1

All data sheets are subject to change without notice

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12-Bit Buffered Multiplying

7545A

©2001 Maxwell Technologies

All rights reserved.

Digital to Analog Converter

02.05.02 Rev 4

REF

V

V

DD

DGND

AGND

OUT1

DB11-DBO

INPUT DATA LATCHES

DAC

12

12

12-BIT MULTIPYING

R

WR

CS

tion

• Total dose hardness:

- > 100 krad (Si), depending upon space mission

• Excellent single event effects

- SEL

2

- SEU

• Package:

• Low gain temperature coefficient:

• Fast interface timing

• Single +5 V to +15 V supply

Maxwell Technologies’ 7545A is a 12-bit CMOS-buffered mul-

tiplying DAC with internal data latches, which features a

greater than 100 krad (Si) total dose tolerance, depending

upon space mission. The 7545A features a WR pulse width of

100 ns which allows interfacing to a much wider range of fast

8-bit and 16-bit microprocessors. It is loaded by a single 12-bit

wide word under the control of the CS and WR inputs; tying

these control inputs low makes the input latches transparent

allowing unbuffered operation of the DAC. The 7545A is par-

ticularly suitable for single supply operations and applications

with wide temperature variations.

ogy incorporates radiation shielding in the microcircuit pack-

age. It eliminates the need for box shielding while providing

the required radiation shielding for a lifetime in orbit or space

krad (Si) radiation dose tolerance. This product is available

with screening up to Class S.