AD9235(RevB) データシートの表示（PDF） - Analog Devices

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AD9235
(Rev.:RevB)

12-Bit, 20/40/65 MSPS 3 V A/D Converter

Analog Devices 

AD9235

28-Lead TSSOP

OTR 1

28 D11 (MSB)

MODE 2

27 D10

SENSE 3

26 D9

VREF 4

25 D8

REFB 5

24 DRVDD

AD9235

REFT 6 TOP VIEW 23 DGND

AVDD 7 (Not to Scale) 22 D7

AGND 8

21 D6

VIN+ 9

20 D5

VIN– 10

19 D4

AGND 11

18 D3

AVDD 12

17 D2

CLK 13

16 D1

PDWN 14

15 D0 (LSB)

PIN CONFIGURATION

32-Lead LFCSP

DNC 1

CLK 2

DNC 3

PDWN 4

DNC 5

DNC 6

(LSB)D0 7

D1 8

PIN 1

INDICATOR

AD9235

TOP VIEW

(Not to Scale)

24 VREF

23 SENSE

22 MODE

21 OTR

20 D11(MSB)

19 D10

18 D9

17 D8

Pin Number

28-Lead 32-Lead

TSSOP LFCSP

1

2

3

4

5

6

7, 12

8, 11

9

10

13

14

15–22,

25–28

23

24

21

22

23

24

25

26

27, 32

28, 31

29

30

2

4

7-14,

17-20

15

16

1, 3, 5, 6

Mnemonic

PIN FUNCTION DESCRIPTIONS

Description

OTR

MODE

SENSE

VREF

REFB

REFT

AVDD

AGND

VIN+

VIN–

CLK

PDWN

D0 (LSB)–D11(MSB)

Out-of-Range Indicator.

Data Format and Clock Duty Cycle Stabilizer (DCS) Mode Selection.

Reference Mode Selection.

Voltage Reference Input/Output.

Differential Reference (–).

Differential Reference (+).

Analog Power Supply.

Analog Ground.

Analog Input Pin (+).

Analog Input Pin (–).

Clock Input Pin.

Power-Down Function Selection (Active High).

Data Output Bits.

DGND

DRVDD

DNC

Digital Output Ground.

Digital Output Driver Supply. Must be decoupled to DGND with a minimum

0.1 µF capacitor. Recommended decoupling is 0.1 µF in parallel with 10 µF.

Do Not Connect.

–6–

REV. B

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