ADS1230中文资料适用于阻性桥式传感器和称重称的 20 位 80SPS 单通道 Δ-Σ ADC数据手册TI规格书

描述 Description

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.

特性 Features

• Complete Front-End for Bridge Sensor
• Onboard Oscillator
• 18-Bit Noise-Free Resolution
• Simultaneous 50Hz and 60Hz Rejection at 10SPS
• Simple, Pin-Driven Control
• Tiny 16-pin TSSOP Package
• -40°C to +85°C Temperature Range
• Weigh Scales
• Pressure Sensors
• Industrial Process Control