Description
The CS5501 and CS5503 are CMOS A/D converters ideal for measuring low-frequency signals representing physical, chemical, and biological processes. They utilize charge-balance techniques to achieve 16-bit (CS5501) and 20-bit (CS5503) performance with up to 4 kSps word rates.

FEATUREs
● Monolithic CMOS ADC with Filtering
    - 6-pole, Low-pass Gaussian Filter
● Up to 4 kHz Output Word Rates
    - On Chip Self-calibration Circuitry
    - Linearity Error: ±0.0003%
    - Differential Nonlinearity:
        CS5501: 16-bit, No Missing Codes (DNL ±1/8 LSB)
        CS5503: 20-bit, No Missing Codes
● System Calibration Capability
● Flexible Serial Communications Port
    - Microcontroller-compatible Formats
    - 3-state Data and Clock Outputs
    - UART Format (CS5501 only)
● Pin-selectable Unipolar/Bipolar Ranges
● Low Power Consumption: 25 mW
    - 10 µW Sleep Mode for Portable Applications