AD6640AST(Rev0) Просмотр технического описания (PDF) - Analog Devices

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Компоненты Описание

производитель

AD6640AST
(Rev.:Rev0)

12-Bit, 65 MSPS IF Sampling A/D Converter

Analog Devices 

Pin No.

1, 2, 36, 37, 40, 41

3

4

Name

DVCC

ENCODE

ENCODE

5, 6, 13, 14, 17, 18, 21,

22, 24, 34, 35, 38, 39

7

8

9

GND

AIN

AIN

VREF

10

11, 12, 15, 16, 19, 20

23

25

26–33

42, 43

44

C1

AVCC

NC

D0 (LSB)

D1–D8

D9–D10

D11 (MSB)1

NOTE

1Output coded as twos complement.

AD6640

PIN FUNCTION DESCRIPTIONS

Function

+3.3 V/+5 V Power Supply (Digital). Powers output stage only.

Encode Input. Data conversion initiated on rising edge.

Complement of ENCODE. Drive differentially with ENCODE or bypass to

Ground for single-ended clock mode. See Encoding the AD6640 section.

Ground.

Analog Input.

Complement of Analog Input.

Internal Voltage Reference. Nominally +2.4 V. Bypass to Ground with

0.1 µF + 0.01 µF microwave chip capacitor.

Internal Bias Point. Bypass to ground with 0.01 µF capacitor.

+5 V Power Supply (Analog).

No Connect.

Digital Output Bit (Least Significant Bit).

Digital Output Bits.

Digital Output Bits.

Digital Output Bit (Most Significant Bit).

PIN CONFIGURATION

44 43 42 41 40 39 38 37 36 35 34

DVCC 1

DVCC 2

ENCODE 3

ENCODE 4

GND 5

GND 6

AIN 7

AIN 8

VREF 9

C1 10

AVCC 11

PIN 1

AD6640

TOP VIEW

(Not to Scale)

33 D8

32 D7

31 D6

30 D5

29 D4

28 D3

27 D2

26 D1

25 D0 (LSB)

24 GND

23 NC

12 13 14 15 16 17 18 19 20 21 22

NC = NO CONNECT

REV. 0

–5–

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