WM0834, WM0838
Pin Descriptions
WM0834
WM0832
Pin
1
2
Name
NC
CS
Type
Digital
Function
No connection
Chip Select
Pin
1
Name
Type
Analogue input
Function
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
Channel 0 input
to multiplexer (MUX)
Channel 1 input to
multiplexer (MUX)
Channel 2 input to
multiplexer (MUX)
Channel 3 input to
multiplexer (MUX)
Channel 4 input to
multiplexer (MUX)
Channel 5 input to
multiplexer (MUX)
Channel 6 input to
multiplexer (MUX)
Channel 7 input to
multiplexer (MUX)
Common input for
pseudo differential
mode
(active low)
2
3
4
5
6
7
8
9
Analogue input
Analogue input
Analogue input
Analogue input
Analogue input
Analogue input
Analogue input
Analogue input
3
4
5
6
CH0
CH1
CH2
CH3
Analogue input Channel 0 input
to multiplexer (MUX)
Analogue input Channel 1 input
to multiplexer (MUX)
Analogue input Channel 2 input
to multiplexer (MUX)
Analogue input Channel 3 input
to multiplexer (MUX)
7
8
9
DGND Supply
AGND Supply
VREF
Digital ground pin
Analogue ground pin
Analogue input Voltage reference
input
Digital output
Digital output
10
11
DO
SARS
Data output
Successive
approximation
registar status line
Clock input
Data input
Positive supply
voltage
12
13
14
CLK
DI
VCC
Digital input
Digital input
Supply
10 DGND Supply
11 AGND Supply
12 VREF
Digital ground pin
Analogue ground pin
Voltage reference
input
Analogue input
13 SE
Digital input
Shift enable control
line (active low)
Data Output
14 DO
15 SARS
Digital output
Digital output
Successive
approximation
register status line
output
16 CLK
17 DI
18 CS
Digital input
Digital input
Digital
Clock input
Data input
Chip Select
(active low)
19 NC
20 VCC
No connection
Positive supply
voltage
Supply
Multiplexer / Package Options
Number of Analogue Channels
Device
Number of
No
Single Ended
Differential
Package Pins
WM0834
WM0838
4
8
2
4
14
20
Wolfson Microelectronics
9
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
