Datasheet > DAC122S085_07

DAC122S085_07

更新时间： 2024-02-09 05:14:02

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器
页数	文件大小	规格书
20页	419K
描述
12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output

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DAC122S085_07 数据手册

January 2007

DAC122S085

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

Rail-to-Rail Output

General Description

Features

The DAC122S085 is a full-featured, general purpose DUAL

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

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

0.6 mW at 3V and 1.6 mW at 5V. The DAC122S085 is pack-

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

package makes the DAC122S085 the smallest DUAL DAC in

its class. The on-chip output amplifier allows 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 sup-

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

compatible with standard SPI™, QSPI, MICROWIRE and

DSP interfaces.

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

Key Specifications

Resolution

INL

DNL

Settling Time

Zero Code Error

Full-Scale Error

Supply Power

12 bits

±8 LSB (max)

+0.7 / −0.5 LSB (max)

8.5 µs (max)

■

The reference for the DAC122S085 serves all four channels

and can vary in voltage between 1V and V_A, providing the

widest possible output dynamic range. The DAC122S085 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. Both outputs can be updated simulta-

neously or individually depending on the setting of the two

mode of operation bits.

■

+15 mV (max)

−0.75 %FS (max)

Normal

Power Down

0.6 mW (3V) / 1.6 mW (5V) typ

0.3 µW (3V) / 0.8 µW (5V) typ

—

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.

Applications

Battery-Powered Instruments

■

Digital Gain and Offset Adjustment

Programmable Voltage & Current Sources

Programmable Attenuators

The low power consumption and small packages of the

DAC122S085 make it an excellent choice for use in battery

operated equipment.

The DAC122S085 is one of a family of pin compatible DACs,

including the 8-bit DAC082S085 and the 10-bit DAC102S085.

The DAC122S085 operates over the extended industrial tem-

perature range of −40°C to +105°C.

Pin Configuration

20195201

20195202

SPI™ is a trademark of Motorola, Inc.

201952

www.national.com

12 3 4 5 6 7...20

中文翻译

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与DAC122S085_07相关器件

型号	品牌	获取价格	描述	数据表
DAC122S085CIMM	TI	获取价格	具有轨到轨输出的 12 位微功耗双路数模转换器 \| DGS \| 10 \| -40 to 1
DAC122S085CIMM	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
DAC122S085CIMM/NOPB	NSC	获取价格	IC SERIAL INPUT LOADING, 6 us SETTLING TIME, 12-BIT DAC, PDSO10, MSOP-10, Digital to Analo
DAC122S085CIMM/NOPB	TI	获取价格	具有轨到轨输出的 12 位微功耗双路数模转换器 \| DGS \| 10 \| -40 to 1
DAC122S085CIMMX	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
DAC122S085CIMMX/NOPB	NSC	获取价格	IC SERIAL INPUT LOADING, 6 us SETTLING TIME, 12-BIT DAC, PDSO10, MSOP-10, Digital to Analo
DAC122S085CIMMX/NOPB	TI	获取价格	具有轨到轨输出的 12 位微功耗双路数模转换器 \| DGS \| 10 \| -40 to 1
DAC122S085CISD	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
DAC122S085CISD/NOPB	TI	获取价格	具有轨到轨输出的 12 位微功耗双路数模转换器 \| DSC \| 10 \| -40 to 1
DAC122S085CISDX	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output

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