Controls .............................................................................................................. 32
28 Power and Reference Settings........................................................................................... 33
29 Progress Bar While Collecting Data ..................................................................................... 34
List of Tables
1 EVM-Compatible Device Data Sheets .................................................................................... 1
2 J1—Analog Interface Pinout................................................................................................ 4
3 J2—Supplemental Analog Interface Pinout .............................................................................. 5
4 J6—Serial Interface Pins ................................................................................................... 6
5 J5 Configuration—Power-Supply Input ................................................................................... 7

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6 J4 Configuration—Power Options ......................................................................................... 7
7 Reference Selection......................................................................................................... 8
8 List of Switches............................................................................................................. 10
9 ADS1258EVM Bill of Materials .......................................................................................... 35
1 EVM Overview
1.1 Features
ADS1158EVM/ADS1258EVM Features:
• Contains all support circuitry needed for the ADS1158/ADS1258
• Electronically switchable power supply allows both bipolar and unipolar configuration
• Voltage reference options: external or onboard digital-to-analog (DAC)-controlled programmable
reference
• Clock options: ADS1158/ADS1258 built-in PLL-based oscillator or external clock signal
• GPIO access
• Compatible with the TI Modular EVM System
ADS1158EVM-PDK/ADS1258EVM-PDK Features:
• Easy-to-use evaluation software for Microsoft®Windows®
• Data collection to ASCII text files
• Built-in analysis tools including scope, FFT, and histogram displays
• Complete control of board settings
• Easily expandable with new analysis plug-in tools from Texas Instruments
For use with a computer, the ADS1158EVM-PDK or ADS1258EVM-PDK is available. This kit combines
the ADS1158EVM/ADS1258EVM board with the DSP-based MMB0 motherboard.
The MMB0 motherboard allows the ADS1158EVM/ADS1258EVM to be connected to the computer via an
available USB port. This manual shows how to use the MMB0 as part of the ADS1158EVM-
PDK/ADS1258EVM-PDK, but does not provide technical detail on the MMB0 itself.
ADCPro™ is a program for collecting, recording, and analyzing data from ADC evaluation boards. It is
based on a number of plug-in programs, so it can be expanded easily with new test and data collection
plug-ins. The ADS1158EVM-PDK/ADS1258EVM-PDK is controlled by a plug-in running in ADCPro. For
more information about ADCPro, see the ADCPro™ Analog-to-Digital Converter Evalutation Software
User's Guide (http://focus.ti.com/lit/ug/sbau128/sbau128.pdf), available for download from the TI web site.
This manual covers the operation of both the ADS1158EVM/ADS1258EVM and the ADS1158EVM-
PDK/ADS1258EVM-PDK. It does not describe the MMB0 motherboard in detail. Throughout this
document, the abbreviation EVM and the term evaluation module are synonymous with the
ADS1158EVM/ADS1258EVM. For clarity of reading, this manual will refer only to the ADS1258EVM or
ADS1258EVM-PDK, but operation of the EVM and kit for the ADS1158 is identical, unless otherwise
noted.

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1.2 Introduction
The ADS1258EVM is an evaluation module built to the TI Modular EVM System specification. It can be
connected to any Modular EVM System interface card.
The ADS1258EVM is available as a stand-alone printed circuit board (PCB) or as part of the
ADS1258EVM-PDK, which includes an MMB0 motherboard. As a stand-alone PCB, the ADS1258EVM is
useful for prototyping designs and firmware.
Note that the ADS1258EVM has no microprocessor and cannot run software. To connect it to a computer,
some type of interface is required.
2 Analog Interface
For maximum flexibility, the ADS1258EVM is designed for easy interfacing to multiple analog sources.
Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin, dual-
row, header/socket combination at J1. This header/socket provides access to the analog input pins of the
ADS1258, as shown in Table 2. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a
variety of mating connector options.
In addition to J1, the J2 header (Samtec part number TSW-108-07-L-D) provides additional analog inputs
to accommodate the large number of input channels available on the ADS1258. Most of the pins on J1
and J2 are directly connected, with no filtering or protection. Use appropriate caution when handling these
pins.
Table 2. J1—Analog Interface Pinout
PIN NUMBER SIGNAL DESCRIPTION
J1.1 A1 AIN1, ADS1258
J1.2 A0 AIN0, ADS1258
J1.3 A3 AIN3, ADS1258
J1.4 A2 AIN2, ADS1258
J1.5 A5 AIN5, ADS1258
J1.6 A4 AIN4, ADS1258
J1.7 A7 AIN7, ADS1258
J1.8 A6 AIN6, ADS1258
J1.10 J2.11 Connected to J2, pin 11
J1.18 EXTREFN External reference source input (– side of differential input)
J1.20 EXTREFP External reference source input (+ side of differential input)
J1.12–J1.16 (even) Unused
J1.15 Unused
J1.9–J19 (odd) AGND Analog ground connections (except J1.15)

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The AINCOM and multiplexer bypass pins are brought to J2, as shown in Table 3. AINCOM is connected
to pin 12 on J2. An additional connection is made between J2.11 and J1.10; as a result of this connection,
if J2.11 and J2.12 are shorted, and J1.9 and J1.10 are shorted, AINCOM is grounded; if only J2.11 and
J2.12 are shorted, AINCOM is available on the EVM analog connector.
The multiplexer bypass is available at J2.13–J2.14 (MUXOUP) and J2.15–J2.16 (MUXOUN). Shorting
these pairs of pins routes the multiplexer output back to the ADCINN and ADCINP pins through a
differential filter. Alternatively, a signal can be applied directly to ADCINN and ADCINP through the filter.
Table 3. J2—Supplemental Analog Interface Pinout
PIN NUMBER SIGNAL DESCRIPTION
J2.1–J2.2 GND Analog ground
J2.3 A8 AIN8, ADS1258
J2.4 A9 AIN9, ADS1258
J2.5 A10 AIN10, ADS1258
J2.6 A11 AIN11, ADS1258
J2.7 A12 AIN12, ADS1258
J2.8 A13 AIN13, ADS1258
J2.9 A14 AIN14, ADS1258
J2.10 A15 AIN15, ADS1258
J2.11 J1.10 Connected to J1, pin 10
J2.12 ACOM AINCOM, ADS1258
J2.13 ANP ADCINP, ADS1258
J2.14 MOP MUXOUP, ADS1258
J2.15 ANN ADCINN, ADS1258
J2.16 MON MUXOUN, ADS1258
3 Digital Interface
3.1 Serial Data Interface
The ADS1258EVM is designed to easily interface with multiple control platforms. Samtec part numbers
SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin, dual-row, header/socket
combination at J6. This header/socket provides access to the digital control and serial data pins of the
TSC. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector
options.
All logic levels on J6 are 3.3V CMOS, except for the I2C pins, which conform to 3.3V I2C rules. The
ADS1258 may run at different logic levels, as set using J4. All ADS1258 pins are therefore level-shifted.

1
3
5 7
9
11
2 4 6 8 10 12
G6
G7
G4 G0 G2
G5
G3
G1
J6 7-
CS ST
J6 1-
12
11
2
1
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Many pins on J6 have weak pull-up resistors. These resistors provide default settings for many of the
control pins. Many pins on J6 correspond directly to ADS1258 pins, as shown in Table 4. See the
ADS1258 data sheet for complete details on these pins.
Table 4. J6—Serial Interface Pins
PIN NUMBER PIN NAME SIGNAL NAME I/O TYPE PULL-UP FUNCTION
J6.1 CNTL CNTL In None Optional ADS1258 START pin
control; see text
J6.2 GPIO0 PDWN In High ADS1258 power-down pin
J6.3 CLKX SCLK In None ADS1258 SPI clock
J6.4 DGND DGND In/Out None Digital ground
J6.5 CLKR — — None Unused
J6.6 GPIO1 RST In High ADS1258 reset pin
J6.7 FSX CS In Low Optional ADS1258 chip-select
control; see text
J6.8 GPIO2 CLKSEL In High Clock select:
0 = internal / out, 1 = external
J6.9 FSR — — None Unused
J6.10 DGND DGND In/Out None Digital ground
J6.11 DX DIN In None ADS1258 SPI data in
J6.12 GPIO3 N/A In High Power-supply mode:
0 = bipolar, 1 = unipolar
J6.13 DR DOUT Out None ADS1258 SPI data out
J6.14 GPIO4 — — None Unused
J6.15 INT DRDY Out None ADS1258 data-ready output
J6.16 SCL SCL I2C N/A I2C clock
J6.17 TOUT CLK In None External clock input
J6.18 DGND DGND In/Out None Digital ground
J6.19 GPIO5 — — None Unused
J6.20 SDA SDA I2C N/A I2C data
3.2 GPIO
The GPIO connector, J3, carries the GPIO pins for the ADS1258. J3 is arranged so that GPIO0 and
GPIO1 can be used to control START and CS, respectively; see Figure 2 and Figure 5. The PDK firmware
controls START through GPIO0. CNTL(J6-1) and FSX(J6-7) are also brought to J3, so they can also be
used to control START and CS. Both FSX and CNTL are pulled down, so these pins can be used to keep
START and CS low if they are not to be used.
Figure 2. J3 Pin Configuration

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4 Power Supplies
J5 is the power-supply input connector, as shown in Table 5.
Table 5. J5 Configuration—Power-Supply Input
PIN NUMBER PIN NAME FUNCTION REQUIRED?
J5.1 +VA Not used No
J5.2 –VA Not used No
J5.3 +5VA +5V analog supply Always
J5.4 –5VA –5V analog supply Only in bipolar mode
J5.5 DGND Digital ground input Only if DGND is selected on J4
J5.6 AGND Analog ground input Only if AGND is selected on J4
J5.7 +1.8VD 1.8V digital supply Only if 1.8V is selected on J4
J5.8 VD1 Not used No
J5.9 +3.3VD 3.3V digital supply Always
J5.10 +5VD Not used No
4.1 Power Options
J4 is arranged as seven rows, each of which can be shorted, as shown in Table 6. For normal operation,
J4.1-2, J4.3-4, and J4.9-10 must be connected (directly or through an ammeter); either J4.5-6 or J4.7-8
must be connected, and either (or both) of J4.11-12 and J4.13-14 must be connected; otherwise, the
board will not function.
Table 6. J4 Configuration—Power Options
ROW NAME FUNCTION
1-2 ADC AVDD AVDD supply current measurement point for the ADC.
Must be connected for operation.
3-4 ADC AVSS AVSS supply current measurement point for the ADC.
Must be connected for operation.
5-6 1.8V select When shorted, DVDD is sourced from the 1.8V power-supply input pin.
Should not be connected at the same time as 7-8.
7-8 3.3V select When shorted, DVDD is sourced from the 3.3V power-supply input pin.
Should not be connected at the same time as 5-6.
9-10 ADC DVDD DVDD supply current measurement point for the ADC.
Must be connected for operation.
11-12 DGND Connects DGND to board ground.
13-14 AGND Connects AGND to board ground.

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5 Voltage Reference
The ADS1258EVM has a DAC-controlled voltage reference circuit. The DAC used is a TI DAC8571,
controlled through the I2C. The address is set to 1001100. The output of the DAC is multiplied by two,
giving a range of approximately 0V to 5V. The DAC circuit is designed for low drift, but is uncalibrated. For
absolute accuracy, measure the DAC output and adjust as needed. The DAC high resolution reduces the
need for mechanical trimming.
Because of the high capacitance load on the buffer amplifier, the DAC step must be limited. The code
must not be changed by more than one at a time. (The PDK firmware incorporates a stepper task that
limits the slew-rate of the DAC by software.) If the DAC step is too high, the circuit saturates at a certain
voltage. To reset the circuit, return the DAC output to 0V.
Switches S1 and S2 allow various combinations of the DAC, external supply pins, and the power supply to
be selected, as shown in Table 7.
Table 7. Reference Selection
POSITION S1 REFP S2 REFN
Left AVDD AVSS
Center DAC GND
Right EXTREFP (J1.20) EXTREFN (J1.18)
6 Clock Source
The ADS1258 can use either an internal PLL-based clock source or an externally supplied clock. The
ADS1258EVM supports either type of clock.
For PLL operation, the ADS1258EVM is supplied with a 32.768kHz crystal. This clock mode is selected by
pulling GPIO2 on J6 (pin 8) low. In this mode, the generated clock can be measured on TP1, if the proper
bit is set in the ADS1258. The clock does not interfere with TOUT.
For external operation, a clock signal must be supplied on TOUT on J6 (pin 17), and GPIO2 must be
driven high. The level-shifted clock can be measured at TP1.

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7 EVM Operation
The following sections provide information on the analog input, digital control, and general operating
conditions of the ADS1258EVM.
7.1 Analog Input
The analog input sources can be applied directly to J1 (top or bottom side) or through signal-conditioning
modules available for the the modular EVM system. Signals can be applied directly to J2 for the additional
available channels.
7.2 Digital Control
The digital control signals can be applied directly to J6 (top or bottom side). The modular ADS1258EVM
can also be connected directly to a DSP or microcontroller interface board, such as the 5-6KInterface or
HPA-MCUInterface boards available from Texas Instruments, or the MMB0 if purchased as part of the
ADS!258EVM-PDK. For a list of compatible interface and/or accessory boards for the EVM, the ADS1258,
or the ADS1158, see the relevant product folder on the TI web site (www.ti.com).
7.3 Power Supply
The ADS1258 device can operate in either unipolar or bipolar mode. The ADS1258EVM can therefore
function in one of two power-supply configurations, unipolar or bipolar.
• In unipolar mode, the ADS1258 device uses a 5V analog supply. No negative power supply is needed
in this mode. The PDK requires a +5V dc supply that can be derived from a wall-mount power adapter.
• In bipolar mode, the ADS1258 is powered from a ±2.5V dual supply. This configuration requires both
a +5V supply and a –5V supply.
The power-supply mode is selected using GPIO3 (pin 12) on J6 of the ADS1258EVM. If this pin is low, the
mode is bipolar; if high, the mode is unipolar. This pin is pulled high when nothing is connected.

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7.4 Default Jumper Settings and Switch Positions
Figure 3 shows the jumpers found on the EVM and the factory default conditions for each one.
Figure 3. ADS1258EVM Default Jumper Locations
The jumpers on J4 provide a convenient way to measure the current for any of the power-supply currents:
AVDD (analog +V power), DVDD (digital power), AVSS (analog –V power), or the ground connections
VGND and DGND. Simply remove the jumper for the appropriate power supply and use a current meter
between the jumper pins. The supply voltage for the digital supply (DVDD) can also be selected to be
either 1.8V or 3.3V; see Table 6.
Table 8 provides a list of switches found on the EVM and the factory default conditions for each one.
Table 8. List of Switches
SWITCH DEFAULT POSITION SWITCH DESCRIPTION
S1 Left REF positive
S2 Left REF negative

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8 ADS1258EVM-PDK Kit Operation
This section provides information on using the ADS1258EVM-PDK, including setup, program installation,
and program usage.
To prepare to evaluate the ADS1258 with the ADS1258EVM-PDK, complete the following steps:
Step 1. Install the ADCPro software (if not already installed).
Step 2. Install the ADS1258EVM-PDK EVM plug-in software.
Step 3. Set up the ADS1258EVM-PDK.
Step 4. Connect a proper power supply or ac adapter.
Step 5. Complete the NI-VISA USB driver installation process.
Step 6. Run the ADCPro software.
Step 7. Complete the Microsoft Windows USB driver installation process.
Each task is described in the subsequent sections of this document.
8.1 Installing the ADCPro Software
CAUTION
Do not connect the ADS1258EVM-PDK before installing the software on a
suitable PC. Failure to observe this caution may cause Microsoft Windows to
not recognize the ADS1258EVM-PDK.
The latest software download link is available from the TI website at http://www.ti.com/tool/ADS1158EVM-
PDK or http://www.ti.com/tool/ADS1258EVM-PDK. Refer to the ADCPro User's Guide (SBAU128) for
instructions on installing and using ADCPro.
To install the ADS1258EVM-PDK plug-in, run the file: ads1258evm-pdk-plug-in-1.0.0.exe (1.0.0 is the
version number, and increments with software version releases). Double-click the file to run it and follow
the instructions shown.
The software should now be installed, but the USB drivers may not yet have been loaded by the PC
operating system. This step will complete when the ADCPro software is executed; see Section 8.5,
Running the Software and Completing Driver Installation.

J13
POWER
SUPPLY
CONFIG
S4
BOOT MODE SWITCH
J12
WALL SUPPLY CONNECTION
CONNECT IF NEEDED.
SEE TEXT.
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8.2 Setting Up the ADS1258EVM-PDK
The ADS1258EVM-PDK contains both the ADS1258EVM and the MMB0 motherboard; however, the
devices are shipped unconnected. Follow these steps to set up the ADS1258EVM-PDK:
Step 1. Unpack the ADS1258EVM-PDK kit.
Step 2. Set the jumpers and switches on the MMB0 as shown in Figure 4:
• Set the Boot Mode switch to USB.
• Connect +5V and +5VA on jumper block J13 (if +5V is supplied from +5VA).
• Leave +5V and +VA disconnected on jumper block J13.
• If the PDK will be powered from an ac adapter, and used in unipolar mode, connect J12.
If the PDK will be powered through the terminal block or will be used in bipolar mode,
disconnect J12. (See Section 8.4 for details on connecting the power supply.)
Figure 4. MMB0 Initial Setup

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3. Plug the ADS1258EVM into the MMB0, as shown in Figure 5.
Figure 5. Connecting the ADS1258EVM to the MMB0
CAUTION
Do not misalign the pins when plugging the ADS1258EVM into the MMB0.
Check the pin alignment carefully before applying power to the PDK.
Step 3. Set the jumpers and switches on the ADS1258EVM as illustrated in Figure 3 (note that these
settings are the factory-configured settings for the EVM):
• Set jumper block J4 as illustrated in Figure 3.
• Set the reference source select switches S1 and S2 to the center position.
• Set up jumper block J3 as illustrated in Figure 3.
8.3 About the MMB0
The MMB0 is a Modular EVM System motherboard. It is designed around the TMS320VC5507, a DSP
from Texas Instruments that has an onboard USB interface. The MMB0 also has 16MB of SDRAM
installed.
The MMB0 is not sold as a DSP development board, and it is not available separately. TI cannot offer
support for the MMB0 except as part of an EVM kit. For schematics or other information about the MMB0,
contact Texas Instruments.

J13
POWER
SUPPLY
CONFIG
J12
WALL SUPPLY CONNECTION
J2
AC ADAPTER INPUT
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8.4 Connecting the Power Supply
The ADS1258EVM-PDK can be operated with a unipolar +5V supply or a bipolar ±5V supply.
If the ADS1258EVM-PDK is to be operated in unipolar mode only, either an ac adapter or a lab power
supply can be used. If the ADS1258EVM-PDK is to be operated in bipolar mode, a ±5V power supply
must be connected; an ac adapter cannot be used.
When the MMB0 DSP is powered properly, LED D2 glows green. The green light indicates that the 3.3V
supply for the MMB0 is operating properly. (It does not indicate that the EVM power supplies are
operating properly.)
8.4.1 Connecting an AC Adapter
An ac adapter can be connected to barrel jack J2 on the MMB0. J2 is located next to the USB connector.
When an ac adapter is used, the ADS1258EVM cannot be used in bipolar mode. Refer to the External
Wall-Adapter Power-Supply Requirements section.
Jumper J12 on the MMB0 connects a wall-mounted power supply to the board. J12 must be shorted to
use the wall-mount supply, as shown in Figure 6.
Figure 6. Connecting an AC Adapter
8.4.1.1 External Wall-Adapter Power-Supply Requirements
The external wall-adapter power-supply requirements are as follows:
• Output voltage: 6 VDC to 9 VDC
• Maximum output current: ≥500 mA
• Output connector: barrel plug (positive center), 2.0-mm I.D. × 5.5-mm O.D. (9-mm insertion depth)
NOTE: Use an external power supply that complies with applicable regional safety standards; for
example, UL, CSA, VDE, CCC, PSE, and so forth.

J13
POWER
SUPPLY
CONFIG
J14
POWER
INPUT
J12
WALL SUPPLY CONNECTION
GND
+5VDC
(OPTIONAL) 5VDC-
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8.4.2 Connecting a Laboratory Power Supply
A laboratory power supply can be connected through terminal block J14 on the MMB0, as shown in
Figure 7. Both unipolar and bipolar configurations are supported.
To use a unipolar lab power-supply configuration:
• Disconnect J12 on the MMB0.
• Connect a +5V dc supply to the +5VD terminal on J14.
• Connect ground of the dc supply to the GND terminal on J14.
For bipolar mode, also connect a –5V dc supply to the –5VA terminal on J14.
It is not necessary to connect +5V dc supply voltage to the +5VA terminal on J14 if the +5V/+5VA position
on J13 is shorted.
Figure 7. Laboratory Power-Supply Connection

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8.5 Running the Software and Completing Driver Installation
NOTE: The software is continually under development. These instructions and screen images are
current at the time of this writing, but may not exactly match future releases.
The program for evaluating the ADS1258EVM-PDK is called ADCPro. This program uses plug-ins to
communicate with the EVM. The ADS1258EVM-PDK plug-in is included in the ADS1258EVM-PDK
package.
The program currently runs only on Microsoft Windows platforms of Windows XP; Windows Vista is NOT
supported.
If this is the first time installing ADCPro and plug-ins, follow these procedures to run ADCPro and
complete the necessary driver installation. Make sure the ADCPro software and device plug-in software
are installed from the CD-ROM as described in Section 8.1,Installing the ADCPro Software.
8.5.1 NI-VISA USB Device Driver Installation
1. After the ADCPro software is installed, apply power to the PDK and connect the board to an available
PC USB port.
2. The computer should recognize new hardware and begin installing the drivers for the hardware.
Figure 8 through Figure 11 are provided for reference to show the installation steps.
• For the first screen, Figure 8, it is not necessary to search for the software; it has already been
installed to your PC.
• For the remaining steps, accept the default settings.

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Figure 8. NI-VISA Driver Installation

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Figure 9. NI-VISA Driver Installation Question

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Figure 10. NI-VISA Driver Installing

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Figure 11. NI-VISA Driver Complete Installation
This should complete the installation of the NI-VISA drivers. You can verify proper installation by opening
the Device Manager and locating the driver as shown in Figure 12.
Figure 12. NI-VISA Driver Verification Using Device Manager