Serial Interface

Shift Register

Control

Logic

SCLK

DAC

Latch

DAC

SDIN

AVSS

DVDD

GND

VREF

VOUT

AVDD

DAC8581

CS

CLR

DAC8581

DAC8581

www.ti.com

SLAS481C – AUGUST 2005 – REVISED OCTOBER 2012

16-BIT, HIGH-SPEED, LOW-NOISE, VOLTAGE OUTPUT

DIGITAL-TO-ANALOG CONVERTER

Check for Samples: DAC8581

1

FEATURES

APPLICATIONS

23

•

16-Bit Monotonic

•

Industrial Process Control

•

±5-V Bipolar Output

•

CRT Projection TV Digital Convergence

•

Very Low Glitch: 0.5 nV-s

•

Waveform Generation

•

Fast Settling: 0.65

μs

•

Automated Test Equipment

•

Fast Slew Rate: 35 V/

μs

•

Ultrasound

DESCRIPTION

•

Low Noise: 20 nV/

√Hz

The DAC8581 is a 16-bit, high-speed, low-noise DAC

•

±25-mA Load Drive

operating from dual ±5-V power supplies. The

•

±5-V Dual Power Supply

DAC8581 is monotonic, and has exceptionally low

•

Single External Reference

noise and exceptionally low glitch. The DAC8581

high-performance, bipolar output buffer is capable of

•

Power-On Reset to Midscale

settling within 0.65

μs for a 10-V step. Small-signal

•

3-MSPS Update Rate

settling time is well under 0.3

μs, supporting data

•

SPI™ Interface, Up to 50 MHz

update rates up to 3 MSPS. A power-on-reset circuit

sets the output at midscale voltage on power up.

•

1.8-V–5-V Logic Compatible

•

Twos Complement Data Format

The DAC8581 is simple to use, with a single external

reference and a standard 3-wire SPI interface that

•

Hardware Reset to Midscale

allows clock rates up to 50 MHz.

•

TSSOP-16 Package

Also see the DAC8580, a member of the same

family.

The

DAC8580

combines

DAC8581

performance with an on-chip, 16x over-sampling

digital filter.

The DAC8581 is specified over the –40°C to +85°C

temperature range.

space

FUNCTIONAL BLOCK DIAGRAM OF DAC8581

1

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.

2

SPI is a trademark of Motorola.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2012, 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.

Not Recommended For New Designs