DAC128S085CIMTX+ National Semiconductor, DAC128S085CIMTX+ Datasheet

DAC128S085CIMTX+

Manufacturer Part Number

DAC128S085CIMTX+

Description

Manufacturer

National Semiconductor

Datasheets

1.DAC128S085EB.pdf (24 pages)

2.DAC128S085CIMTX.pdf (26 pages)

Specifications of DAC128S085CIMTX+

Notes

NEW

Date_code

10+

Current page: 1 of 24
Download datasheet (532Kb)

DAC128S085

12-Bit Micro Power OCTAL Digital-to-Analog Converter

with Rail-to-Rail Outputs

General Description

The DAC128S085 is a full-featured, general purpose OCTAL

12-bit voltage-output digital-to-analog converter (DAC) that

can operate from a single +2.7V to +5.5V supply and con-

sumes 1.95 mW at 3V and 4.85 mW at 5V. The DAC128S085

is packaged in a 16-lead LLP package and a 16-lead TSSOP

package. The LLP package makes the DAC128S085 the

smallest OCTAL DAC in its class. The on-chip output ampli-

fiers allow rail-to-rail output swing and the three wire serial

interface operates at clock rates up to 40 MHz over the entire

supply 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 standard SPI ™ , QSPI,

MICROWIRE and DSP interfaces. The DAC128S085 also of-

fers daisy chain operation where an unlimited number of

DAC128S085s can be updated simultaneously using a single

serial interface.

There are two references for the DAC128S085. One refer-

ence input serves channels A through D while the other

reference serves channels E through H. Each reference can

be set independently between 0.5V and V

widest possible output dynamic range. The DAC128S085 has

a 16-bit input shift register that controls the mode of operation,

the power-down condition, and the DAC channels' register/

output value. All eight DAC outputs can be updated simulta-

neously or individually.

A power-on reset circuit ensures that the DAC outputs power

up to zero volts and remain there until there is a valid write to

the device. The power-down feature of the DAC128S085 al-

lows each DAC to be independently powered with three dif-

ferent termination options. With all the DAC channels

powered down, power consumption reduces to less than 0.3

µW at 3V and less than 1 µW at 5V. The low power consump-

tion and small packages of the DAC128S085 make it an

excellent choice for use in battery operated equipment.

The DAC128S085 is one of a family of pin compatible DACs,

including the 8-bit DAC088S085 and the 10-bit DAC108S085.

All three parts are offered with the same pinout, allowing sys-

tem designers to select a resolution appropriate for their

application without redesigning their printed circuit board. The

DAC128S085 operates over the extended industrial temper-

ature range of −40°C to +125°C.

Ordering Information

SPI ™ is a trademark of Motorola, Inc.

DAC128S085CISQ

DAC128S085CISQX

DAC128S085CIMT

DAC128S085CIMTX

DAC128S085EB

Order Numbers

−40°C

Temperature Range

300169

≤

, providing the

≤

+125°C

Features

■

Key Specifications

■

Applications

■

Guaranteed Monotonicity

Low Power Operation

Rail-to-Rail Voltage Output

Daisy Chain Capability

Power-on Reset to 0V

Simultaneous Output Updating

Individual Channel Power Down Capability

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

Dual Reference Voltages with range of 0.5V to V

Operating Temperature Range of −40°C to +125°C

Industry's Smallest Package

Resolution

INL

DNL

Settling Time

Zero Code Error

Full-Scale Error

Supply Power

— Normal

— Power Down

Battery-Powered Instruments

Digital Gain and Offset Adjustment

Programmable Voltage & Current Sources

Programmable Attenuators

Voltage Reference for ADCs

Sensor Supply Voltage

Range Detectors

Evaluation Board - BOTH

TSSOP Tape-and-Reel

LLP Tape-and-Reel

16-Lead TSSOP

16-Lead LLP

Package

1.95 mW (3V) / 4.85 mW (5V) typ

0.3 µW (3V) / 1 µW (5V) typ

+0.75 / −0.4 LSB (max)

Top Mark

−0.75 %FSR (max)

X78C

September 2007

+15 mV (max)

www.national.com

±8 LSB (max)

8.5 µs (max)

12 bits

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