Keithley ADC-16 User Manual page 87

ADC-16 USER GUIDE
READ:
BIT: D7 D6 D5 D4 D3 D2 D1 DO
OIP B14 813 B12 B11 B10 B9 88
READ:
When D6 of the Control Register = 1: O/P = 1 input is Overrange; O/P = 0 input is In
Scale.
87 B6 B5 84 B3 82
B1
BO
I
When D6 of the Control Register
= 0: O/P = 1
data is Positive; O/P
=
0 data is
Negative.
READNRITE:
\
B8-B
14
= Data bits.
G1 G O CH4 CH2 CH1 EX4 EX2 EX1
Data is readable from the A/D converter only when an A/D conversion is not in process. Always
check the A/D BUSY Bit in the Status Register (Base Address +3) before initiating a conversion or
reading the result.
8.4
MUX & GAIN REGISTER (BASE ADDRESS +2)
The MUX & Gain Register is a read/write register that clears to zeroes on power-up or whenever
RESET is asserted. Format of the data is as follows:
Base Address +2
BIT: D7 D6 D5 D4 D3 D2 D1 DO
G1 G O
GAIN
0 0 1
0
1
10
1 0
100
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