Description
The CS5542 / CS5543 chip set is designed to be a complete current measurement data acquisition system. The CS5542 is a 22-Bit, 2-channel, 5th-order delta sigma modulator. The CS5543 is a monolithic CMOS, 8-channel digital FIR filter designed to be used with up to four CS5542’s forming an 8-channel system. The complete system is capable of cascading up to 1024 channels.

Features
● Delta-Sigma Architecture:
    - 5th Order Modulator
    - 22-Bit Resolution
● dc Accuracy (fBW = 250Hz):
    - Integral Linearity: ±0.001 % F.S.
    - Differential Linearity: ±0.5 LSBs
    - RMS Noise: 1.1 pARMS
● Pin Selectable Input Range:
    - ±400 nA to ±2.5 µA Full Scale
● 8-Channel Digital FIR Filter
● Self-calibration of Offset and Gain
● Low Power: 50 mW /ch for 8-ch system