Datasheet > ADS1224IPWR

ADS1224IPWR

更新时间： 2024-09-28 22:35:35

品牌	Logo	应用领域
BB		转换器复用器光电二极管
页数	文件大小	规格书
23页	262K
描述
24-Bit Analog-to-Digital Converter with 4-Channel Differential Input Multiplexer

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数据手册

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ADS1224IPWR 数据手册

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SBAS286A − JUNE 2003 − REVISED MARCH 2004

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FEATURES

DESCRIPTION

240SPS Data Rate with 4MHz Clock

20-Bit Effective Resolution

The ADS1224 is a 4-channel, 24-bit, delta-sigma ana-

log-to-digital (A/D) converter. It offers excellent perfor-

mance and low power in a TSSOP-20 package. The

ADS1224 is well-suited for demanding, high-resolution

measurements, especially in portable systems and oth-

er space-saving and power-constrained applications.

Input Multiplexer with Four Differential

Channels

Pin-Selectable, High-Impedance Input Buffer

5V Differential Input Range

A delta-sigma modulator and digital filter form the basis

of the A/D converter. The analog modulator has a 5V

differential input range. An input multiplexer (mux) is

used to select between four separate differential input

channels. A buffer can be selected to increase the input

impedance of the measurement.

0.0003% INL (typ), 0.0015% INL (max)

Self-Calibrating

Simple 2-Wire Serial Interface

On-Chip Temperature Sensor

Single Conversions with Standby Mode

Low Current Consumption: 300µA

Analog Supply: 2.7V to 5.5V

A simple, 2-wire serial interface provides all the

necessary control. Data retrieval, self-calibration, and

Standby mode are handled with a few simple

waveforms. When only single conversions are needed,

the ADS1224 can be quickly shut down (Standby mode)

while idle between measurements to dramatically

reduce the overall power consumption. Multiple

ADS1224s can be connected together to create a

synchronously sampling multichannel measurement

system. The ADS1224 is designed to easily connect to

microcontrollers, such as the MSP430.

Digital Supply: 2.7V to 5.5V

APPLICATIONS

Hand-Held Instrumentation

Portable Medical Equipment

Industrial Process Control

Weigh Scales

The ADS1224 supports 2.7V to 5.5V analog supplies

and 2.7V to 5.5V digital supplies. Power is typically less

than 1mW in 3V operation and less than 1µW during

Standby mode.

TEMPEN

AVDD

VREFP VREFN

DVDD

CLK

AINP1

AINN1

AINP2

AINN2

Digital Filter

and

Serial Interface

SCLK

∆Σ

Modulator

Mux

Buffer

DRDY/DOUT

AINP3

AINN3

AINP4

AINN4

MUX0 MUX1

BUFEN

GND

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.

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与ADS1224IPWR相关器件

型号	品牌	获取价格	描述	数据表
ADS1224IPWT	BB	获取价格	24-Bit Analog-to-Digital Converter with 4-Channel Differential Input Multiplexer
ADS1225	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1225IRGVR	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1225IRGVRG4	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1225IRGVT	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1225IRGVTG4	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1226	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1226IRGVR	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1226IRGVRG4	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS1226IRGVT	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter

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