AD10265

–5–

REV. 0

PIN FUNCTION DESCRIPTIONS

Pin No.

Name

Function

1

SHIELD

Internal Ground Shield between channels.

2, 5, 9–11, 26, 27

GNDA

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

3, 4, 12, 15, 16,

NC

No Connect. Pins 15 and 17 are internal test pins: it is recommended to connect them to

34, 35, 55–57

GND

Analog Input for A side ADC (nominally

±0.5 V).

Analog Input for A side ADC (nominally

±1.0 V).

Analog Input for A side ADC (nominally

±2.0 V).

13

Analog Negative Supply Voltage (nominally –5.0 V). For A side ADC.

14

Analog Positive Supply Voltage (nominally +5.0 V). For A side ADC.

17–25, 31–33

D0A–D11A

Digital Outputs for ADC A. D0 (LSB).

28

ENCODEA

ENCODE is complement of ENCODE.

29

ENCODEA

Data conversion initiated on rising edge of ENCODE input.

30

Digital positive supply voltage (nominally +3.3 V) for A side ADC.

36–42, 45–49

D0B–D11B

Digital Outputs for ADC B. D0 (LSB).

43, 44, 53, 54,

GNDB

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

58–61, 65, 68

as possible.

50

Digital Positive Supply Voltage (nominally +3.3 V) for B side ADC.

51

ENCODEB

Data conversion initiated on rising edge of

ENCODE input.

52

ENCODEB

ENCODE is complement of ENCODE.

62

Analog Input for B side ADC (nominally

±0.5 V).

63

Analog Input for B side ADC (nominally

±1.0 V).

64

Analog Input for B side ADC (nominally

±2.0 V).

66

Analog Positive Supply Voltage (nominally +5.0 V). For B side ADC.

67

Analog Negative Supply Voltage (nominally –5.0 V). For B side ADC.

PIN CONFIGURATION

68-Lead Leaded Ceramic Chip Carrier

10

11

12

13

14

15

16

17

18

19

20

22

23

24

25

26

21

27

43

28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

961

8

7

6

5

68 67 66 65 64 63 62

432

1

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

TOP VIEW

(Not to Scale)

GNDB

GNDB

GNDB

NC

NC

NC

GNDB

GNDB

ENCODEB

ENCODEB

D11B (MSB)

D10B

D9B

D8B

D7B

GNDB

GNDA

GNDA

NC

NC

NC

(LSB) D0A

D1A

D2A

D3A

D4A

D5A

D6A

D7A

D8A

GNDA

NC = NO CONNECT

AD10265

PIN 1