مدار مجتمع (آی سی) آی‌سی جمع‌آوری داده مبدل آنالوگ به دیجیتال (ای‌دی‌سی)

Product Attributes

Introduction

The SIG1232A is a low noise, low drift, and high-resolution 24-bit analog-to-digital converter (ADC) with integrated programmable gain amplifier (PGA) that offers high-accuracy measurement solutions for bridge sensors. The device contains a low noise PGA with gains selected from 1, 2, 64, and 128, a delta-sigma (Δ-Σ) modulator, and a SINC4 digital filter. Two data rates are provided from the device: 10SPS and 80SPS. SPI-compatible interface is used for device configuration and parity check is provided for data integrity. The on-chip oscillator, an external clock, or an external crystal can be used as the clock source to the device. The SIG1232A is available in 24-lead TSSOP package and is fully specified over the -40°C to +125°C temperature range.

Features

• PGA Gain: 1, 2, 64, and 128
• Data Rates: 10SPS and 80SPS
• RMS Noise: 19nV at 10SPS
• Offset Drift: 5nV/°C
• Gain Drift: 1ppm/°C
• Internal or External Clock
• Parity Check
• Power Supply AVDD: 2.7V to 5.25V DVDD: 2.7V to 5.25V
• Current: 1.5mA
• Package: 24-lead TSSOP

Applications

• Weigh Scales
• Strain Gauges
• Pressure Sensors
• Industrial Process Control