JYTEK PCIe/PXIe-6301 Series User manual

PCIe/PXIe-6301 Series
24 bits Temperature Input
Module for Resistance
Temperature Detector
User Manual
User Manual Version: V1.6
Revision Date: Apr. 18, 2020

Table of Contents
1. Overview............................................................................................1
1.1 Introduction ................................................................................1
1.2 Main Features ............................................................................2
1.3 Abbreviations .............................................................................2
2. Hardware Specifications..................................................................3
2.1 System Diagram.........................................................................3
2.2 Sensor Connection.....................................................................4
2.3 Analog Input Performance .........................................................7
2.4 PFI..............................................................................................7
2.5 Front Panel conections and Pinouts ..........................................8
3. Performance Test............................................................................11
3.1 Resistance measurement noise...............................................11
3.2 Temperature measurement accuracy......................................18
3.2.1 Temperature measurement accuracy(4-wire)................18
3.2.2 Temperature measurement accuracy(3-wire)................19
3.2.3 Temperature measurement accuracy(3-wire)................19
3.3 Temperature measurement stability ........................................21
3.4 RDC (Resistance-digital conversion) accuracy........................22
4. Software...........................................................................................23
4.1 System Requirements..............................................................23
4.2 System Software......................................................................23
4.3 C# Programming Language.....................................................24
4.4 PCIe/PXIe-6301 Hardware Driver............................................24
4.5 Install the SeeSharpTools from JYTEK ...................................24
4.6 Running C# Programs in Linux................................................25
5. Operating PCIe/PXIe-6301 Boards ................................................25
5.1 Quick Start ...............................................................................25
5.2 AI Operations ...........................................................................25
5.2.1 Channel Scan Sequence...............................................26
5.2.2 ADC Timing Modes........................................................27
5.2.3 Sampling Rate ...............................................................28
5.3 Conversion of Resistance and Temperature ...........................30
5.4 Trigger Source .........................................................................31
5.4.1 Immediate Trigger..........................................................31
5.4.2 Software Trigger ............................................................31
5.4.3 External analog trigger...................................................31

5.4.4 External digital trigger....................................................33
5.5 Trigger Mode............................................................................33
5.5.1 Start Trigger...................................................................33
5.5.2 Reference Trigger..........................................................34
5.5.3 Re-Trigger......................................................................34
6. Calibration .......................................................................................36
7. Using PCIe/PXIe-6301 in Other Software......................................37
7.1 Python......................................................................................37
7.2 C++ ..........................................................................................37
7.3 LabVIEW..................................................................................37
8. Appendix..........................................................................................38
9. About JYTEK...................................................................................40
9.1 JYTEK China............................................................................40
9.2 JYTEK Korea and JYTEK in Other Countries..........................40
9.3 JYTEK Hardware Products......................................................40
9.4 JYTEK Software Platform ........................................................41
9.5 JYTEK Warranty and SupportServices....................................41
10. Statement.......................................................................................42
Figure 1 PCIe/PXIe-6301 System Diagram .....................................3
Figure 2 2-wire RTD connection ......................................................4
Figure 3 3-wire RTD connection ......................................................5
Figure 4 4-wire RTD connection ......................................................6
Figure 5 PXIe/PCIe 6301 Front Panel..............................................8
Figure 6 Resistance Measurement noise (4-wire, Level 0)............11
Figure 7 Resistance Measurement noise (4-wire, Level 1)............12
Figure 8 Resistance Measurement noise (4-wire, Level 2)............12
Figure 9 Resistance Measurement noise (4-wire, Level 3)............13
Figure 10 Resistance Measurement noise (4-wire, Level 4)..........13
Figure 11 Resistance Measurement noise (4-wire, Level 5)..........14
Figure 12 Resistance Measurement noise (3-wire, Level 0)..........14
Figure 13 Resistance Measurement noise (3-wire, Level 1)..........15
Figure 14 Resistance Measurement noise (3-wire, Level 2)..........15
Figure 15 Resistance Measurement noise (3-wire, Level 3)..........16
Figure 16 Resistance Measurement noise (3-wire, Level 4)..........16
Figure 17 Resistance Measurement noise (3-wire, Level 5)..........17
Figure 18 Typical Error (4-wire,100Ω Input)...................................18
Figure 19 Typical Error (4-wire,250Ω Input)...................................18

Figure 20 Typical Error (3-wire,100Ω Input)...................................19
Figure 21 Typical Error (3-wire,250Ω Input)...................................19
Figure 22 Typical Error (2-wire,100Ω Input)...................................20
Figure 23 Typical Error (2-wire,250Ω Input)...................................20
Figure 24 Typical Drift(250 Ω Input)...............................................21
Figure 25 Typical Drift(Different Inputs).........................................21
Figure 26 Typical channel scan sequence.....................................26
Figure 27 Random channel scan sequence ..................................27
Figure 28 A / D conversion and sampling......................................28
Figure 29 Hysteresis comparator...................................................32
Figure 30 Window comparator.......................................................32
Figure 31 Rising and falling edges of digital signals......................33
Figure 32 Start trigger....................................................................33
Figure 33 Reference trigger...........................................................34
Figure 34 Re-Trigger......................................................................35
Table 1 PCIe/PXIe-6301 Channel Group.........................................1
Table 2 6301 on different buses.......................................................3
Table 3 Analog Input Performance ..................................................7
Table 4 PFI Specification .................................................................7
Table 5 Pinouts for “4-wire mode” configuration (supports 2-wire, 3-
wire or 4-wire RTD)...................................................................9
Table 6 Pinouts for “ 3-wire mode “ configuration (supports 2-wire, 3-
wire RTD)................................................................................10
Table 7 Resistance Measurement noise........................................11
Table 8 Temperature measurement accuracy (4-wire)..................18
Table 9 Temperature measurement accuracy(3-wire)...................19
Table 10 Temperature measurement accuracy(2-wire).................20
Table 11 Temperature measurement stability ...............................21
Table 12 RDC (Resistance-digital conbersion) accuracy ..............22
Table 13 Supported Linux Versions...............................................23
Table 14 A/D conversion time at different speed levels.................28
Table 15 ADC Timing Modes and maximum aggregate sampling rate
................................................................................................29

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1.Overview
This chapter presents the information how to use this manual and how to
operate the module if you are already familiar with Microsoft Visual Studio
and C# programming language.
1.1 Introduction
JYTEK PCIe/PXIe-6301 is a high-resolution temperature measurement
module designed for PT100 RTD sensor.
PCIe/PXIe-6301 supports two wiring topologies, “4-wire mode” and “3-
wire mode”, which can be selected by software.
In “4-wire mode”, each channel can support 2-wire, 3-wire or 4-wire RTD
configuration for a total of 20 channels;
In “3-wire mode”, each channel can support 2-wire or 3-wire RTD
configuration for a total of 32 channels.
PCIe/PXIe-6301 can measure maximum resistance of 400 Ω, to cover
the full range of RTD sensor PT100, with the maximum sampling rate of
up to 800 samples per second.
The PCIe/PXIe-6301 supports a variety of acquisition trigger modes such
as software and external, and can generate trigger signals such as start
and window. All trigger signals are routed through PFI or PXI chassis
backplane.
PCIe/PXIe-6301 module channel grouping is shown in Table 1.
Table 1 PCIe/PXIe-6301 Channel Group
Wiring topology ADC Channels
ADC 0 Ch0, Ch1, Ch2, Ch3, Ch4
ADC 1 Ch5, Ch6, Ch7, Ch8, Ch9
ADC 2 Ch10, Ch11, Ch12, Ch13, Ch14
ADC 3 Ch15, Ch16, Ch17, Ch18, Ch19
ADC 0 Ch0, Ch1, Ch2, Ch3, Ch4, Ch5, Ch6, Ch7
ADC 1 Ch8, Ch9, Ch10, Ch11, Ch12, Ch13, Ch14, Ch15
ADC 2 Ch16, Ch17, Ch18, Ch19, Ch20, Ch21, Ch22, Ch23
ADC 3 Ch24, Ch25, Ch26, Ch27, Ch28, Ch29, Ch30, Ch31
4-wire mode
3-wire mode

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1.2 Main Features
⚫32 channels (3-wire mode), 20 channels (4-wire mode)
⚫24 bits ADC resolution
⚫-200 °C --+850 °C temperature measurement range (using PT100
thermistor sensor)
⚫0 ~ 400 Ω range
⚫The balance line resistance compensation is provided when the
three wire thermal resistance sensor is input
⚫128M sample onboard FIFO buffer for analog input
⚫DMA for analog input
⚫Provide resistance or temperature measurement value
⚫Analog/Digital/Software Trigger
1.3 Abbreviations
AI: Analog Input
ADC: Analog to Digital Converter
PFI: Programmable Function Interface
RTD: Resistance Temperature Detector
Ex+: Positive terminal of current Excitation
Ex-: Ngative terminal of current Excitation
RDC: Resistance-to-Digital Converter
OS: Operating System

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2.Hardware Specifications
The PCIe/PXIe-6301 is one of the family of temperature input module,
which can run on PCIe, PXIe, TXI (Thuderbolt) and USB buses (coming
soon). PCIe/PXIe-6301 on different buses are shown in Table 2.
Table 2 6301 on different buses
2.1 System Diagram
Multiplexer
Multiplexer
Multiplexer
Multiplexer
ADC0
ADC1
ADC2
ADC3
DDR FPGA
Front-panlel Interface
Ch0-Ch4/Ch0-Ch7
Ch5-Ch9/Ch8-Ch15
Ch10-Ch14/Ch16-Ch23
Ch15-Ch19/Ch24-Ch31
Figure 1 PCIe/PXIe-6301 System Diagram
Figure 1 shows the system diagram of the PCIe/PXIe-6301. The system
is mainly composed of ADC, DDR and FPGA control modules. The
FPGA-based driver code provides a stable and efficient PCIe / PXIe /
USB interface. PCIe/PXIe-6301 uses four ADCs at the same time. Each
ADC is responsible for the measurement of one channel (5 or 8) and
selects one of the channels through the multiplexer.
6301 Model PCIe PXIe TXI USB
6301 aaaa

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2.2 Sensor Connection
PCIe/PXIe-6301 can support 2-wire, 3-wire or 4-wire RTD connection at
the same time. The wiring configuration used by each channel can be
independently configured by software.
2-wire RTD connection
When using a 2-wire RTD configuration, user needs to connect the
negative terminal of current excitation (Ex-) to the AI- terminal as shown
in Figure 2. Due to the presence of lead wires resistance, this type of
connection may introduce large measurement errors, which are related
to the material and material of the lead wire. This type of wiring is not
suitable for high precision temperature measurement needs.
Figure 2 2-wire RTD connection

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3-wire RTD connection
In a 3-wire RTD configuration, AI+ terminal will output a precision current
excitation, 500 µA to RTD sensor and flow back through the Ex- terminal
and AI- terminal as shown in Figure 3 . Since the voltage generated by
the RTD connecting the AI+ terminal and the voltage connected to the AI-
terminal will cancel each other, this connection can effectively eliminate
the influence of the lead wire resistance, but in practical applications, the
resistance of the two lead wires is difficult to match completely, so there
will still be a certain degree of mismatch error.
Figure 3 3-wire RTD connection

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4-wire RTD connection
1
In a 4-wire configuration, the Ex+ terminal will output an current excitation,
1000 µA and flows back through the Ex- terminal and AI- terminal as
shown in Figure 4. Since the current loop and voltage measuring circuit
of the lead wire are independently, so will not introduce errors due to lead
wire resistance.
Figure 4 4-wire RTD connection
1
If you need to use a 4-wire configuration, you must configure the channel topology to a “4-wire mode”
when configuring the acquisition task. In this case, the PCIe/PXIe-6301 provides a total of 20 channels. If
you do not need to use a 4-wire configuration, you can configure the acquisition task to a “3-wire mode”,
in which case the PCIe/PXIe-6301 provides a total of 32 channels.

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2.3 Analog Input Performance
Table 3 Analog Input Performance
2.4 PFI
Table 4 PFI Specification
32ch (2-wire/3-wire)
20ch (2-wire/3-wire/4-wire)
Synchronous acquisition No
Sensor support RTD PT100
ADC resolution 24 bit
ADC type Δ-Σ
Input isolation Yes
800 Sample/s MAX(4 channels)
160 Sample/s (2-wire/3-wire/4-wire, 20ch fully used)
100 Sample/s (2-wire/3-wire, 32ch fully used)
Clock Onboard
Storage depth 128M Samples
Measuring range 0 Ω – 400 Ω / -200 ℃- +850 ℃(for PT100)
Terminal type 2-wire/3-wire/4-wire
1000 uA (4-wire)
500 uA (2-wire/3-wire)
Overvoltage protection ±30 V
Trigger type Analog/Digital/Software
Analog trigger range 0 Ω – 400 Ω / -200 ℃- +850 ℃(for PT100)
Trigger mode StartTrigger，ReferenceTrigger，ReTrigger
Number of channels
Sampling rate
Excitation current
Number of channels 8, 4 of them have hardware pull-ups
Trigger voltage：5 V TTL
Trigger edge：Rising /Falling
Initial state Input*
External digital trigger interface
6301's PFI is only used for external digital triggering, cannot be configured as output

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2.5 Front Panel conections and Pinouts
Figure 5 PXIe/PCIe 6301 Front Panel
PCIe/PXIe-6301 supports two wiring topologies, “4-wire mode” and 3-
wire mode”.
The pinout of the “4-wire mode” is shown in Table 5, the pinout of the “3-
wire mode” is shown in Table 6.

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Table 5 Pinouts for “4-wire mode” configuration (supports 2-wire, 3-wire or 4-wire RTD)
Channel Pin No. Description Channel Pin No. Description
P43
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P43
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P35 AI+, resistance measurement high side P35 AI+, resistance measurement high side
P1 AI- , resistance measurement low side P1 AI- , resistance measurement low side
P36 Ex- , Negative terminal of current exciation P36 Ex- , Negative terminal of current exciation
P9
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P9
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P37 AI+ , resistance measurement high side P37 AI+ , resistance measurement high side
P3 AI- , resistance measurement low side P3 AI- , resistance measurement low side
P2 Ex- , Negative terminal of current exciation P2 Ex- , Negative terminal of current exciation
P44
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P44
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P38 AI+ , resistance measurement high side P38 AI+ , resistance measurement high side
P4 AI- , resistance measurement low side P4 AI- , resistance measurement low side
P39 Ex- , Negative terminal of current exciation P39 Ex- , Negative terminal of current exciation
P10
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P10
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P40 AI+ , resistance measurement high side P40 AI+ , resistance measurement high side
P6 AI- , resistance measurement low side P6 AI- , resistance measurement low side
P5 Ex- , Negative terminal of current exciation P5 Ex- , Negative terminal of current exciation
P46
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P46
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P41 AI+ , resistance measurement high side P41 AI+ , resistance measurement high side
P7 AI- , resistance measurement low side P7 AI- , resistance measurement low side
P42 Ex- , Negative terminal of current exciation P42 Ex- , Negative terminal of current exciation
P58
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P58
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P49 AI+ , resistance measurement high side P49 AI+ , resistance measurement high side
P15 AI- , resistance measurement low side P15 AI- , resistance measurement low side
P50 Ex- , Negative terminal of current exciation P50 Ex- , Negative terminal of current exciation
P24
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P24
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P51 AI+, resistance measurement high side P51 AI+, resistance measurement high side
P17 AI- , resistance measurement low side P17 AI- , resistance measurement low side
P16 Ex- , Negative terminal of current exciation P16 Ex- , Negative terminal of current exciation
P59
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P59
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P52 AI+, resistance measurement high side P52 AI+, resistance measurement high side
P18 AI- , resistance measurement low side P18 AI- , resistance measurement low side
P53 Ex- , Negative terminal of current exciation P53 Ex- , Negative terminal of current exciation
P25
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P25
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P54 AI+, resistance measurement high side P54 AI+, resistance measurement high side
P20 AI- , resistance measurement low side P20 AI- , resistance measurement low side
P19 Ex- , Negative terminal of current exciation P19 Ex- , Negative terminal of current exciation
P61
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P61
Ex+, Positive terminal of current excitation
(only for 4-wire mode)
P55 AI+ , resistance measurement high side P55 AI+ , resistance measurement high side
P21 AI- , resistance measurement low side P21 AI- , resistance measurement low side
P57 Ex- , Negative terminal of current exciation P57 Ex- , Negative terminal of current exciation
P30 P30
P31 P31
P32 P32
P33 P33
P34 P34
P64 PFI4 P64 PFI0
P65 PFI5 P65 PFI1
P66 PFI6 (with pull-up resistor) P66 PFI2 (with pull-up resistor)
P67 PFI7 (with pull-up resistor) P67 PFI3 (with pull-up resistor)
P13 P13
P47 P47
P28 P28
P62 P62
P68 P68
Connector 1 (left)
Connector 0 (right)
Ch10
Ch0
Ch11
Ch1
Ch12
Ch2
Ch13
Ch3
Ch14
Ch4
Ch15
Ch5
Ch16
Ch6
Ch17
Ch7
Ch18
Ch8
Ch19
Ch9
GND
GND
GND
GND
PFI
PFI
Others
Reserved, NO connect
Others
Reserved, NO connect

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Table 6 Pinouts for “3-wire mode “configuration (supports 2-wire, 3-wire RTD)
Channel Port Port definition Channel Port Port definition
P35 AI+ , resistance measurement high side P35 AI+ , resistance measurement high side
P1 AI- , resistance measurement low side P1 AI- , resistance measurement low side
P36
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P36
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P37 AI+ , resistance measurement high side P37 AI+ , resistance measurement high side
P3 AI- , resistance measurement low side P3 AI- , resistance measurement low side
P2
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P2
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P38 AI+ , resistance measurement high side P38 AI+ , resistance measurement high side
P4 AI- , resistance measurement low side P4 AI- , resistance measurement low side
P39
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P39
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P40 AI+ , resistance measurement high side P40 AI+ , resistance measurement high side
P6 AI- , resistance measurement low side P6 AI- , resistance measurement low side
P5
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P5
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P41 AI+ , resistance measurement high side P41 AI+ , resistance measurement high side
P7 AI- , resistance measurement low side P7 AI- , resistance measurement low side
P42
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P42
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P43 AI+ , resistance measurement high side P43 AI+ , resistance measurement high side
P9 AI- , resistance measurement low side P9 AI- , resistance measurement low side
P8
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P8
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P44 AI+ , resistance measurement high side P44 AI+ , resistance measurement high side
P10 AI- , resistance measurement low side P10 AI- , resistance measurement low side
P45
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P45
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P46 AI+ , resistance measurement high side P46 AI+ , resistance measurement high side
P12 AI- , resistance measurement low side P12 AI- , resistance measurement low side
P11
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P11
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P49 AI+ , resistance measurement high side P49 AI+ , resistance measurement high side
P15 AI- , resistance measurement low side P15 AI- , resistance measurement low side
P50
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P50
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P51 AI+ , resistance measurement high side P51 AI+ , resistance measurement high side
P17 AI- , resistance measurement low side P17 AI- , resistance measurement low side
P16
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P16
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P52 AI+ , resistance measurement high side P52 AI+ , resistance measurement high side
P18 AI- , resistance measurement low side P18 AI- , resistance measurement low side
P53
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P53
NEG, Short circuit connection to AI- in two-
wire mode
P54 AI+ , resistance measurement high side P54 AI+ , resistance measurement high side
P20 AI- , resistance measurement low side P20 AI- , resistance measurement low side
P19
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P19
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P55 AI+ , resistance measurement high side P55 AI+ , resistance measurement high side
P21 AI- , resistance measurement low side P21 AI- , resistance measurement low side
P57
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P57
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P58 AI+ , resistance measurement high side P58 AI+ , resistance measurement high side
P24 AI- , resistance measurement low side P24 AI- , resistance measurement low side
P23
NEG, short circuit connection to AI- in two-
wire mode
P23
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P59 AI+ , resistance measurement high side P59 AI+ , resistance measurement high side
P25 AI- , resistance measurement low side P25 AI- , resistance measurement low side
P60
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P60
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P61 AI+ , resistance measurement high side P61 AI+ , resistance measurement high side
P27 AI- , resistance measurement low side P27 AI- , resistance measurement low side
P26
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P26
Ex- , Negative terminal of current exciation
(connet to AI- for 2 wire configuration)
P30 P30
P31 P31
P32 P32
P33 P33
P34 P34
P64 PFI4 P64 PFI0
P65 PFI5 P65 PFI1
P66 PFI6 (with pull-up resistor) P66 PFI2 (with pull-up resistor)
P67 PFI7 (with pull-up resistor) P67 PFI3 (with pull-up resistor)
P13 P13
P47 P47
P28 P28
P62 P62
P68 P68
Ch19
Ch3
Connector 1 (left)
Connector 0 (right)
Ch16
Ch0
Ch17
Ch1
Ch18
Ch2
Ch20
Ch4
Ch21
Ch5
Ch22
Ch6
Ch23
Ch7
Ch24
Ch8
Ch25
Ch9
Ch26
Ch10
Ch27
Ch11
Ch28
Ch12
Ch29
Ch13
Ch30
Ch14
Ch31
Ch15
Others
Reserved, NO connect
Others
Reserved, NO connect
GND
GND
GND
GND
PFI
PFI

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3.Performance Test
3.1 Resistance measurement noise
Table 7 Resistance Measurement noise
Figure 6 Resistance Measurement noise (4-wire, Level 0)
Timing mode Noise(2-wire/3-wire)(RMS) Noise(4-wire) (RMS)
Level 0 0.35 mΩ0.18 mΩ
Level 1 0.45 mΩ0.24 mΩ
Level 2 0.65 mΩ 0.5 mΩ
Level 3 0.68 mΩ0.6 mΩ
Level 4 2.1 mΩ1.8 mΩ
Level 5 10.5 mΩ6.6 mΩ

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Figure 7 Resistance Measurement noise (4-wire, Level 1)
Figure 8 Resistance Measurement noise (4-wire, Level 2)
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0100 200 300 400 500 600 700 800 900 1000
Amplitude(mΩ)
Samples
Typical Noise(4-wire,Level 1)

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Figure 9 Resistance Measurement noise (4-wire, Level 3)
Figure 10 Resistance Measurement noise (4-wire, Level 4)

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Figure 11 Resistance Measurement noise (4-wire, Level 5)
Figure 12 Resistance Measurement noise (3-wire, Level 0)

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Figure 13 Resistance Measurement noise (3-wire, Level 1)
Figure 14 Resistance Measurement noise (3-wire, Level 2)

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Figure 15 Resistance Measurement noise (3-wire, Level 3)
Figure 16 Resistance Measurement noise (3-wire, Level 4)