Datasheet

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PIN CONFIGURATION
1
2
3
4
8
7
6
5
+V
CC
DCLOCK
D
OUT
CS/SHDN
V
REF
+In
-In
GND
ADS7822
ADS7822
SBAS062C – JANUARY 1996 – REVISED AUGUST 2007
D, DGK, OR P PACKAGE
SO, MSOP, or DIP
(TOP VIEW)
PIN ASSIGNMENTS
PIN
DESCRIPTION
NAME NO.
V
REF
1 Reference input
+In 2 Noninverting input
– In 3 Inverting input. Connect to ground or to remote ground sense point.
GND 4 Ground
CS/SHDN 5 Chip select when low; Shutdown mode when high.
The serial output data word is comprised of 12 bits of data. In operation, the data are valid on the falling edge of DCLOCK. The
D
OUT
6
second clock pulse after the falling edge of CS enables the serial output. After one null bit, the data are valid for the next edges.
DCLOCK 7 Data clock synchronizes the serial data transfer and determines conversion speed.
+V
CC
8 Power supply
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