AD9070

–5–

REV. B

PIN FUNCTION DESCRIPTIONS

Pin Numbers

AD9070BR

AD9070DIP

R Package

D Package

Name

Function

1, 7, 12, 21, 23

1, 7, 9, 14, 21

Negative Power Supply. Nominally –5.0 V.

2, 8, 11, 20, 22

2, 6, 8, 10, 13, 15, 22

GND

Ground.

3

N/A

VREF OUT

Internal Reference Output (–2.5 V typical); Bypass with 0.1

µF to Ground.

4

3

VREF IN

Reference Input for ADC (–2.5 V typical).

5

N/A

COMP

Internal Amplifier Compensation, 0.1

µF to V

6

N/A

REF BYPASS

Reference Bypass Node, 0.1

µF to V

94

AIN

Analog Input – Complement.

10

5

AIN

Analog Input – True.

13

11

ENCODE

Encode Clock for ADC (ADC Samples on Rising Edge of ENCODE).

14

12

ENCODE

Encode Clock Complement (ADC Samples on Falling Edge of

ENCODE).

28–24, 19–15

27–23, 20–16

D9–D0

Digital Outputs of ADC. D9 is the MSB. Data is twos complement.

N/A

28

OR

Out-of-Range Output. Goes HIGH when the converted sample is more

positive than 1FFh or more negative than 200h (Twos Complement Coding).

PIN CONFIGURATIONS

SOIC

Ceramic DIP

14

13

12

11

10

9

8

2

3

4

7

6

5

1

17

16

15

20

19

18

28

27

26

25

24

23

22

21

TOP VIEW

(Not to Scale)

AD9070BR

D9 (MSB)

D8

D7

D6

D5

GND

GND

D4

D3

D2

D1

D0 (LSB)

GND

VREF OUT

VREF IN

COMP

REF BYPASS

GND

AIN

AIN

GND

ENCODE

ENCODE

14

13

12

11

10

9

8

2

3

4

7

6

5

1

17

16

15

20

19

18

28

27

26

25

24

23

22

21

TOP VIEW

(Not to Scale)

AD9070DIP

OR

D9 (MSB)

D8

D7

D6

D5

GND

D4

D3

D2

D1

D0 (LSB)

GND

GND

VREF IN

AIN

AIN

GND

GND

GND

ENCODE

ENCODE

GND