BurrBrown Products

from Texas Instruments

FEATURES

DESCRIPTION

APPLICATIONS

DAC

Register D

Data

Buffer A

DAC

Register A

DAC A

Data

Buffer D

DAC D

Buffer

Control

Register

Control

24-Bit

Serial-to-

Parallel Shift

Register

18

8

Power-Down

Control Logic

Resistor

Network

ENABLE

LDAC

A1

A0

SYNC

SCLK

DAC8554

SLAS431A – JUNE 2005 – REVISED AUGUST 2005

16-BIT, QUAD CHANNEL, ULTRALOW GLITCH, VOLTAGE OUTPUT

DIGITAL-TO-ANALOG CONVERTER

•

Relative Accuracy: 12 LSB (Max)

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

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

•

Glitch Energy: 0.15 nV-s

low-power

operation

and

a

flexible

serial

host

•

Power Supply: +2.7 V to +5.5 V

interface. It offers monotonicity, good linearity, and

•

MicroPower Operation: 850 µA at 5 V

exceptionally low glitch. Each on-chip precision out-

•

16-Bit Monotonic Over Temperature

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

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

•

Settling Time: 10 µs to

±0.003% FSR

device supports a standard 3-wire serial interface

•

Ultra-Low AC Crosstalk: –100 dB Typ

capable of operating with input data clock frequencies

•

Power-On Reset to Zero-Scale

•

On-Chip Output Buffer Amplifier With

The DAC8554 requires an external reference voltage

Rail-to-Rail Operation

to set the output range of each DAC channel. Also

incorporated into the device is a power-on reset

•

Double Buffered Input Architecture

circuit which ensures that the DAC outputs power up

•

Simultaneous or Sequential Output Update

at zero-scale and remain there until a valid write

and Power-Down

takes place. The DAC8554 provides a per channel

•

16-Channel Broadcast Capability

power-down

feature,

accessed

over

the

serial

interface, that reduces the current consumption to

•

Schmitt-Triggered Inputs

200 nA per channel at 5 V.

•

SPI Compatible Serial Interface: Up to 50 MHz

The low-power consumption of this device in normal

•

1.8 V to 5.5 V Logic Compatibility

operation makes it ideally suited to portable battery-

•

Available in a TSSOP-16 Package

operated equipment and other low-power appli-

cations. The power consumption is 4.25 mW at 5 V,

reducing to 4 µW in power-down mode.

•

Portable Instrumentation

The DAC8554 is available in a TSSOP-16 package

•

Closed-Loop Servo-Control

with a specified operating temperature range of

•

Process Control

–40

°C to 105°C.

•

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.

Microwire is a trademark of National Semiconductor.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005, 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.