General Description
The CS5531/32/33/34 are highly integrated ∆Σ Analog-to-Digital Converters (ADCs) which use charge-balance techniques to achieve 16-bit (CS5531/33) and 24-bit (CS5532/34) performance. The ADCs are optimized for measuring low-level unipolar or bipolar signals in weigh scale, process control, scientific, and medical applications.

FEATUREs
● Chopper Stabilized PGIA (Programmable Gain Instrumentation Amplifier, 1x to 64x)
    6 nV/√Hz @ 0.1 Hz (No 1/f noise) at 64x
    500 pA Input Current with Gains >1
● Delta-Sigma Analog-to-Digital Converter
    Linearity Error: 0.0007% FS
    Noise Free Resolution: Up to 23 bits
● Two or Four Channel Differential MUX
● Scalable Input Span via Calibration
    ±5 mV to differential ±2.5V
● Scalable VREF Input: Up to Analog Supply
● Simple three-wire serial interface
    SPIand Microwire™ Compatible
    Schmitt Trigger on Serial Clock (SCLK)
● R/W Calibration Registers Per Channel
● Selectable Word Rates: 6.25 to 3,840 Sps
● Selectable 50 or 60 Hz Rejection
● Power Supply Configurations
    VA+ = +5 V; VA- = 0 V; VD+ = +3 V to +5 V
    VA+ = +2.5 V; VA- = -2.5 V; VD+ = +3 V to +5 V
    VA+ = +3 V; VA- = -3 V; VD+ = +3 V