AD7811/AD7812
Table I. AD7811 Channel Configurations
V
IN4
/AGND
0
0
0
0
1
1
1
X
X
X
X
DIF/SGL
0
0
0
0
0
0
0
1
1
1
1
CH1
0
0
1
1
0
0
1
0
0
1
1
CH0
0
1
0
1
0
1
0
0
1
0
1
Description
V
IN1
Single-Ended with Respect to AGND
V
IN2
Single-Ended with Respect to AGND
V
IN3
Single-Ended with Respect to AGND
V
IN4
Single-Ended with Respect to AGND
V
IN1
Pseudo Differential with Respect to V
IN4
V
IN2
Pseudo Differential with Respect to V
IN4
V
IN3
Pseudo Differential with Respect to V
IN4
V
IN1
(+) Pseudo Differential with Respect to V
IN2
(–)
V
IN3
(+) Pseudo Differential with Respect to V
IN4
(–)
Internal Test. SAR Input Equal to V
REF
/2
Internal Test. SAR Input Equal to V
REF
Table II. AD7812 Channel Configurations
V
IN8
/AGND
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
X
X
X
X
X
X
DIF/SGL
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
CH2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
CH1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
0
1
1
0
0
CH0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
Description
V
IN1
Single-Ended with Respect to AGND
V
IN2
Single-Ended with Respect to AGND
V
IN3
Single-Ended with Respect to AGND
V
IN4
Single-Ended with Respect to AGND
V
IN5
Single-Ended with Respect to AGND
V
IN6
Single-Ended with Respect to AGND
V
IN7
Single-Ended with Respect to AGND
V
IN8
Single-Ended with Respect to AGND
V
IN1
Pseudo Differential with Respect to V
IN8
V
IN2
Pseudo Differential with Respect to V
IN8
V
IN3
Pseudo Differential with Respect to V
IN8
V
IN4
Pseudo Differential with Respect to V
IN8
V
IN5
Pseudo Differential with Respect to V
IN8
V
IN6
Pseudo Differential with Respect to V
IN8
V
IN7
Pseudo Differential with Respect to V
IN8
V
IN1
(+) Pseudo Differential with Respect to V
IN2
(–)
V
IN3
(+) Pseudo Differential with Respect to V
IN4
(–)
V
IN5
(+) Pseudo Differential with Respect to V
IN6
(–)
V
IN7
(+) Pseudo Differential with Respect to V
IN8
(–)
Internal Test. SAR Input Equal to V
REF
/2
Internal Test. SAR Input Equal to V
REF
REV. B
–9–
AD [ ANALOG DEVICES ]
