Chapter4 ConnectingSignals
©NationalInstruments Corporation 4-15 ATE Series User Manual
Analog Input Signal Connections♦AT-MIO-16E-1,ΑΤ-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10,
AT-MIO-16XE-10,AT-AI-16XE-10,and AT-MIO-16XE-50
The AI signals are ACH<0..15>,AISENSE, and AIGND. The
ACH<0..15>signals are tied to the 16 analog input channels of the
ATE Series device. In single-ended mode, signals connected to
ACH<0..15>are routed to the positive input of the device PGIA.
In differentialmode, signals connected to ACH<0..7> are routed to the
positiveinput of the PGIA, and signals connected to ACH<8..15> are
routed to the negativeinput of the PGIA.
♦AT-MIO-64E-3
TheAI signals are ACH<0..63>, AISENSE, AISENSE2, and AIGND. The
ACH<0..63>signals are tied to the 64 AI channels of the AT-MIO-64E-3.
In single-ended mode, signals connected to ACH<0..63> are routed to the
positiveinput of the AT-MIO-64E-3 PGIA. In differential mode, signals
connected to ACH<0..7,16..23, 32..39, 48..55> are routed to the positive
input of the PGIA, and signals connected to ACH<8..15,24 ..31, 40..47,
56..63> are routed to the negativeinput of the PGIA.
Caution Exceedingthe differentialand common-mode input ranges distorts the input
signals.Exceeding the maximum input voltage rating can damage the AT E Series device
andthe PC. N I is not liable for any damage resulting from such signal connections. The
maximum input voltage ratings are listed in Tables4-3 through 4-6 in the Protection
column.
FREQ_OUT DO — — 3.5 at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
1DIO<6..7>are also pulled down with a 50 kΩresistor.
AI= Analog Input DIO = Digital Input/Out put pu= pull up
AO= Analog Output DO=Digital Output
Thetolerance on the 50 kΩpull-up and pull-down resistors is very large. Actual value may range between 17 kΩand 100 kΩ.
Table4-6. I/O Signal Summary for the AT-MIO-16XE-50 (Continued)
SignalName Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mAat V)
Sink
(mAat V)
Rise
Time
(ns) Bias