®

DAC853

4

www.ti.com

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

SCL

SDA

LDAC

DAC8574

SLAS377B – JANUARY 2003 – REVISED DECEMBER 2004

QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT,

I

2

C INTERFACE DIGITAL-TO-ANALOG CONVERTER

•

The DAC8574 is a low-power, quad channel, 16-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 DAC8574 utilizes an I

•

16-Bit Monotonic

two

wire

serial

interface

supporting

high-speed

•

Settling Time: 10µs to

±0.003% FSR

interface mode with address support of up to sixteen

•

I

DAC8574s for a total of 64 channels on the bus.

•

Data Transmit Capability

The DAC8574 requires an external reference voltage

•

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

to set the output range of the DAC. The DAC8574

Operation

incorporates a power-on-reset circuit that ensures

•

Double-Buffered Input Register

that the DAC output powers up at zero volts and

remains there until a valid write takes place to the

•

Address Support for up to Sixteen DAC8574s

device. The DAC8574 contains a power-down fea-

•

Synchronous Update Support for up to 64

ture, accessed via the internal control register, that

Channels

reduces the current consumption of the device to 200

•

Operation From –40

°C to 105°C

nA at 5 V.

•

Small 16-Lead TSSOP Package

The low power consumption of this part in normal

operation makes it ideally suited to portable battery

operated equipment. The power consumption is less

•

Process Control

power-down mode.

•

Data Acquisition Systems

•

Closed-Loop Servo Control

The DAC8574 is available in a 16-lead TSSOP

•

PC Peripherals

package.

•

Portable Instrumentation

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 © 2003–2004, 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.