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AD7545

August 1997

12-Bit, Buffered, Multiplying CMOS DAC

Description

The AD7545 is a low cost monolithic 12-bit, CMOS

multiplying DAC with on-board data latches. Data is loaded

in a single 12-bit wide word which allows interfacing directly

to most 12-bit and 16-bit bus systems. Loading of the input

latches is under the control of the CS and WR inputs. A logic

low on these control inputs makes the input latches transpar-

ent allowing direct unbuffered operation of the DAC.

Features

鈥?12-Bit Resolution

鈥?Low Gain T.C. 2ppm/

o

C (Typ)

鈥?Fast TTL/CMOS Compatible Data Latches

鈥?Single +5V to +15V Supply

鈥?Low Power

鈥?Low Cost

鈥?/883 Processed Versions Available

Ordering Information

PART NUMBER

AD7545JN

AD7545KN

AD7545AN

AD7545BN

TEMP.

RANGE (

o

C)

0 to 70

0 to 70

-40 to 85

-40 to 85

PACKAGE

20 Ld PDIP

20 Ld PDIP

20 Ld PDIP

20 Ld PDIP

PKG.

NO.

E20.3

E20.3

E20.3

E20.3

Pinout

AD7545

(PDIP)

TOP VIEW

Functional Diagram

R

FB

20

AD7545

R

OUT 1

AGND

DGND

1

2

3

4

5

6

7

8

9

20 R

FB

19 V

REF

18 V

DD

17 WR

16 CS

15 DB0 (LSB)

14 DB1

13 DB2

12 DB3

11 DB4

DB11 - DB0

(PINS 4 - 15)

CS 16

12

WR 17

INPUT DATA LATCHES

3

DGND

12

18

V

DD

V

REF

19

12-BIT

MULTIPLYING DAC

1

2

OUT1

AGND

DB11 (MSB)

DB10

DB9

DB8

DB7

DB6

DB5 10

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207

|

Copyright

漏

Intersil Corporation 1999

File Number

3108.1

10-10

next

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