BurrBrown Products

from Texas Instruments

DAC8554

FEATURES

DESCRIPTION

APPLICATIONS

Data

BufferA

Buffer

Control

18

8

Power-Down

ControlLogic

Resistor

Network

ENABLE

SYNC

LDAC

DAC

RegisterA

DACA

Data

BufferD

DAC

RegisterD

DACD

Register

Control

24-Bit

Serial-to-Parallel

ShiftRegister

SCLK

DIN

V

L

REF

V

H

REF

AVDD

IOVDD

V

A

OUT

V

B

OUT

V

C

OUT

V

D

OUT

A1

A0

DAC8554

SLAS431B – JUNE 2005 – REVISED OCTOBER 2006

16-BIT, QUAD-CHANNEL, ULTRA-LOW GLITCH, VOLTAGE OUTPUT

DIGITAL-TO-ANALOG CONVERTER

• Relative Accuracy: 4LSB

The DAC8554 is a 16-bit, quad-channel, voltage

output, digital-to-analog converter (DAC), offering

• Glitch Energy: 0.15nV-s

low-power operation and a flexible serial host

• MicroPower Operation:

interface. It offers monotonicity, good linearity, and

150

µA per channel at 2.7V

exceptionally low glitch. Each on-chip precision

• Power-On Reset to Zero-Scale

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

achieved over the supply range of 2.7V to 5.5V. The

• Power Supply: +2.7V to +5.5V

device supports a standard 3-wire serial interface

• 16-Bit Monotonic Over Temperature

capable

of

operating

with

input

data

clock

• Settling Time: 10µs to ±0.003% FSR

frequencies up to 50MHz for IOVDD = 5V.

• Ultra-Low AC Crosstalk: –100dB Typ

The DAC8554 requires an external reference voltage

• Low Power SPI™ Compatible Serial Interface

to set the output range of each DAC channel. Also

with Schmitt-Triggered Inputs: Up to 50MHz

incorporated into the device is a power-on reset

circuit which ensures that the DAC outputs power up

• On-Chip Output Buffer Amplifier with

at zero-scale and remain there until a valid write

Rail-to-Rail Operation

takes place. The DAC8554 provides a per channel

• Double Buffered Input Architecture

power-down

feature,

accessed

over

the

serial

• Simultaneous or Sequential Output Update

interface, that reduces the current consumption to

and Power-Down

175nA per channel at 5V.

• 16-Channel Broadcast Capability

The low-power consumption of this device in normal

operation

makes

it

ideally

suited

to

portable

• 1.8V to 5.5V Logic Compatibility

battery-operated equipment and other low-power

• Available in a TSSOP-16 Package

applications. The power consumption is 4.25mW at

5V, reducing to 4

µW in power-down mode.

The DAC8554 is available in a TSSOP-16 package

• Portable Instrumentation

with a specified operating temperature range of

• Closed-Loop Servo-Control

–40

°C to +105°C.

• Process Control

FUNCTIONAL BLOCK DIAGRAM

• Data Acquisition Systems

• Programmable Attenuation

• PC Peripherals

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.

SPI, QSPI are trademarks of Motorola, Inc.

Microwire is a trademark of National Semiconductor.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2006, 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.