D A C

7 5 1

2

www.ti.com

FEATURES

DESCRIPTION

APPLICATIONS

SCL

A0

GND

Output

Buffer

Power Down

Control Logic

Resistor

Network

Ref (+) REF(-)

12-Bit

DAC

Control

Logic

DAC

Register

Power-On

Reset

SDA

DAC7571

SLAS374A – FEBRUARY 2003 – REVISED JANUARY 2004

+2.7 V to +5.5 V, I

2

C INTERFACE, VOLTAGE OUTPUT, 12-BIT DIGITAL-TO-ANALOG

CONVERTER

•

Micropower Operation: 140 µA @ 5 V

The DAC7571 is a low-power, single 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-Power Supply

achieved. The DAC7571 utilizes an I

•

Specified Monotonic by Design

two wire serial interface that operates at clock rates

•

Settling Time: 10 µs to

±0.003%FS

up to 3.4 Mbps with address support of up to two

•

I

DAC7571s on the same data bus.

•

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

Operation

The DAC7571 incorporates a power-on-reset circuit

•

Double-Buffered Input Register

that ensures that the DAC output powers up at zero

•

Address Support for up to Two DAC7571s

volts and remains there until a valid write to the

device

takes

place.

The

DAC7571

contains

a

•

Small 6 Lead SOT Package

power-down feature, accessed via the internal control

•

Operation From –40

°C to 105°C

register, that reduces the current consumption of the

device to 50 nA at 5 V.

The low power consumption of this part in normal

•

Process Control

operation makes it ideally suited for portable battery

•

Data Acquistion Systems

operated equipment. The power consumption is less

•

Closed-Loop Servo Control

•

PC Peripherals

power-down mode.

•

Portable Instrumentation

The DAC7571 is available in a 6-lead SOT 23

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 © 2003–2004, 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.