Datasheet

AD1836A Data Sheet
Rev. A | Page 22 of 24
AD1836A
ADC2L
C1
1nF
C2
1nF
LEFT
INPUT NO. 1
LEFT
INPUT NO. 2
CAP1L
INPUT SELECT
250Ω
PGA
–
+
–
+
V
REF
250Ω
MUX
CAP2L
GAIN SELECT
POWER-DOWN
NOTE
ADC2 SINGLE-ENDED MUX PGA INPUT MODE––LEFT CHANNEL ONLY SHOWN.
CONTROL REGISTER 3 CONTENTS: 6 LSBs: SELECT INPUT NO. 1: 11 1010
SELECT INPUT NO. 2: 11 1111
V
REF
Figure 13. Single-Ended MUX/PGA Mode
AD1836A
ADC2L
C1
1nF
C2
1nF
LEFT + VE
INPUT
LEFT – VE
INPUT
CAP1L
–
+
–
+
V
REF
PGA
GAIN SELECT
250Ω
250Ω
CAP2L
NOTE
ADC2 DIFFERENTIAL PGA INPUT MODE—LEFT CHANNEL ONLY SHOWN.
CONTROL REGISTER 3 CONTENTS: 6 LSBs: 00 1010
POWER-DOWN
Figure 14. Differential PGA Mode