Extended Analog Input Subconnector
Appendix D
AT-MIO-64F-5 User Manual
D-2
© National Instruments Corporation
Extended Analog Input Subconnector Signal Descriptions
Pin
Signal Name
Reference
Description
1-24
ACH<16..27>
AI GND
Analog Input Channels 16 through 27 and
ACH<40..51>
AI GND
40 through 51 Ð In the differential mode,
the input is configured for up to 32
channels, with ACH<16..27> and
ACH<40..51> representing differential
Channels 16 through 27 and 40 through
51. In the RSE and NRSE modes, the
input is configured for up to 64 channels
with ACH<16..27> as Channels 16
through 27 and ACH<40..51>as Channels
40 through 51.
25
AI SENSE
AI GND
Analog Input Sense Ð This pin serves as
the reference mode when the board is in
NRSE configuration. If desired, this
signal can be programmed to be driven by
the board analog input ground.
26
AI GND
N/A
Analog Input Ground Ð These pins are the
reference point for single-ended
measurements and the bias current return
point for differential measurements.
27-50
ACH<28..39>
AI GND
Analog Input Channels 28 through 39 and
ACH<52..63>
AI GND
52 through 63 Ð In the DIFF mode,
ACH<28..39> and ACH<52..63>
represent differential Channels 28 through
39. In the RSE and NRSE modes,
ACH<28..39> represent Channels 28
through 39, and ACH<52..63> represent
Channels 52 through 63.
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