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The CS5542/CS5543 chipset is designed to be a complete current measurement data acquisition system. The CS5542 is a 22-bit, 2-channel, fifth-order Delta-Sigma modulator. The CS5543 is a monolithic, CMOS, 8-channel digital FIR filter designed to be used with up to four CS5542s, forming an 8-channel system. The complete system is capable of cascading up to 1024 channels. The system supports 22-bit measurement resolution with output conversion rates up to 1 kHz per channel. JTAG boundary-scan capability is available to facilitate self-test at the system level. Potential applications for the CS5542/CS5543 system are environmental monitoring, process control systems, color sensing, light measurement, chemical analyzers, and photo-diode transducer applications.
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