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Resistor

Network

8

14

Data

Buffer A

DAC

Register A

Data

Buffer D

DAC

Register D

DAC A

DAC D

Buffer

Control

Register

Control

Power-Down

Control Logic

A0

A1

GND

SCL

SDA

DAC7574

SLAS375 – JUNE 2003

QUAD, 12-BIT, LOW-POWER, VOLTAGE OUTPUT,

FEATURES

DESCRIPTION

•

The DAC7574 is a low-power, quad channel, 12-bit

•

Power-On Reset to Zero

buffered voltage output DAC. Its on-chip precision out-

put amplifier allows rail-to-rail output swing to be

•

+2.7 V to +5.5 V Analog Power Supply

•

12-Bit Monotonic

wire serial interface supporting high-speed interface

•

mode with address support of up to four DAC7574s for

a total of 16 channels on the bus.

•

Data Transmit Capability

•

On-Chip Output Buffer Amplifier, Rail-to-Rail

Operation

range of the DAC. The DAC7574 incorporates a

•

Double-Buffered Input Register

power-on-reset circuit that ensures that the DAC output

powers up at zero volts and remains there until a valid

•

Address Support for up to Four DAC7574s

write takes place to the device. The DAC7574 contains

•

Synchronous Update Support for up to 16

a power-down feature, accessed via the internal control

Channels

register, that reduces the current consumption of the

•

Operation From -40

°C to 105°C

device to 200 nA at 5 V.

•

Small 10 Lead MSOP Package

The low power consumption of this part in normal

operation makes it ideally suited to portable battery

APPLICATIONS

operated equipment. The power consumption is less

•

Process Control

mode.

•

Data Acquisition Systems

The DAC7574 is available in a 10-lead MSOP package.

•

Closed-Loop Servo Control

•

PC Peripherals

•

Portable Instrumentation

I2C is a trademark of Philips Corporation.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2003, Texas Instruments Incorporated

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily in-

clude testing of all parameters.