Use USBDAQ to Complete the Calibration of PGA
Use USB_DAQ to Complete the Calibration of PGA 309 EVM Iven Xu and Ian Williams Feb. 6 th, 2013, updated May 20 th 2016 1
Agenda 1. Three output modes of PGA 309 EVM-USB a) b) c) 4 -wire voltage output mode 3 -wire voltage output mode Current output mode 2
a) 4 -wire voltage output mode 3
a) 4 -wire voltage output mode: • PGA 309 EVM Default Configuration 4
a) 4 -wire voltage output mode: • USB_DAQ Board Default Configuration 5
a) 4 -wire voltage output mode: Windows 7 Attention Default GUI Interface 6
a) 4 -wire voltage output mode: 7
a) 4 -wire voltage output mode: 8
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a) 4 -wire voltage output mode: 10
a) 4 -wire voltage output mode: 11
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a) 4 -wire voltage output mode: 22
b) 3 -wire voltage output mode 23
b) 3 -wire voltage output mode: • PGA 309 EVM Jumper Configuration – change JMP 7, JMP 8 24
b) 3 -wire voltage output mode: • USB_DAQ Board Default Configuration 25
b) 3 -wire voltage output mode: Windows 7 Attention Default GUI Interface 26
b) 3 -wire voltage output mode: 27
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b) 3 -wire voltage output mode: 29
b) 3 -wire voltage output mode: 30
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b) 3 -wire voltage output mode: Rename 32
b) 3 -wire voltage output mode: Select Pre-cal file we created 33
b) 3 -wire voltage output mode: 34
b) 3 -wire voltage output mode: Select Model file we created 35
b) 3 -wire voltage output mode: 36
b) 3 -wire voltage output mode: 37
b) 3 -wire voltage output mode: Press again 38
b) 3 -wire voltage output mode: 39
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c) Current output mode 43
c) Current output mode: • USB DAQ Configuration 44
c) Current output mode: • PGA 309 EVM Configuration * When we want to use current output mode of XTR 117: * we should make sure the configuration of PGA 309 is in 4 -wire voltage output mode; * Because in 3 -wire voltage output mode of PGA 309, we should turn on/off the Vs of PGA 309. But in 3 -wire mode, the one-wire and Vout is connect in one junction, so we cannot use one-wire to control the Vs (turn on/off). * conclusion: is we should use 4 -wire voltage output for current output. 45
c) Current output mode: 46
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Thanks! 52
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