AD10242

–5–

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

87

65

67 66 65 64 63 62

43

21

68

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

NC = NO CONNECT

AD10242

GNDA

GNDA

UPOSA

NC

NC

(LSB) D0A

D1A

D2A

D3A

D4A

D5A

D6A

D7A

D8A

GNDA

GNDB

GNDB

GNDB

UPOSB

UNEGB

UCOMB

GNDB

GNDB

ENCODEB

ENCODEB

D11B (MSB)

D10B

D9B

D8B

D7B

GNDB

PIN CONFIGURATION

68-Lead Ceramic Leaded Chip Carrier

PIN FUNCTION DESCRIPTIONS

Pin No.

Mnemonic

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

UNEGA

Unipolar Negative.

4

UCOMA

Unipolar Common.

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).

12

UPOSA

Unipolar Positive.

13

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

14

Analog Positive Supply Voltage (Nominally 5.0 V).

15, 16, 34, 35

NC

No Connect.

17–25, 31–33

D0A–D11A

Digital Outputs for ADC A. (D0 LSB.)

28

ENCODEA

ENCODE is the complement of ENCODE.

29

ENCODEA

Data conversion is initiated on the rising edge of the ENCODE input.

30, 50

Digital Positive Supply Voltage (Nominally 5.0 V).

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.

51

ENCODEB

Data conversion is initiated on the rising edge of the ENCODE input.

52

ENCODEB

ENCODE is the complement of ENCODE.

55

UCOMB

Unipolar Common.

56

UNEGB

Unipolar Negative.

57

UPOSB

Unipolar Positive.

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).

67

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

REV. D