AD10265 データシートの表示（PDF） - Analog Devices

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AD10265

Dual Channel, 12-Bit, 65 MSPS A/D Converter with Analog Input Signal Conditioning

Analog Devices 

AD10265

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 16 are internal test pins: it is recommended to connect

34, 35, 55–57

them to GND.

6

AINA1

Analog Input for A side ADC (nominally ± 0.5 V).

7

AINA2

Analog Input for A side ADC (nominally ± 1.0 V).

8

AINA3

Analog Input for A side ADC (nominally ± 2.0 V).

13

AVEE

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

14

AVCC

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

OBSOLETE 17–25,31–33

28

29

30

36–42, 45–49

43, 44, 53, 54,

58–61, 65, 68

50

51

52

62

63

64

66

67

D0A–D11A

ENCODEA

ENCODEA

DVCC

D0B–D11B

GNDB

DVCC

ENCODEB

ENCODEB

AINB1

AINB2

AINB3

AVCC

AVEE

Digital Outputs for ADC A. D0 (LSB).

ENCODE is complement of ENCODE.

Data conversion initiated on rising edge of ENCODE input.

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

Digital Outputs for ADC B. D0 (LSB).

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

as possible.

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

Data conversion initiated on rising edge of ENCODE input.

ENCODE is complement of ENCODE.

Analog Input for B side ADC (nominally ± 0.5 V).

Analog Input for B side ADC (nominally ± 1.0 V).

Analog Input for B side ADC (nominally ± 2.0 V).

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

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

PIN CONFIGURATION

68-Lead Ceramic Leaded Chip Carrier

9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61

GNDA 10

GNDA 11

NC 12

AVEE 13

AVCC 14

NC 15

NC 16

(LSB) D0A 17

D1A 18

D2A 19

D3A 20

D4A 21

D5A 22

D6A 23

D7A 24

D8A 25

GNDA 26

PIN 1

AD10265

TOP VIEW

(Not to Scale)

60 GNDB

59 GNDB

58 GNDB

57 NC

56 NC

55 NC

54 GNDB

53 GNDB

52 ENCODEB

51 ENCODEB

50 DVCC

49 D11B (MSB)

48 D10B

47 D9B

46 D8B

45 D7B

44 GNDB

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

NC = NO CONNECT

REV. A

–5–

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