SP9604DS/03

SP9604 Quad, 12-Bit, Low Power Voltage Output D/A Converter

© Copyright 2000 Sipex Corporation

1

SP9604

s Low Cost

s Four 12–Bit DAC’s on a Single Chip

s Very Low Power — 30 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 28–pin SOIC and Plastic DIP

Packages

s Either 12 or 8 bit

µP bus

DESCRIPTION

The SP9604 is a very 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 30

µs. The SP9604 is available in 28–pin SOIC and plastic DIP

packages, specified over commercial temperature range.

DAC

DAC

LATCH

LATCH

LATCH

LATCH

8 MSB's

4 LSB's

–

+

–

+

VOUT3

VOUT4

DAC

DAC

LATCH

LATCH

LATCH

LATCH

Ref In

–

+

–

+

VOUT1

VOUT2

A1

CS

WR1 B1/B2 WR2 XFER CLR

A0

CONTROL LOGIC

INPUT

REGISTERS

DAC

REGISTERS

DATA

INPUTS

Quad, 12–Bit, Low Power Voltage

Output D/A Converter

®