MP8798
PIN OUT DEFINITIONS
PIN NO.
NAME
DESCRIPTION
PIN NO.
NAME
DESCRIPTION
1
DB3
Data Output Bit 3
15
16
17
18
19
20
21
22
23
24
25
26
27
28
V
Upper Reference Voltage
Lower Reference Voltage
Lower Reference Voltage
Reference Ladder Tap
Analog Signal Input 1
Analog Signal Input 2
Analog Signal Input 3
Analog Signal Input 4
Analog Ground
REF(+)
REF(–)
REF1(–)
2
DB4
Data Output Bit 4
Data Output Bit 5
Data Output Bit 6
Data Output Bit 7
Digital Ground
V
V
3
DB5
4
DB6
1/2 R
5
DB7
A
IN1
A
IN2
A
IN3
A
IN4
6
DGND
7
DV
Digital V
DD
DD
8
WR
A1
Write (Active Low)
Address 1 Input
Address 0 Input
Clock Input
9
AGND
AV
10
11
12
13
14
A0
Analog V
DD
DD
CLK
DB8
DB9
OFW
PD
Power Down
Data Output Bit 8
Data Output Bit 9 (MSB)
Overflow Output
DB0
DB1
DB2
Data Output Bit 0 (LSB)
Data Output Bit 1
Data Output Bit 2
TRUTH TABLE FOR INPUT CHANNEL SELECTION
WR
A1
A0
SELECTED ANALOG INPUT
0
0
0
0
1
0
0
1
1
X
0
1
0
1
X
A
A
A
A
IN1
IN2
IN3
IN4
Previous selection
Note: WR, A1, A0 are internally connected to GND through
500kΩ resistance.
Rev. 3.00
3
EXAR [ EXAR CORPORATION ]
