ADS1251

更新时间： 2024-09-12 22:47:39

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
17页	322K
描述
24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER

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替代型号

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ADS1251 数据手册

ADS1251

SBAS184A – MARCH 2001 – REVISED SEPTEMBER 2003

24-Bit, 20kHz, Low-Power

ANALOG-TO-DIGITAL CONVERTER

DESCRIPTION

FEATURES

The ADS1251 is a precision, wide dynamic range, delta-

sigma, Analog-to-Digital (A/D) converter with 24-bit resolu-

tion operating from a single +5V supply. The delta-sigma

architecture features wide dynamic range, and 24 bits of no

missing code performance. Effective resolution of 19 bits

(1.5ppm of rms noise) is achieved at conversion rates up to

20kHz.

● 24 BITS—NO MISSING CODES

● 19 BITS EFFECTIVE RESOLUTION UP TO

20kHz DATA RATE

● LOW NOISE: 1.5ppm

● DIFFERENTIAL INPUTS

● INL: 15ppm (max)

The ADS1251 is designed for high-resolution measurement

applications in cardiac diagnostics, smart transmitters, indus-

trial process control, weigh scales, chromatography, and

portable instrumentation. The converter includes a flexible,

2-wire synchronous serial interface for low-cost isolation.

● EXTERNAL REFERENCE (0.5V to 5V)

● POWER-DOWN MODE

● SYNC MODE

● LOW POWER: 8mW at 20kHz

5mW at 10kHz

The ADS1251 is a single-channel converter and is offered in

an SO-8 package. It is pin-compatible with the faster ADS1252

(41.7kHz data rate).

APPLICATIONS

● CARDIAC DIAGNOSTICS

● DIRECT THERMOCOUPLE INTERFACES

● BLOOD ANALYSIS

● INFRARED PYROMETERS

● LIQUID/GAS CHROMATOGRAPHY

● PRECISION PROCESS CONTROL

ADS1251

V_REF

CLK

+V_IN

4th-Order

∆Σ

Modulator

SCLK

Serial

Digital

Filter

Interface

DOUT/DRDY

–V_IN

+V_DD

GND

Control

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

12 3 4 5 6 7...17

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ADS1251 替代型号

型号	品牌	替代类型	描述	数据表
ADS1250	TI	功能相似	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1252	TI	功能相似	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1253	TI	功能相似	24-Bit, 20kHz, Low Power ANALOG-TO-DIGITAL CONVERTER

与ADS1251相关器件

型号	品牌	获取价格	描述	数据表
ADS1251_14	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1251U	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1251U/2K5	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1251U/2K5G4	TI	获取价格	24 位 20kHz 低功耗模数转换器 \| D \| 8
ADS1251U2K5	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1251U2K5G4	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1251UG4	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1252	BB	获取价格	24-Bit, 40kHz ANALOG-TO-DIGITAL CONVERTER
ADS1252	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
ADS1252K5	TI	获取价格	24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER

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