Corporation

SIGNAL PROCESSING EXCELLENCE

159

DESCRIPTION…

The SP7514 and HS3140 are precision 14-bit multiplying DACs, that provide four-quadrant

multiplication. Both parts accept both AC and DC reference voltages. The SP7514 is available

for use in commercial and industrial temperature ranges, packaged in a 20-pin SOIC. The

HS3140 is available in commercial and military temperature ranges, packaged in a 20-pin

side-brazed DIP.

s Monolithic Construction

s 14–Bit Resolution

s 0.003% Non-Linearity

s Four-Quadrant Multiplication

s Latch-up Protected

s Low Power - 30mW

s Single +15V Power Supply

96k

96k

48k

6k

20

17

SWITCHES ARE

SHOWN IN THE

HIGH STATE

1

I OUT1

R FEEDBACK

BIT 14

LSB

7

6

5

4

BIT 1

(MSB)

BIT 2 BIT 3

BIT 4

4 to 16 DECODE

3

18

GND

VDD

VREF

19

15 EQUAL

SECTIONS

2

I OUT2

96k

96k

SP7514

SP7514, HS3140

Corporation

SIGNAL PROCESSING EXCELLENCE

SP7514 and HS3140

14-Bit Multiplying DACs