Features

• Bridge sensors' whole front-end

• At gain = 1, 23.5-bits effective resolution

• 19.2-bit resolution with zero noise at gain = 64

• PGA low-noise

• Gains of 1, 2, 64, and 128 that can be chosen

• RMS noise is as follows: - 17 nV at 10 SPS at gain = 128 - 44 nV at 80 SPS at gain = 128

• 100-dB simultaneous rejection at 50 Hz and 60 Hz

Flexible clocking options include an external crystal or a low-drift internal oscillator.

• Data rates of 10 or 80 SPS are selectable.

• Simple ratiometric measurements: - Up to 5 V external voltage reference

• Internal temperature sensor with two channels of differential input (ADS1232)

• Input with four differential channels (ADS1234)

• Serial interface with two wires

• 2.7 to 5.3 volts is the supply voltage range.

• -40°C to +105°C in the temperature range

• TSSOP-24 (ADS1232) or TSSOP-28 packages (ADS1234)