MP8798AS 查看數據表（PDF） - Exar Corporation

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MP8798AS

CMOS Very Low Power, 1 MSPS 10-Bit Analog-to-Digital Converter with 4-Channel Mux

Exar Corporation 

PIN OUT DEFINITIONS

PIN NO. NAME

1

DB3

2

DB4

3

DB5

4

DB6

5

DB7

6

DGND

7

DVDD

8

WR

9

A1

10 A0

11

CLK

12 DB8

13 DB9

14 OFW

DESCRIPTION

Data Output Bit 3

Data Output Bit 4

Data Output Bit 5

Data Output Bit 6

Data Output Bit 7

Digital Ground

Digital VDD

Write (Active Low)

Address 1 Input

Address 0 Input

Clock Input

Data Output Bit 8

Data Output Bit 9 (MSB)

Overflow Output

MP8798

PIN NO. NAME

15

VREF(+)

16

VREF(–)

17

VREF1(–)

18 1/2 R

19

AIN1

20

AIN2

21

AIN3

22

AIN4

23 AGND

24

AVDD

25 PD

26 DB0

27 DB1

28 DB2

DESCRIPTION

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

Analog VDD

Power Down

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

0

1

0

1

0

0

1

1

1

X

X

AIN1

AIN2

AIN3

AIN4

Previous selection

Note: WR, A1, A0 are internally connected to GND through

500kΩ resistance.

Rev. 3.00

3

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