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SP9504

Quad, 12–Bit, Voltage Output D/A Converter

Signal Processing Technologies 

®

SP9504

Quad, 12–Bit, Voltage Output D/A Converter

s Low Cost

s Four 12–Bit DAC’s on a Single Chip

s Low Power — 80 mW (20mW/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 2MHz 4-Quadrant Multiplying Bandwidth

s 28–pin SOIC and Plastic DIP

Packages

s Either 12 or 8 bit µP bus

DESCRIPTION

The SP9504 is a low power replacement for the popular SP9345, Quad 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

all DACS may be simultaneously updated using a single transfer command. The output settling-

time is specified at 4µs. The SP9504 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

LATCH

LATCH

DAC

REGISTERS

LATCH

LATCH

LATCH

LATCH

Ref In

–

DAC

+

–

DAC

+

–

DAC

+

–

DAC

+

CONTROL LOGIC

VOUT1

VOUT2

VOUT3

VOUT4

A0 A1 CS WR1 B1/B2 WR2 XFER CLR

SP9504DS/03

SP9504 Quad, 12-Bit, Voltage Output D/A Converter

1

© Copyright 2000 Sipex Corporation

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