Datasheet > ADS1225IRGVTG4

ADS1225IRGVTG4

更新时间： 2024-09-29 03:55:19

品牌	Logo	应用领域
亚德诺 - ADI		振荡器转换器
页数	文件大小	规格书
24页	421K
描述
24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator

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ADS1225IRGVTG4 数据手册

ADS1225

ADS1226

SBAS346–MAY 2006

24-Bit Analog-to-Digital Converter

with One- and Two-Channel Differential Inputs and Internal Oscillator

FEATURES

DESCRIPTION

•

100SPS Data Rate (High-Speed Mode)

The ADS1225 and ADS1226 are 24-bit delta-sigma

analog-to-digital (A/D) converters. They offer

excellent performance, ease-of-use, and low power

in a small 4mm × 4mm QFN package and are

Single-Cycle Settling

Easy Conversion Control with START Pin

Automatic Shutdown

well-suited

for

demanding

high-resolution

Low Noise: 4µV_RMSNoise (High-Resolution

Mode)

measurements, especially in portable and other

space-saving and power-constrained applications.

•

Input Multiplexer with Two Differential

Channels (ADS1226)

The ADS1225 and ADS1226 convert on command

using a dedicated START pin. Simply pulse this pin

to initiate a conversion. Data is read in a single cycle

for retrieval over a 2-wire serial interface that easily

connects to popular microcontrollers like the

MSP430. After the conversion completes, the

ADS1225 and ADS1226 automatically shuts down all

circuitry.

Voltage Reference Supports Ratiometric

Measurements

•

Self-Calibrating

Simple Read-Only 2-Wire Serial Interface

Internal High-Impedance Input Buffer

Internal Temperature Sensor

Internal Oscillator

Internal features include a two-channel multiplexer

(ADS1226), selectable input buffer, temperature

sensor, and oscillator. The full-scale range is defined

by the external voltage reference with support

provided for up to a 5V differential input signal. Two

operating modes allow for speed (100SPS data rate,

15µV_RMSnoise) or resolution (4µV_RMSnoise, 16SPS

data rate).

Low-Power: 1mW While Operating, < 1µA

During Shutdown

•

Analog and Digital Supplies: 2.7V to 5.5V

APPLICATIONS

•

Hand-Held Instrumentation

Portable Medical Equipment

Industrial Process Control

The ADS1225/6 supports 2.7 to 5.5V analog and

digital supplies. Power consumption is 1mW while

converting with 3V supplies. The ADS1225 and

ADS1226 are fully specified over an extended

industrial temperature range of –40°C to +105°C.

AVDD

VREFP VREFN DVDD

TEMPEN

START

AINP1

AINN1

MUX

SCLK

Buffer

Serial Interface

Oscillator

ADC

DRDY/DOUT

AINP2

AINN2

MODE

MUX

BUFEN

GND

ADS1226 Only

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...24

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与ADS1225IRGVTG4相关器件

型号	品牌	获取价格	描述	数据表
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
ADS1226IRGVTG4	ADI	获取价格	24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Inter
ADS122C04	TI	获取价格	具有 PGA、VREF、2 个 IDAC 和 I2C 接口的 24 位 2kSPS 4 通
ADS122C04IPW	TI	获取价格	具有 PGA、VREF、2 个 IDAC 和 I2C 接口的 24 位 2kSPS 4 通
ADS122C04IPWR	TI	获取价格	具有 PGA、VREF、2 个 IDAC 和 I2C 接口的 24 位 2kSPS 4 通
ADS122C04IRTER	TI	获取价格	具有 PGA、VREF、2 个 IDAC 和 I2C 接口的 24 位 2kSPS 4 通
ADS122C04IRTET	TI	获取价格	具有 PGA、VREF、2 个 IDAC 和 I2C 接口的 24 位 2kSPS 4 通

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