AD13280AF datasheet(8/28 Pages) AD

No de pièce	AD13280AF

Description	Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning

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Fabricant	AD [Analog Devices]

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AD13280

Rev. C | Page 8 of 28

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

61

62

63

64

65

66

67

68

1

2

3

5

6

7

8

9

4

10

26

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

PIN 1

IDENTIFIER

AD13280

TOP VIEW

(Not to Scale)

D10A

DROUTB

D0B (LSB)

AGNDA

AMP-OUT-A

A+IN

A–IN

AGNDA

AMP-IN-A-2

AMP-IN-A-1

AGNDB

SHIELD

D1B

D2B

D3B

AGNDB

B–IN

B+IN

AGNDB

AMP-IN-B-2

AMP-OUT-B

AMP-IN-B-1

DGNDB

NC

SHIELD

D11A (MSB)

D8A

D9A

D7A

D6A

DGNDA

NC = NO CONNECT

NC

44

45

46

47

48

49

50

51

60 59 58 57 56 55 54 53 52

DROUTA

Figure 3. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 35

SHIELD

Internal Ground Shield Between Channels.

2, 3, 9, 10, 13, 16

AGNDA

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

4

A−IN

Inverting Differential Input (Gain = +1).

5

A+IN

Noninverting Differential Input (Gain = +1).

6

AMP-OUT-A

Single-Ended Amplifier Output (Gain = +2).

7

AMP-IN-A-1

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

8

AMP-IN-A-2

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

11

AVEEA

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

12

AVCCA

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

14

ENCODEA

Complement of ENCODEA. Differential input.

15

ENCODEA

Encode Input. Conversion initiated on rising edge.

17

DVCCA

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

18, 19, 37, 38

NC

No Connect.

20 to 25, 28 to 33

D0A to

D11A

Digital Outputs for ADC A. D0 (LSB).

26, 27

DGNDA

A Channel Digital Ground.

34

DROUTA

Data Ready A Output.

36

DROUTB

Data Ready B Output.

39 to 42, 45 to 52

D0B to

D11B

Digital Outputs for ADC B. D0 (LSB).

43, 44

DGNDB

B Channel Digital Ground.

53

DVCCB

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

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