ADS1230 - 用于桥传感器的 20 位模数转换器

ADS1230是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS1230是用于桥传感器的 20 位模数转换器，本站介绍了ADS1230的封装应用图解、特点和优点、功能等，并给出了与ADS1230相关的TI元器件型号供参考。

ADS1230 - 用于桥传感器的 20 位模数转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADS1230 is a precision 20-bit analog-to-digital converter (ADC). With an onboard low-noise programmable gain amplifier (PGA), onboard oscillator, and precision 20-bit delta-sigma ADC, the ADS1230 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and pressure sensors.

The low-noise PGA has a gain of 64 or 128, supporting a full-scale differential input of ±39mV or ±19.5mV, respectively. The delta-sigma ADC has 20-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The ADS1230 can be clocked by the internal oscillator or an external clock source. Offset calibration is performed on-demand, and the ADS1230 can be put in a low-power standby mode or shut off completely in power-down mode.

All of the features of the ADS1230 are 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 ADS1230 is available in a TSSOP-16 package and is specified from -40°C to +85°C.

产品特性

Complete Front-End for Bridge Sensor
Onboard PGA with Gain of 64 or 128
Onboard Oscillator
RMS Noise:40nV at 10SPS (G = 128)88nV at 80SPS (G = 128)
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
Tiny 16-pin TSSOP Package
Supply Range: 2.7V to 5.3V
-40°C to +85°C Temperature Range
APPLICATIONS
- Weigh Scales
- Strain Gauges
- Pressure Sensors
- Industrial Process Control

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