LTC7545AB View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC7545AB

Improved Industry Standard Parallel 12-Bit Multiplying DAC

Linear Technology 

TYPICAL APPLICATIONS N

Unipolar Operation (2-Quadrant Multiplication)

VREF

–10V TO 10V

5V OR 15V

0.1µF

18 19 20

VDD VREF RFB

µP

17 WR

16

CS

1

LTC7545A OUT1

2

AGND

DB11 to DB0 DGND

4–15

3

33pF

–

LT1097

+

LTC7545A

VOUT

0V TO – VREF

7545A TA03

Table 1. Unipolar Binary Code Table

DIGITAL INPUT

BINARY NUMBER

IN DAC LATCH

MSB

LSB

ANALOG OUTPUT

VOUT

1111 1111 1111 – VREF (4095/4096)

1000 0000

0000 0000

0000

0001

– VREF (2048/4096) = – VREF/2

– VREF (1/4096)

0000 0000 0000 0V

5

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