Datasheet > DAC122K5

DAC122K5

更新时间： 2024-01-27 20:24:58

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
26页	658K
描述
20-Bit, Low-Power Digital-to-Analog Converter

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DAC122K5 数据手册

DAC1220

www.ti.com...................................................................................................................................... SBAS082G –FEBRUARY 1998–REVISED SEPTEMBER 2009

20-Bit, Low-Power

Digital-to-Analog Converter

Check for Samples: DAC1220

FEATURES

DESCRIPTION

•

20-Bit Monotonicity Ensured Over –40°C to

+85°C

The DAC1220 is a 20-bit digital-to-analog (D/A)

converter offering 20-bit monotonic performance over

the specified temperature range. It utilizes

delta-sigma technology to achieve inherently linear

performance in a small package at very low power.

The resolution of the device can be programmed to

20 bits for Full-Scale, settling to 0.003% within 15ms

typical, or 16 bits for Full-Scale, settling to 0.012%

within 2ms max. The output range is two times the

external reference voltage. On-chip calibration

circuitry dramatically reduces low offset and gain

errors.

•

Low Power: 2.5mW

Voltage Output

Settling Time: 2ms to 0.012%

Maximum Linearity Error: ±0.0015%

On-Chip Calibration

APPLICATIONS

•

Process Control

ATE Pin Electronics

Closed-Loop Servo Control

Smart Transmitters

Portable Instruments

The DAC1220 features

synchronous serial

interface; in single-converter applications, the serial

interface can be accomplished with just two wires,

allowing low-cost isolation. For multiple converters, a

CS signal allows for selection of the appropriate D/A

converter.

The DAC1220 has been designed for closed-loop

control applications in the industrial process control

market and high-resolution applications in the test

and measurement market. It is also ideal for remote

applications, battery-powered instruments, and

isolated systems. The DAC1220 is available in an

SSOP-16 package.

X_IN

X_OUT

V_REF

AV_DD

AGND

Clock Generator

Microcontroller

C₁

2nd−Order

∆Σ

Modulator

1st−Order

Switched

Capacitor Filter

2nd−Order

Continuous

Time Post Filter

Instruction Register

Command Register

Data Register

V_OUT

C₂

Offset Register

Full−Scale Register

Modulator Control

Serial

Interface

SDIO

SCLK

DV_DD

DGND

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

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与DAC122K5相关器件

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DAC122S085	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
DAC122S085	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
DAC122S085_07	NSC	获取价格	12-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
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

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