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SP9602

Dual, 12–Bit, Low Power Voltage Output D/A Converter

Signal Processing Technologies 

SIGNAL PROCESSING EXCELLENCE

SP9602

Dual, 12–Bit, Low Power Voltage

Output D/A Converter

s Low Cost

s Two 12–Bit DAC’s on a Single Chip

s Very Low Power — 16 mW (8mW/DAC)

s Double-Buffered Inputs

s ± 5V Supply Operation

s Voltage Outputs, ± 4.5V Range

s Midscale Preset, Zero Volts Out

s Guaranteed +0.5 LSB Max INL

s Guaranteed +0.75 LSB Max DNL

s 250kHz 4-Quadrant Multiplying Bandwidth

s Separate Reference Inputs

s 28–pin SOIC and Plastic DIP

Packages

s Either 12 or 8 bit µp bus

DESCRIPTION

The SP9602 is a low power, dual 12–Bit Digital-to-Analog Converter. It features +4.5V output

swings when using +5 volt supplies. The converter is double-buffered for easy microprocessor

interface. Each 12–Bit DAC is independently addressable and both DACS may be simulta-

neously updated using a single transfer command. The output settling-time is specified at 30µs.

The SP9602 is available in 28–pin SOIC and plastic DIP packages, specified over commercial

temperature range.

DATA

INPUTS

8 MSB's

4 LSB's

INPUT

REGISTERS

LATCH

LATCH

DAC

REGISTERS

LATCH

LATCH

Ref In Ref In

1

2

–

DAC

+

–

DAC

+

VOUT1

VOUT2

CONTROL LOGIC

A CS WR1 B1/B2 WR2 XFER CLR

SP9602DS/02

SP9602 Dual, 12-Bit, Low Power Voltage Output D/A Converter

1

© Copyright 1999 Sipex Corporation

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