DAC

GND

DAC7760

DAC8760

AV

DD

DV

AV

SS

DV

DD

Pre-

Conditioning

Current

Source

I

ENABLE

ISET-R

I

GAIN

V

GAIN

V

ENABLE

Current Output Stage

Voltage Output Stage

Watchdog

Timer

Slew Rate

Control

User Calibration

Gain/Offset

Register

DAC Input

Register

Thermal

Shutdown

Internal

Reference

CMP

–

V

SENSE

+V

SENSE

V

OUT

I

OUT

ALARM

BOOST

REFOUT

REFIN

HART

IN

LATCH

SCLK

DIN

SDO

CLR

CLR-SEL

DAC7760

DAC8760

www.ti.com

SBAS528 – JUNE 2013

Single-Channel, 12- and 16-Bit Programmable Current Output and Voltage Output

Digital-to-Analog Converter for 4-mA to 20-mA Current Loop Applications

Check for Samples: DAC7760, DAC8760

1

FEATURES

DESCRIPTION

The DAC7760 and DAC8760 are low-cost, precision,

23

•

Output Current: 4 mA to 20 mA;

fully-integrated, 12-bit and 16-bit digital-to-analog

0 mA to 20 mA; 0 mA to 24 mA

converters

(DACs)

designed

to

meet

the

•

Voltage Output:

requirements

of

industrial

process

control

–

0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V

applications. The output can be programmed as a

current output with a range of 4 mA to 20 mA, 0 mA

–

0 V to 5.5 V; 0 V to 11 V; ±5.5 V; ±11 V

to 20 mA, or 0 mA to 24 mA; or the output can be

(10% Overrange)

programmed as a voltage output with a range of 0 V

•

±0.1% FSR Total Unadjusted Error (TUE) Max

to 5 V, 0 V to 10 V, ±5 V, or ±10 V, with a 10%

•

DNL: ±1 LSB Max

overrange.

•

Simultaneous Voltage and Current Output

A user calibration can be performed on the zero and

gain registers to calibrate the device in the end

•

Internal 5-V Reference (10 ppm/°C, max)

system. The output slew rate is also programmable

•

Internal 4.5-V Power-Supply Generator

via register. These devices include a power-on-reset

•

function to ensure that the device powers up in a

•

Reliability Features:

a Hi-Z state). The CLR and CLR-SEL pins set the

–

CRC and Frame Error Check

voltage outputs to zero-scale or midscale and the

–

Watchdog Timer

current output to the low end of the range if output is

–

Thermal Alarm

enabled. These devices are implemented with a

HART signal interface to superimpose an external

–

Open, Compliance Alarm, Short Current

HART signal on the current output and can operate

Limit

with either a single +10-V to +36-V supply, or dual

–

On-Chip Fault Alarm

supplies of up to ±18 V. All versions are available in

•

Wide Temperature Range: –40°C to +125°C

both

6-mm

×

6-mm

QFN-40

and

TSSOP-24

packages.

•

6-mm × 6-mm QFN-40 and TSSOP-24

Packages

RELATED DEVICES

CURRENT AND

CURRENT

APPLICATIONS

RESOLUTION (Bits)

VOLTAGE OUTPUT

OUTPUT

12

DAC7760

DAC7750

•

4-mA to 20-mA Current Loops

16

DAC8760

DAC8750

•

Analog Output Modules

•

Programmable Logic Controllers (PLCs)

•

Sensors and Transducers

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

HART is a registered trademark of the HART Communication Foundation.

3

All other trademarks are the property of their respective owners.

PRODUCT PREVIEW information concerns products in the

Copyright © 2013, Texas Instruments Incorporated

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.