ADS1234IPWR Datasheet PDF - TI

●DESCRIPTION

●The ADS1232 and ADS1234 are precision 24-bit analog-to-digital converters (ADCs). With an onboard, low-noise programmable gain amplifier (PGA), precision delta-sigma ADC and internal oscillator, the ADS1232/4 provide a complete front-end solution for bridge sensor applications including weigh scales, strain gauges and pressure sensors.

●FEATURES

●• Complete Front-End for Bridge Sensors

●• Up to 23.5 Effective Bits

●• Onboard, Low-Noise PGA

●• RMS Noise:

●   17nV at 10SPS (PGA = 128)

●   44nV at 80SPS (PGA = 128)

●• 19.2-Bit Noise-Free Resolution at Gain = 64

●• Over 100dB Simultaneous 50Hz and 60Hz Rejection

●• Flexible Clocking: Low-Drift Onboard Oscillator (±3%) Optional External Crystal

●• Selectable Gains of 1, 2, 64, and 128

●• Easy Ratiometric Measurements–External Voltage Reference up to 5V

●• Selectable 10SPS or 80SPS Data Rates

●• Two-Channel Differential Input with Built-In Temperature Sensor (ADS1232)

●• Four-Channel Differential Input (ADS1234)

●• Simple Serial Digital Interface

●• Supply Range: 2.7V to 5.3V

●• –40°C to +105°C Temperature Range

●APPLICATIONS

●• Weigh Scales

●• Strain Gauges

●• Pressure Sensors

●• Industrial Process Control