Actual Size

7 mm x 7 mm

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FEATURES

DESCRIPTION

APPLICATIONS

Interface

Logic

Power-On

Reset

Input

Register

Input

Register

DAC

Register

16 Bit

DAC

16 Bit

DAC

Buffer

Buffer

DAC

Register

Power-Down

Logic

D15

D0

CS

LDAC

RST

A0

DAC8544

PD

A1

R/W

DAC8544

SLAS420 – MAY 2004

QUAD, 16-BIT, RAIL-TO-RAIL VOLTAGE OUTPUT, PARALLEL INTERFACE,

DIGITAL-TO-ANALOG CONVERTER

•

Single Supply: +2.7 V to +5.5 V

The DAC8544 is a low-power, quad-channel, 16-bit,

•

Micropower Operation: 950 µA @ 5 V

voltage output DAC. Its on-chip precision output

amplifier allows rail-to-rail voltage

swing

to

be

•

Rail-To-Rail Voltage Output

achieved at the output. The DAC8544 is 16-bit

•

Ultralow Crosstalk: –110 dB

monotonic and offers exceptional absolute accuracy

•

Settling Time: 10 µs To

±0.003% FSR

with ultralow crosstalk. The DAC8544 uses a 16-bit

parallel interface and features additional power-down

•

16-Bit Monotonic

function pins as well as hardware-enabled, synchron-

•

Offset Error:

±0.3 mV

ous DAC updating and reset capability.

•

Gain Error:

±1 mV

The DAC8544 requires an external reference voltage

•

Total Error:

±3 mV

to set the output range of the DAC. The device

•

incorporates a power-on-reset circuit that ensures

•

Logic Compatible: +1.8 V to +5.5 V

that the DAC outputs power up at zero volt and

•

Readback Capability

remains there until a valid write takes place. In

addition, the DAC8544 contains a power-down fea-

•

Double Buffered Inputs

ture, accessed via PD pin, that reduces the current

•

Simultaneous or Sequential Update

consumption of the device to 400 nA at 5 V. The

•

Schmitt-Triggered Digital Inputs

power consumption is typically under 5 mW at

•

Hardware Reset

•

48-Lead TQFP Package

The DAC8544 is available in a 48-lead TQFP pack-

age with an operating temperature range of –40

°C to

+105

°C.

•

Process Control

•

Data Acquisition Systems

•

Closed-Loop Servo Control

•

PC Peripherals

•

Optical Networking

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.