DAC124S085CIMMNOPB National Semiconductor, DAC124S085CIMMNOPB Datasheet

DAC124S085CIMMNOPB

Manufacturer Part Number

DAC124S085CIMMNOPB

Description

SOIC14

Manufacturer

National Semiconductor

Datasheet

1.DAC124S085CIMMNOPB.pdf (20 pages)

Specifications of DAC124S085CIMMNOPB

Date_code

09+

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DAC124S085

12-Bit Micro Power QUAD Digital-to-Analog Converter with

Rail-to-Rail Output

General Description

The DAC124S085 is a full-featured, general purpose QUAD

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

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

1.1 mW at 3V and 2.4 mW at 5V. The DAC124S085 is pack-

aged in 10-lead LLP and MSOP packages. The 10-lead LLP

package makes the DAC124S085 the smallest QUAD DAC

in its class. The on-chip output amplifier allows rail-to-rail out-

put 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 sup-

ply voltages in the 2.7V to 3.6V range. The serial interface is

compatible with standard SPI ™ , QSPI, MICROWIRE and

DSP interfaces.

The reference for the DAC124S085 serves all four channels

and can vary in voltage between 1V and V

widest possible output dynamic range. The DAC124S085 has

a 16-bit input shift register that controls the outputs to be up-

dated, the mode of operation, the powerdown condition, and

the binary input data. All four outputs can be updated simul-

taneously or individually depending on the setting of the two

mode of operation bits.

A power-on reset circuit ensures that the DAC output powers

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

to the device. A power-down feature reduces power con-

sumption to less than a microWatt with three different termi-

nation options.

The low power consumption and small packages of the

DAC124S085 make it an excellent choice for use in battery

operated equipment.

The DAC124S085 is one of a family of pin compatible DACs,

including the 8-bit DAC084S085 and the 10-bit DAC104S085.

The DAC124S085 operates over the extended industrial tem-

perature range of −40°C to +105°C.

Pin Configuration

SPI ™ is a trademark of Motorola, Inc.

201732

20173201

, providing the

Features

■

Key Specifications

■

Applications

■

Guaranteed Monotonicity

Low Power Operation

Rail-to-Rail Voltage Output

Power-on Reset to 0V

Simultaneous Output Updating

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

Industry's Smallest Package

Power Down Modes

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

1.1 mW (3V) / 2.4 mW (5V) typ

0.3 µW (3V) / 0.8 µW (5V) typ

+0.7 / −0.5 LSB (max)

−0.75 %FS (max)

20173202

+15 mV (max)

www.national.com

±8 LSB (max)

January 2007

8.5 µs (max)

12 bits

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