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FEATURES

DESCRIPTION

APPLICATIONS

Resistor

Network

8

18

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

A2

A3

GND

Block

SCL

SDA

LDAC

DAC7573

SLAS398 – SEPTEMBER 2003

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

I

2

C INTERFACE DIGITAL-TO-ANALOG CONVERTER

•

The DAC7573 is a low-power, quad channel, 12-bit

•

Power-On Reset to Zero

buffered voltage output DAC. Its on-chip precision

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

•

+2.7-V to +5.5-V Analog Power Supply

achieved. The DAC7573 utilizes an I

•

12-Bit Monotonic

two

wire

serial

interface

supporting

high-speed

•

I

interface mode with address support of up to sixteen

•

Data Transmit Capability

DAC7573s for a total of 64 channels on the bus.

•

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

The DAC7573 requires an external reference voltage

Operation

to set the output range of the DAC. The DAC7573

•

Double-Buffered Input Register

incorporates a power-on-reset circuit that ensures

•

Address Support for up to Sixteen DAC7573s

that the DAC output powers up at zero volts and

remains there until a valid write takes place in the

•

Synchronous Update Support for up to 64

device. The DAC7573 contains a power-down fea-

Channels

ture, accessed via the internal control register, that

•

Operation From –40

°C to 105°C

reduces the current consumption of the device to 200

•

Small 16 Lead TSSOP Package

nA at 5 V.

The low power consumption of this part in normal

operation makes it ideally suited to portable battery

•

Process Control

operated equipment. The power consumption is less

•

Data Acquisition Systems

power-down mode.

•

Closed-Loop Servo Control

•

PC Peripherals

The DAC7573 is available in a 16-lead TSSOP

•

Portable Instrumentation

package.

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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.