DAC8541

SLAS353 − DECEMBER 2001

16BIT, SINGLE CHANNEL, PARALLEL INPUT DIGITALTOANALOG

CONVERTER WITH RAILTORAIL VOLTAGE OUTPUT

1

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FEATURES

Rail-to-Rail Operation

APPLICATIONS

DESCRIPTION

The DAC8541 is a low-power, single channel, 16-bit,

voltage output DAC. Its on-chip precision output

amplifier allows rail-to-rail voltage swing to be achieved

at the output. The DAC8541 utilizes a 16-bit parallel

interface and features additional powerdown function

pins as well as hardware-enabled, asynchronous DAC

updating and reset capability.

The DAC8541 requires an external reference voltage to

set the output range of the DAC. The device

incorporates a power-on-reset circuit that ensures that

the DAC output powers up at min-scale and remains

there until a valid write takes place to the device. In

addition, the DAC8541 contains a power-down feature,

accessed via two hardware pins, that when enabled

reduces the current consumption of the device to

200 nA at 5 V.

The low power consumption of this device in normal

operation makes it ideally suited for use in portable

battery operated equipment applications. The power

in power-down mode.

The DAC8541 is available in a 32-lead TQFP package

with an operating temperature range of −40

°C to 85°C.

I/O

Buffer

Input

Register

DAC

Register

DAC

Resistor

Network

Power

Down

Control

Logic

Control

Logic

16

AVDD DVDD

VREFH

VOUTSense

VOUT

PD1

PD0

VREFL

LDAC

RST

RSTSEL

AGND

DGND

CS

R/W

BTC/USB

Data I/O

DAC8541

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

 2001, 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.