FUNCTIONAL DIAGRAM

Low Power, W ide

Temperature Range D ACs

D AC347

D ata Converter Line

FEATURES

• 10- and 12-bit models

• V ery low power: less than 300 mW

• W ide operating temperature range:

-55 C to +125 C

• M IL-STD-883 Rev. C, Level B or commercial

processing

• 18 pin hermetic package

DESCRIPTION

This Series is specifically designed and tested for low

power operation. The models feature low total

power dissipation of less than 300 mW . Each unit

incorporates a pretrimmed output amplifier and a

low power internal reference.

The DA C347 Series are high performance, general

purpose, digital to analog converters utilizing

matched CM OS current switches and ultra stable thin-

film nichrome resistor networks. A ll DA C347 Series

models provide optimum stability in performance

over the full –55ºC to + 125ºC temperature range.

Unipolar models use complementary binary coding

and bipolar models use complementary offset binary

coding. Each DA C347 Series converter comes

packaged in a hermetically sealed 18-pin package,

ideal for applications where maximum performance

in minimum space is required.

+15V

– 15V

GND

GA IN

A DJ

9

10

11

7

R

R

R

R = 25k

2R

2R

2R

2R

2R

“ 1”

“ 1”

“ 0”

“ 0”

V OLTA GE

REFERENCE

FOR BIPOLA R

M ODELS

R

–

+

S1

S2

S3

S12

1

2

3

18

8

BIT 1

(M SB)

BIT 12

(LSB)

OFFSET

A DJ

BIT 2

BIT 3

12

OUTPUT

165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168

www.SpectrumMicrowave.com

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