DAC108S085

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SNAS423B – AUGUST 2007 – REVISED MARCH 2013

DAC108S085 10-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail

Outputs

Check for Samples: DAC108S085

1

FEATURES

DESCRIPTION

The DAC108S085 is a full-featured, general purpose

23

•

Ensured Monotonicity

OCTAL

10-bit

voltage-output

digital-to-analog

•

Low Power Operation

converter (DAC) that can operate from a single +2.7V

•

Rail-to-Rail Voltage Output

to +5.5V supply and consumes 1.95 mW at 3V and

4.85 mW at 5V. The DAC108S085 is packaged in a

•

Daisy Chain Capability

16-lead WQFN package and a 16-lead TSSOP

•

Power-on Reset to 0V

package.

The

WQFN

package

makes

the

•

Simultaneous Output Updating

DAC108S085 the smallest OCTAL DAC in its class.

The on-chip output amplifiers allow rail-to-rail output

•

Individual Channel Power Down Capability

swing and the three wire serial interface operates at

•

Wide power supply range (+2.7V to +5.5V)

clock rates up to 40 MHz over the entire supply

•

Dual Reference Voltages with Range of 0.5V to

voltage range. Competitive devices are limited to 25

MHz clock rates at supply voltages in the 2.7V to

3.6V range. The serial interface is compatible with

•

Operating Temperature Range of

−40°C to

standard

SPI™,

QSPI,

MICROWIRE

and

DSP

+125°C

interfaces. The DAC108S085 also offers daisy chain

•

Industry's Smallest Package

operation

where

an

unlimited

number

of

DAC108S085s can be updated simultaneously using

APPLICATIONS

a single serial interface.

•

Battery-Powered Instruments

There are two references for the DAC108S085. One

•

Digital Gain and Offset Adjustment

reference input serves channels A through D while

the other reference serves channels E through H.

•

Programmable Voltage & Current Sources

Each reference can be set independently between

•

Programmable Attenuators

•

Voltage Reference for ADCs

dynamic range. The DAC108S085 has a 16-bit input

shift register that controls the mode of operation, the

•

Sensor Supply Voltage

power-down

condition,

and

the

DAC

channels'

•

Range Detectors

register/output value. All eight DAC outputs can be

updated simultaneously or individually.

KEY SPECIFICATIONS

A power-on reset circuit ensures that the DAC

•

Resolution: 10 Bits

outputs power up to zero volts and remain there until

•

INL: ±2 LSB (Max)

there is a valid write to the device. The power-down

feature of the DAC108S085 allows each DAC to be

•

DNL: +0.35/-0.2 LSB (Max)

independently

powered

with

three

different

•

Settling Time: 6 µs (Max)

termination options. With all the DAC channels

•

Zero Code Error : +15mV (Max)

powered down, power consumption reduces to less

than 0.3 µW at 3V and less than 1 µW at 5V. The low

•

Full-Scale Error: -0.75% FSR (Max)

power consumption and small packages of the

•

Supply Power

DAC108S085 make it an excellent choice for use in

–

Normal: 1.95 mW (3V)/4,85 mW (5V) (Typ)

battery operated equipment.

–

Power Down: 0.3 µW (3V)/1 W (5V) (Typ)

1

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.

2

SPI is a trademark of Motorola, Inc..

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, 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.