APPLICATIONS

q PROCESS CONTROL

q DATA ACQUISITION SYSTEMS

q CLOSED-LOOP SERVO-CONTROL

q PC PERIPHERALS

q PORTABLE INSTRUMENTATION

q PROGRAMMABLE ATTENUATION

Low-Power, Rail-to-Rail Output, 12-Bit Serial Input

DIGITAL-TO-ANALOG CONVERTER

DESCRIPTION

The DAC7513 is a low-power, single, 12-bit buffered voltage

output Digital-to-Analog Connector (DAC). The on-chip preci-

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

achieved. The DAC7513 uses a versatile 3-wire serial inter-

face that operates at clock rates up to 30MHz and is compat-

faces.

The DAC7513 requires an external reference voltage to set

the output range of the DAC, this allows the DAC7513 to be

used in a multiplying mode. The DAC7513 incorporates a

power-on reset circuit which ensures that the DAC output

powers up at 0V and remains there until a valid write takes

place to the device. The DAC7513 contains a power-down

feature, accessed over the serial interface, that reduces the

current consumption of the device to 200nA at 5V.

The low-power consumption of this part in normal operation

makes it ideally suited to portable battery-operated equip-

ment. The power consumption is 0.5mW at 5V reducing to

1

µW in power-down mode.

The DAC7513 is available in an SOT23-8 package and an

MSOP-8 package.

DAC7513

FEATURES

q microPOWER OPERATION: 115

q POWER-ON RESET TO ZERO

q POWER SUPPLY: +2.7V to +5.5V

q ENSURED MONOTONIC BY DESIGN

q SETTLING TIME: 10

q LOW-POWER SERIAL INTERFACE WITH

SCHMITT-TRIGGERED INPUTS

q ON-CHIP OUTPUT BUFFER AMPLIFIER,

RAIL-TO-RAIL OPERATION

q SYNC INTERRUPT FACILITY

q SOT23-8 AND MSOP-8 PACKAGES

Shift Register

12

DAC Register

12

12-Bit DAC

Ref (+)

Power-Down

Control Logic

Resistor

Network

V

DD

GND

V

OUT

V

FB

SYNC

V

REF

CLK

D

IN

SPI and QSPI are registered trademarks of Motorola.

Microwire is a registered trademark of National Semiconductor.

DAC7513

SBAS157A – OCTOBER 2000 – REVISED MARCH 2003

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 2000, 2003 Texas Instruments Incorporated

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.