Analog Devices MAX22005 User manual

Evaluates: MAX22005 MAX22005PMB#
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General Description
The MAX22005PMB# (peripheral module board) provides
a Pmod™-compatible hardware solution to evaluate the
MAX22005 Twelve-Channel Congurable Industrial Analog
Input. Refer to the MAX22005 IC data sheet for more
details on the operation of the IC and its register map.
The MAX22005PMB# is most easily evaluated by con-
guring four universal analog inputs with the Munich
GUI software through the USB2PMB2# adapter board.
Alternatively, any SPI-compatible microcontroller, adapter
board, or FPGA can be used along with a custom driver
to evaluate the board.
The PCB dimension is just 99mm long x 23mm wide, with
the width determined by the size of the terminal block.
Note the module provides a subset of the MAX22005
features. For greater exibility, refer to the MAX22005
Evaluation Kit.
Features
● Easy Evaluation of the MAX22005
● Configurable as 8 Single-Ended Analog Voltage
Inputs, 4 Single-Ended Analog Current Inputs, 4
Differential Analog Voltage Inputs, 4 Multifunctional
(Universal) Analog Inputs, or Combinations Thereof
● Analog Input Voltage Range: ±12.5V
● Analog Input Current Range: ±25mA
● ±1.5kV Input Surge Protection
● Works with the USB2PMB2# Adapter and Munich
GUI Software
●Fully Assembled and Tested
●Proven PCB Layout
● RoHS Compliant
EV Kit Contents
●MAX22005PMB#
319-100889; Rev 0; 3/22
Ordering Information appears at end of data sheet.
Pmod is a registered trademark of Digilent Inc.
MAX22005PMB# Photo

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MAX22005PMB# Evaluates: MAX22005
MAX22005PMB# EV Kit Files
FILE DESCRIPTION
Munich GUISetupV2.25.exe Munich GUI software for use with the USB2PMB2# adapter
PIN 1
PIN 2
PIN 3
12-PIN
PMOD
CONNECTOR
ANALOG INPUT
MAX22005
AI1
AI2
AI3
AI4 – AI6
HVDD
AVDD
HVSS
DVDD
+3 .3V = DV DD
SCLK
RDYB
SYNC
CSB
SDO
SDI
IN TB
R STB
MAX 8614 A
BOOST
CONVERTER
AI7 – AI9
AI10 – AI12
3
3
3
ONLY ONE TRIPLET SHOWN FOR CLARI TY
GPIO0
J2
J1
DVDD
+15V = HVDD
-15V = HVSS
4.7 5kΩ
4.7 5kΩ
4.7 5kΩ
49 .9Ω
MAX14757
(S W0)
30V
Block Diagram

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MAX22005PMB# Evaluates: MAX22005
Quick Start
Required Equipment
●MAX22005PMB#
●USB2PMB2# adapter board
●Micro-USB cable
● Windows 10 PC with a spare USB port
● Munich GUI v2.25 or higher
● Voltage and/or Current Source
Note: In the following section(s), software-related items
are identified by bolding. Text in bold refers to items
directly from the Munich GUI software. Text in bold and
underlined refers to items from the Windows operating
system.
Procedure
This quick start procedure assumes the use of the
USB2PMB2# adapter and Munich GUI software. For use
with other Pmod or SPI-compatible devices, refer to the
MAX22005 IC data sheet for register settings and instruc-
tions.
1) Visit www.maximintegrated.com to download the
latest version of the Munich GUI software, version
2.25 or later.
2) Save the software to a temporary folder. Double-click
the .exe le to run the installer. A message box Do
you want to allow the following program to make
changes to this computer? might appear. If so,
click Yes.
3) The installer includes the drivers for the hardware
and software. Follow the instructions on the installer,
and once complete, click Finish. The default location
of the software is in the program les directory.
4) The GUI requires voltages and currents to be mea-
sured at the J2 and J3 input connector Pins 1, 4, 7,
and 10. (See Figure 1 and Table 2 for the J2 and J3
connector pin naming convention in this document.)
In the GUI, these are called Channel 1 (CH1),
Channel 2 (CH2), Channel 3 (CH3), and Channel
4 (CH4), respectively. These are the multifunctional
“universal” analog inputs. The other pins on the J2
and J3 connectors should be grounded for accurate
results—ground Pins 2, 5, 8, and 11 to their adjacent
GND Pins 3, 6, 9, and 12 as shown in Figure 1. For
example:
Figure 1. Input Connectors J2 and J3—Input Pin Labels and
Grounding

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MAX22005PMB# Evaluates: MAX22005
5) Connect USB2PMB2# connector X2 to
MAX22005PMB# connector J1 as shown in Figure 2.
6) Connect the Micro-USB cable to the USB2PMB2#
USB connector X1. Connect the USB cable to the
PC USB port.
7) The MAX22005PMB# is powered by USB through
the USB2PMB2#. Conrm that the green DS1 LED
(power indicator) is on. The USB2PMB2# green SPI
LED should also be on. These are visible in Figure 2.
8) It may take Windows several minutes to install the
driver. Wait until Windows successfully installs the
driver and shows “Your device is ready to use” at
the lower right corner near System Icons.
9) In the Device menu, select Industrial Analog 
MAX22005PMB# – 4 Channel Universal Analog In.
10) Click the Scan Adapters button in the USB2PMB
Adapter box. A USB2PMB2# serial name such as
PMOD000003A should appear in the list (or auto-
matically get selected). Click Connect.
Figure 2. USB2PMB2# and MAX22005PMB# Connection
Figure 3. Choosing the MAX22005PMB# GUI in the Device Menu
Figure 4. Scanning for USB2PMB Adapters and Connecting

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MAX22005PMB# Evaluates: MAX22005
11) Voltages can be measured on the four input chan-
nels independently. This example measures all four at
once with the same voltage. Select all four Channels
in Measurement Conguration by checking each
box. In the same section, select the Physical Values
button. In the Results box on the right side, Voltage
should be selected (the button switch is on the left
side). See Figure 5.
12) Connect a voltage source from the CH1 (Pin 1), CH2
(Pin 4), CH3 (Pin 7), and CH4 (Pin 10) pins to GND.
Remember to connect Pin 2 to Pin 3 (GND), Pin 5 to
Pin 6 (GND), Pin 8 to Pin 9 (GND), and Pin 11 to Pin
12 (GND) for proper operation with the Munich GUI.
Set the voltage source to +10V and activate it.
13) In the Sample box, set the Sample Rate and Sam-
ple Count. Example values are shown in Figure 6.
Figure 5. Example Voltage Measurement Settings and Expected Results
Figure 6. Example Sample Settings

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MAX22005PMB# Evaluates: MAX22005
14) Press Sample Continuously. You should see volt-
age values in the Results box close to what is in
Figure 5. Press Stop Sampling.
15) The current measurements are performed one chan-
nel at a time. Disable and/or remove the voltage
source. Select only the Channel 1 box in the Mea-
surement Conguration. In Results, click the Volt-
age/Current button for Channel 1 so that it slides to
the right (colored blue). See Figure 7. Note that it is
possible to measure all four channels at once with
four di󰀨erent current sources.
16) Connect a current source between CH1 (Pin 1) and
the adjacent GND pin (Pin 3). Set the current source to
+20mA and activate it. Press Sample Continuously in
the Sample box. You should see a Channel 1 current
measurement result similar to that shown in Figure 7.
Press Stop Sampling.
17) Then, apply -20mA from the current source and
conrm that the current value in Results matches.
(Note: For higher accuracy in current mode, all
channels must be calibrated to accommodate the
real sense resistor values. The initial accuracy of the
sense resistors is 0.1%, which is much higher than
the target of 0.02% Total Unadjusted Error. Refer to
the MAX22005 data sheet for a description of the
calibration procedure.)
18) Repeat steps 15 through 17 for Channels 2, 3, and 4,
if desired.
Detailed Description of Hardware
The MAX22005 is a twelve-channel industrial-grade ana-
log input voltage mode device that can also be configured
as an analog input current mode device using an external
precision resistor per channel. It can also operate as a
multifunctional “universal” analog input using an external
precision resistor and a low-cost switch per channel. The
MAX22005 features an integrated 24-bit delta-sigma ADC
that is shared between all analog inputs. The MAX22005
measurements have a Total Unadjusted Error (TUE) of
0.02% Full Scale Range (FSR) at 25°C factory calibration
and a TUE of 0.05% FSR over ±50°C from 25°C factory
calibration.
The MAX22005PMB# hardware provides everything
needed to evaluate the MAX22005 using the Pmod inter-
face. An optional USB2PMB2# or USB2GPIO# adapter
can be used with the Munich GUI to provide the USB-to-
SPI interface to communicate with the MAX22005. The
MAX22005PMB# is configurable as 8 single-ended ana-
log voltage inputs, 4 single-ended analog current inputs,
4 differential analog voltage inputs, 4 multifunctional
(universal) analog inputs, or combinations thereof. Note
that these configurations are a subset of the total configu-
rations possible with the MAX22005 IC. For greater flex-
ibility and access to all of the MAX22005 features, refer to
the MAX22005 Evaluation Kit.
Figure 7. Example Current Measurement Settings and Expected Results

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MAX22005PMB# Evaluates: MAX22005
Pmod Connector
The 12-pin Pmod connector (J1) meets the Pmod Interface
Type 2A (expanded SPI) standard. Figure 8 details the J1
Pmod connections on the MAX22005PMB#.
Power Supplies
Power is supplied to the MAX22005PMB# through the
J1 Pmod connector’s DVDD pins 6 and 12. DVDD from
the USB2PMB2# is 3.3V. The MAX22005 IC DVDD pins
are supplied directly from the J1 DVDD pins. AVDD is
supplied by DVDD through a Pi filter. HVDD and HVSS
are supplied by DVDD through a dual boost converter,
the MAX8614A. DGND and AGND are connected at one
point, the 0Ω R5 short. See Table 1 for the expected
values of each supply rail. The expected max current
consumption of the MAX22005PMB# is less than 40mA.
Analog Input Conguration
The MAX22005PMB# groups the MAX22005’s 12 analog
inputs into four sets of three consecutive inputs, called trip-
lets. Each triplet is connected as in Figure 9, which is the
first triplet consisting of AI1, AI2, and AI3. The MAX14757
analog switch is used to insert the 49.9Ω precision resis-
tor for current mode measurements. Also, refer to the full
MAX22005PMB# schematic diagram to see the J2 and J3
connector to IC input pin connections in their entirety.
Table 1. Supply Voltages
Figure 9. Multifunctional Universal Triplet Input
Figure 8. MAX22005PMB# Pmod Connector Schematic
SUPPLY VOLTAGE
DVDD 3.3V ±0.1V
AVDD 3.3V ±0.1V
HVDD +15V ±0.5V
HVSS -15V ±0.5V
Pin 1 (CH 1)
Pin 2
Pin 3
AI1
AI2
AI3
GPIO0
J2
4.7 5kΩ
4.7 5kΩ
4.7 5kΩ
49 .9Ω
MAX14757
(S W0)
30V

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MAX22005PMB# Evaluates: MAX22005
The analog input pin numbering in this document and
their corresponding J2 and J3 analog input connector and
IC pin names are summarized in Table 2.
The Munich GUI provides an intuitive way to easily ana-
lyze four single-ended “universal” analog inputs, i.e.,
an input that can measure Voltage or Current. These
four universal inputs are Pin 1 (CH1), Pin 4 (CH2), Pin
7 (CH3), and Pin 10 (CH4). The additional inputs Pin 2
(AI3), Pin 5 (AI6), Pin 8 (AI9), and Pin 11 (AI12) should
be grounded when using the GUI to ensure accurate
measurements of the universal Channel inputs. This can
be achieved by connecting a wire between these pins
and their adjacent GND pins (Pin 3, Pin 6, Pin 9, and
Pin 12). The GUI measures the single-ended channel
inputs using the MAX22005’s multifunctional differential
measurement modes. Using Triplet 1 (AI1, AI2, AI3) as an
example, the voltage is measured differentially from AI1
to AI3. Grounding AI3 is recommended to avoid floating
connections and ensure a more accurate measurement.
After closing SW0, the current is measured by the volt-
age across the sense resistor from AI1 to AI2. Since the
GUI measures differentially, a differential voltage source
from AI1 to AI3 can also be measured. In all cases, inac-
curacies due to (potentially long) input wire voltage drops
should be taken into consideration.
When using the MAX22005PMB# with your own soft-
ware, Pins 2, 5, 8, and 11 (AI3, AI6, AI9, and AI12) can
be used to accommodate other input configurations, for
example to measure a single-ended voltage like the volt-
age drop across a wire to ground. Refer to Application Note
7413-MAX22005 Universal Analog Input Enables Flexible
Industrial Control Systems for possible example configura-
tions, in particular the Multifunction Configuration section.
LEDs
The DS1 LED is used to confirm that the Pmod DVDD
is being supplied to the MAX22005PMB# through the J1
connector (pins 6 and 12). The USB2PMB2# DVDD is
3.3V. The DS2 through DS5 are used to indicate if GPIO0
through GPIO3, respectively, are high (LED on) or low
(LED off). The GPIO0 through GPIO3 control switches
SW0 through SW3 which switch in the 49.9Ω precision
sense resistors for the current measurements. Refer to
Table 3 for a summary of the LED states.
Surge Protection
No external surge suppression is needed as all the
MAX22005 IC analog inputs are protected against up to
±1.5kV surge pulses as per IEC61000-4-5 using series
4.75kΩ 0.4000W resistors.
Table 2. Input Pin Names
Table 3. LED Description
J2 AND J3
CONNECTOR - PIN
PIN
NAME IC PIN TRIPLET
J2 - 1 1 (CH1) AI1
1
J2 - 2 2 AI3
J2 - 3 3 GND
J2 - 4 4 (CH2) AI4
2J2 - 5 5 AI6
J2 - 6 6 GND
J3 - 1 7 (CH3) AI7
3J3 - 2 8 AI9
J3 - 3 9 GND
J3 - 4 10 (CH4) AI10
4J3 - 5 11 AI12
J3 - 6 12 GND
LED ON OFF
DS1 DVDD Connected DVDD Disconnected
DS2 SW0 Closed (CH 1 Current Mode) SW0 Open (CH1 Voltage Mode)
DS3 SW1 Closed (CH 2 Current Mode) SW1 Open (CH2 Voltage Mode)
DS4 SW2 Closed (CH 3 Current Mode) SW2 Open (CH3 Voltage Mode)
DS5 SW3 Closed (CH 4 Current Mode) SW3 Open (CH4 Voltage Mode)

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MAX22005PMB# Evaluates: MAX22005
Detailed Description of Software
The MAX22005PMB# GUI is a part of the Munich GUI
for use with USB2PMB2#. A list of all the GUIs and sup-
ported devices can be found in the Device tab. This is
where the MAX22005PMB# GUI is found. A screenshot of
the MAX22005PMB# GUI is provided in Figure 10. In the
Window tab, one can switch between multiple open GUIs,
however the user must disconnect from one GUI in order
to use another (only one GUI/device can be used at a
time). The Status Log lists the status and error messages
which can be cleared using the Clear Log button on the
right. The Scope box represents the measured Channel
voltages or currents over time. It is color-coded to match
the Channel colors in the Measurement Configuration
box. Near the Autoscale checkbox is a collection of
graph tool features including (from top left to right): play
or pause, “grab and drag” or “zoom in on selection,” print,
save, graph settings, zoom in, zoom out, default zoom
(includes all samples), zoom undo, and zoom redo. The
Scope graph can be enlarged by clicking the arrow button
on the top left and shrunk back by pressing it again.
The Measurement Configuration box is where Channel
measurements can be enabled or disabled by checking
the appropriate channel box. The measurements can be
displayed in Physical Values (volts or amperes) or the
raw ADC Counts (in decimal) by choosing the corre-
sponding button in the Measurement Configuration box.
The History button enables the graph to display up to the
number of samples chosen in the History Length drop-
down menu. In the Results box, one can switch between
Voltage (left) and Current (right and blue) modes using
the appropriate channel’s button. The displayed measure-
ment results are an average of the number of samples
chosen in the Average drop-down menu. At the very bot-
tom of the GUI, one can quickly see the connection status
and Munich GUI version number.
Figure 10. MAX22005PMB# GUI Software
#Denotes RoHS compliance.
PART TYPE
MAX22005PMB## Peripheral Module
Ordering Information

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MAX22005PMB# Evaluates: MAX22005
MAX22005PMB# Bill of Materials
ITEM REF_DES QTY MFG PART # MANUFACTURER VALUE DESCRIPTION COMMENTS
1C1, C2 2C0805X5R6R3-106MNE; C2012X5R0J106M125AB;
JMK212BJ106MG VENKEL LTD;TDK;TAIYO YUDEN 10UF CAP; SMT (0805); 10UF; 20%; 6.3V; X5R; CERAMIC
2C3, C6, C15-C18,
C22, C42 8
C0603C105K4RAC;C1608X7R1C105K080AC;
EMK107B7105KA;CGA3E1X7R1C105K080AC;
0603YC105KAT2A
KEMET;MURATA;TDK;TAIYO
YUDEN;TDK;AVX 1UF CAP; SMT (0603); 1UF; 10%; 16V; X7R; CERAMIC
3C4, C7, C10, C11,
C19, C20 6
C0402C101J5GAC;NMC0402NPO101J;
CC0402JRNPO9BN101;GRM1555C1H101JA01;
C1005C0G1H101J050BA
KEMET;NIC COMPONENTS
CORP.;YAGEO
PHICOMP;MURATA;TDK
100PF CAP; SMT (0402); 100PF; 5%; 50V; C0G; CERAMIC
4C5, C8, C12, C13,
C21, C27 608053C225KAT2A;TMK212B7225KG; GRM21BR71E225KA73;GRT21BR71E225KE13
AVX;TAIYO
YUDEN;MURATA;MURATA 2.2UF CAP; SMT (0805); 2.2UF; 10%; 25V; X7R; CERAMIC
5C9 1CGA2B3X7R0J224M050BB TDK 0.22UF CAP; SMT (0402); 0.22UF; 20%; 6.3V; X7R; CERAMIC
6C14 1
GRM21BR71A475KA73; LMK212B7475KG-T;
C2012X7R1A475K125AC
MURATA;TAIYO YUDEN;TDK 4.7UF CAP; SMT (0805); 4.7UF; 10%; 10V; X7R; CERAMIC
7C23, C25 2
CC0603KRX7R0BB104;GRM188R72A104KA35;
HMK107B7104KA;06031C104KAT2A;
GRM188R72A104K
YAGEO;MURATA;TAIYO
YUDEN;AVX;MURATA 0.1UF CAP; SMT (0603); 0.1UF; 10%; 100V; X7R; CERAMIC
8C24 1C0603C224K3RAC;GMC10X7R224K25;
GRM188R71E224KA88;C1608X7R1E224K080AC
KEMET;MURATA;MURATA;TDK 0.22UF CAP; SMT (0603); 0.22UF; 10%; 25V; X7R; CERAMIC
9C26, C28 2
C1206C105K5RAC;GRM31CR71H105KA61;
GRM31MR71H105KA88;GCM31MR71H105KA55;
CGA5L3X7R1H105K160AB;C3216X7R1H105K160AE
KEMET;MURATA;MURATA;
MURATA;TDK;TDK 1UF CAP; SMT (1206); 1UF; 10%; 50V; X7R; CERAMIC
10 C29 1C0805C151J5GAC KEMET 150PF CAP; SMT (0805); 150PF; 5%; 50V; C0G; CERAMIC
11 C30-C41 12 C0402C680K5RAC KEMET 68PF CAP; SMT (0402); 68PF; 10%; 50V; X7R; CERAMIC
12 D1, D2 2MBR0520L FAIRCHILD SEMICONDUCTOR MBR0520L DIODE, SCHOTTKY, SOD-123, PIV=20V,
Vf=0.385V@If=0.5A, If(ave)=0.5A
13 D3-D6 4SMBJ33CA LITTLEFUSE 33V DIODE; TVS; SMB (DO-214AA); VRM=33V; IPP=11.3A
14 DS1-DS5 5SML-P12PT ROHM SML-P12PT
DIODE; LED; SML-P1 SERIES; ULTRA COMPACT HIGH
BRIGHTNESS LED; GREEN; SMT (0402); VF=2.2V;
IF=0.02A
15 J1 1TSW-106-08-S-D-RA SAMTEC TSW -106-08-S-D-RA CONNECTOR; THROUGH HOLE; DOUBLE ROW ;
RIGHT ANGLE; 12PINS;
16 J2, J3 2250-206 WAGO 250-206
CONNECTOR; FEMALE; THROUGH HOLE; PCB
TERMINAL BLOCK; PUSH-BUTTON; RIGHT ANGLE;
6PIN ;
17 L1, L4, L5 3LQH2HPZ220MJR MURATA 22UH INDUCTOR; SMT (1008); MAGNETICALLY SHIELDED;
22UH; TOL=+/-20%; 0.54A
18 L2, L3 2LQH32CN100K33 MURATA 10UH INDUCTOR; SMT (1210); FERRITE; 10UH; 10%; 0.45A
19 R1 1ERJ-2GEJ104 PANASONIC 100K RES; SMT (0402); 100K; 5%; +/-200PPM/DEGC;
0.1000W
20 R2-R4 3CRCW020110K0FK VISHAY DALE 10K RES; SMT (0201); 10K; 1%; +/-100PPM/DEGC; 0.0500W
21 R5 1HCJ0402ZT0R00 STACKPOLE ELECTRONICS INC. 0RES; SMT (0402); 0; JUMPER; JUMPER; 0.1250W
22 R6 1CRCW0402300KFK VISHAY DALE 300K
RES; SMT (0402); 300K; 1%; +/-100PPM/DEGK;
0.0630W
23 R7 1ERJ-2RKF2492 PANASONIC 24.9K RES; SMT (0402); 24.9K; 1%; +/-100PPM/DEGC;
0.1000W
24 R8 1ERJ-2RKF6983 PANASONIC 698K RES; SMT (0402); 698K; 1%; +/-100PPM/DEGC;
0.1000W
25 R9 1ERJ-2RKF4992 PANASONIC 49.9K RES; SMT (0402); 49.9K; 1%; +/-100PPM/DEGC;
0.1000W
26 R10-R13 4ERJ-2RKF10R0 PANASONIC 10 RES; SMT (0402); 10; 1%; +/-100PPM/DEGC; 0.1000W
27 R14-R16, R23-
R25, R30-R35 12 MMA02040C4751F VISHAY BEYSCHLAG 4.75K RES; SMT; 4.75K; 1%; +/-50PPM/DEGK; 0.4000W
28 R17, R19-R22 5ERJ-2GEJ152 PANASONIC 1.5K RES; SMT (0402); 1.5K; 5%; +/-200PPM/DEGC; 0.1000W
29 R18 1CRCW02011K00FK VISHAY DALE 1K RES; SMT (0201); 1K; 1%; +/-100PPM/DEGC; 0.0500W
30 R26-R29 4RN73C2A49R9BTDF; 1676703-2 TE CONNECTIVITY;TE
CONNECTIVITY 49.9 RES; SMT (0805); 49.9; 0.10%; +/-10PPM/DEGC; 0.1000W
31 U1 1MAX8614AETD+ MAXIM MAX8614AETD+ IC; CONV; DUAL-OUTPUT (+ AND -) DC-DC
CONVERTER FOR CCD; TDFN14
32 U2 1MAX22005 MAXIM MAX22005
EVKIT PART - IC; RX16; TWELVE-CHANNEL FACTORY-
CALIBRATED CONFIGURABLE INDUSTRIAL ANALOG
INPUT; QFN48
33 U3 1MAX14757EUE+ MAXIM MAX14757EUE+
IC; ASW; QUAD NO SPST; +70V ANALOG SWITCH;
TSSOP16
34 PCB 1MAX22005PMB MAXIM PCB PCB:MAX22005PMB -
TOTAL 100