AD13280AF(Rev0) 查看數據表（PDF） - Analog Devices

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AD13280AF
(Rev.:Rev0)

Dual Channel, 12-Bit, 80 MSPS A/D Converter with Analog Input Signal Conditioning

Analog Devices 

Pin No.

1, 35

2, 3, 9, 10, 13, 16

4

5

6

7

8

11

12

14

15

17

18, 19, 37, 38

20–25, 28–33

26, 27

34

36

39–42, 45–52

43, 44

53

54, 57, 60, 61, 67, 68

55

56

58

59

62

63

64

65

66

Name

SHIELD

AGNDA

A–IN

A+IN

AMP-OUT-A

AMP-IN-A-1

AMP-IN-A-2

AVEEA

AVCCA

ENCODEA

ENCODEA

DVCCA

NC

D0A–D11A

DGNDA

DROUTA

DROUTB

D0B–D11B

DGNDB

DVCCB

AGNDB

ENCODEB

ENCODEB

AVCCB

AVEEB

AMP-IN-B-2

AMP-IN-B-1

AMP-OUT-B

B+IN

B–IN

AD13280

PIN FUNCTION DESCRIPTIONS

Function

Internal Ground Shield between Channels

A Channel Analog Ground. A and B grounds should be connected as close to

the device as possible.

Inverting Differential Input (Gain = 1).

Noninverting Differential Input (Gain = 1).

Single-Ended Amplifier Output (Gain = 2).

Analog Input for A Side ADC (Nominally ± 0.5 V).

Analog Input for A Side ADC (Nominally ± 1.0 V).

A Channel Analog Negative Supply Voltage (Nominally –5.0 V or –5.2 V).

A Channel Analog Positive Supply Voltage (Nominally 5.0 V).

Complement of Encode; Differential Input.

Encode Input; Conversion Initiated on Rising Edge.

A Channel Digital Positive Supply Voltage (Nominally 5.0 V/ 3.3 V).

No Connect.

Digital Outputs for ADC A. D0 (LSB).

A Channel Digital Ground.

Data Ready A Output.

Data Ready B Output.

Digital Outputs for ADC B. D0 (LSB).

B Channel Digital Ground.

B Channel Digital Positive Supply Voltage (Nominally 5.0 V/ 3.3 V).

B Channel Analog Ground. A and B grounds should be connected as close to the

device as possible.

Encode Input; Conversion Initiated on Rising Edge.

Complement of Encode; Differential Input.

B Channel Analog Positive Supply Voltage (Nominally 5.0 V).

B Channel Analog Negative Supply Voltage (Nominally –5.0 V or –5.2 V).

Analog Input for B Side ADC (Nominally ± 1.0 V).

Analog Input for B Side ADC (Nominally ± 0.5 V).

Single-Ended Amplifier Output (Gain = 2).

Noninverting Differential Input (Gain = 1).

Inverting Differential Input (Gain = 1).

REV. 0

–5–

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