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Input

Register

Input

Register

Input

Register

DAC

Register

DAC

Register

DAC

Register

DAC

Register

String

DAC A

String

DAC B

String

DAC C

String

DAC D

Interface

Logic

Power-On

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Buffer

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DAC7554

DAC7554

SLAS399A – OCTOBER 2004 – REVISED NOVEMBER 2004

12-BIT, QUAD, ULTRALOW GLITCH, VOLTAGE OUTPUT

DIGITAL-TO-ANALOG CONVERTER

•

2.7-V to 5.5-V Single Supply

The DAC7554 is a quad-channel, voltage-output DAC

with exceptional linearity and monotonicity. Its pro-

•

12-Bit Linearity and Monotonicity

prietary architecture minimizes undesired transients

•

Rail-to-Rail Voltage Output

such as code to code glitch and channel to channel

•

Settling Time: 5 µs (Max)

crosstalk. The low-power DAC7554 operates from a

•

Ultralow Glitch Energy: 0.1 nVs

single 2.7-V to 5.5-V supply. The DAC7554 output

amplifiers can drive a 2-k

Ω, 200-pF load rail-to-rail

•

Ultralow Crosstalk: –100 dB

with 5-µs settling time; the output range is set using

•

Low Power: 880 µA (Max)

an external voltage reference.

•

Per-Channel Power Down: 2 µA (Max)

The 3-wire serial interface operates at clock rates up

•

Power-On Reset to Zero Scale

to 50 MHz and is compatible with SPI, QSPI,

•

SPI-Compatible Serial Interface: Up to 50 MHz

Microwire, and DSP interface standards. The outputs

of all DACs may be updated simultaneously or

•

Simultaneous or Sequential Update

sequentially. The parts incorporate a power-on-reset

•

Specified Temperature Range: –40

°C to 105°C

circuit to ensure that the DAC outputs power up to

•

Small 10-Lead MSOP Package

zero volts and remain there until a valid write cycle to

the

device

takes

place.

The

parts

contain

a

power-down feature that reduces the current con-

sumption of the device to under 1 µA.

•

Portable Battery-Powered Instruments

•

Digital Gain and Offset Adjustment

The small size and low-power operation makes the

DAC7554 ideally suited for battery-operated portable

•

Programmable Voltage and Current Sources

applications. The power consumption is typically 3.5

•

Programmable Attenuators

mW at 5 V, 1.65 mW at 3 V, and reduces to 1 µW in

•

Industrial Process Control

power-down mode.

The DAC7554 is available in a 10-lead MSOP pack-

age and is specified over –40

°C to 105°C.

FUNCTIONAL BLOCK DIAGRAM

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 © 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.