Datasheet > ADS1131_14

ADS1131_14

更新时间： 2024-01-14 12:02:32

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德州仪器 - TI		/
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18-Bit Analog-to-Digital Converter for Bridge Sensors

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ADS1131_14 数据手册

ADS1131

www.ti.com

SBAS449B –JULY 2009–REVISED SEPTEMBER 2011

18-Bit Analog-to-Digital Converter

for Bridge Sensors

FEATURES

DESCRIPTION

The ADS1131 is a precision, 18-bit analog-to-digital

converter (ADC). With an onboard, low-noise

amplifier, onboard oscillator, precision 18-bit

delta-sigma (ΔΣ) ADC, and bridge power switch, the

ADS1131 provides a complete front-end solution for

bridge sensor applications including weigh scales,

strain gauges, and load cells.

•

Complete Front-End for Bridge Sensors

Available in an SO Package

Internal Amplifier, Gain of 64

Internal Oscillator

Low-Side Power Switch for Bridge Sensor

18-Bit Noise-Free Resolution

The low-noise amplifier has a gain of 64, supporting a

full-scale differential input of ±39mV. The ΔΣ ADC

has 18-bit effective resolution and is comprised of a

third-order modulator and fourth-order digital filter.

Two data rates are supported: 10SPS (with both

50Hz and 60Hz rejection) and 80SPS. The ADS1131

can be put into a low-power standby mode or shut off

completely in power-down mode.

Selectable 10SPS or 80SPS Data Rates

Simultaneous 50Hz and 60Hz Rejection at

10SPS

•

External Voltage Reference up to 5V for

Ratiometric Measurements

•

Simple, Pin-Driven Control

Two-Wire Serial Digital Interface

Supply Range: 3V to 5.3V

The ADS1131 is controlled by dedicated pins; there

are no digital registers to program. Data are output

over an easily-isolated serial interface that connects

directly to the MSP430 and other microcontrollers.

–40°C to +85°C Temperature Range

APPLICATIONS

The ADS1131 is available in an SO-16 package and

is specified from –40°C to +85°C.

•

Weigh Scales

Strain Gauges

Load Cells

Industrial Process Control

CAP CAP VREFP VREFN DVDD

AVDD

PDWN

AINP

AINN

DRDY/DOUT

SCLK

G = 64

DS ADC

SPEED

Internal

Oscillator

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.

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...20

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与ADS1131_14相关器件

型号	品牌	获取价格	描述	数据表
ADS1131ID	TI	获取价格	18-Bit Analog-to-Digital Converter for Bridge Sensors
ADS1131IDR	TI	获取价格	18-Bit Analog-to-Digital Converter for Bridge Sensors
ADS1131IPW	TI	获取价格	DELTA-SIGMA ADC, PDSO16, PLASTIC, TSSOP-16
ADS1131REF	TI	获取价格	ADS1131REF and ADS1231REF
ADS1146	TI	获取价格	16-Bit Analog-to-Digital Converters for Temperature Sensors
ADS1146_10	TI	获取价格	16-Bit Analog-to-Digital Converters for Temperature Sensors
ADS1146_12	TI	获取价格	16-Bit Analog-to-Digital Converters for Temperature Sensors
ADS1146_14	TI	获取价格	16-Bit Analog-to-Digital Converters for Temperature Sensors
ADS1146EVM	TI	获取价格	Contains all support circuitry needed for the ADS1146/ADS1246
ADS1146EVM-PDK	TI	获取价格	Contains all support circuitry needed for the ADS1146/ADS1246

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