Keithley DAS-8 Series User Manual page 26

Gains and Ranges
A DAS-8 board measures analog input signals in the range of ±5V.
Each DAS-8/PGA(G2) or DAS-8/AO board contains a programmable
gain amplifier (PGA), which allows you to measure analog input signals
in one of several software-selectable unipolar and bipolar ranges. For
each channel on a DAS-8/PGA(G2) or DAS-8/AO board, you can specify
one of five bipolar and four unipolar analog input ranges.
Table 2-1 lists the gains supported by DAS-8 Series boards and the analog
input voltage range for each gain.
Board
DAS-8
DAS-8/LT
DAS-8/PGA
DAS-8/PGA-G2
DAS-8/AO
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Table 2-1. Supported Gains
Range
Gain Bipolar Unipolar
1 ±5V Not available
0.5 ±10V Not available
1 ±5V 0 to 10V
10 ±500mV 0 to 1V
100 ±50mV 0 to 100mV
500 ±10mV 0 to 20mV
0.5 ±10V Not available
1 ±5V 0 to 10V
2 ±2.5V 0 to 5V
4 ±1.25V 0 to 2.5V
8 ±625mV 0 to 1.25V
0.5 ±10V 0 to 10V
1 ±5V Not available
10 ±500mV 0 to 1V
100 ±50mV 0 to 100mV
500 ±10mV 0 to 20mV
2-5