• Passive filter

CS5376A

Article: 00047212

Passive filter

The CS5376A is a multifunction digital filter using a low-power signal processing architecture to achieve efficient filtering for up to four Delta-Sigma modulators. By combining the CS5376A with CS3301/02 differential amplifiers, the CS5371/72 Delta-Sigma modulators and the CS4373A Delta-Sigma digital-to-analog (D/A) converters, a synchronous high-resolution multichannel measurement system can be designed quickly and easily.
Digital filter coefficients for the CS5376A FIR (finite impulse response) and IIR (infinite impulse response) filters are included on-chip for a simple setup, or they can be programmed for custom applications. Selectable digital filter decimation ratios produce output word rates from 4,000 samples per second (SPS) down to 1 SPS, resulting in measurement bandwidths ranging from 1,720 Hz to 430 mHz when using the on-chip coefficient sets.
The CS5376A includes integrated peripherals to simplify system design: offset and gain corrections; a test D/A converter bitstream generator; a time-break controller; 12 general-purpose input/output pins; and a secondary SPI port.

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