ADS1131 - 用于桥传感器的 18 位模数转换器

ADS1131是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS1131是用于桥传感器的 18 位模数转换器，本站介绍了ADS1131的封装应用图解、特点和优点、功能等，并给出了与ADS1131相关的TI元器件型号供参考。

ADS1131 - 用于桥传感器的 18 位模数转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

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.

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.

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.

The ADS1131 is available in an SO-16 package and is specified from –40°C to +85°C.

产品特性

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
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
–40°C to +85°C Temperature Range

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