CS5505/6/7/8

Very Low Power Consumption
    - Single supply +5 V operation: 1.7 mW
    - Dual supply ±5 V operation: 3.2 mW
Offers superior performance to VFCs and 
    multi-slope integrating ADCs
Differential Inputs
    - Single Channel (CS5507/8) and Four-Channel
    (CS5505/6) pseudo-differential versions
Either 5 V or 3.3 V Digital Interface
Linearity Error:
    - ±0.0015% FS (16-bit CS5505/7)
    - ±0.0007% FS (20-bit CS5506/8)
Output update rates up to 100 Sps
Flexible Serial Port
Pin-Selectable Unipolar/Bipolar Ranges

The CS5505/6/7/8 are a family of low power CMOS A/D converters which are ideal for measuring low-frequency signals representing physical, chemical, and biological processes.

The CS5507/8 have single-channel differential analog and reference inputs while the CS5505/6 have four pseudo-differential analog input channels. The CS5505/7 have a 16-bit output word. The CS5506/8 have a 20-bit output word.The CS5505/6/7/8 sample upon command up to 100  Sps.

The on-chip digital filter CS5505/6/7/8 offers superior line rejection at 50 and 60 Hz when the device is operated from a 32.768kHz clock (output word rate = 20  Sps).

The CS5505/6/7/8 include on-chip self-calibration circuitry which can be initiated at any time or temperature to ensure minimum offset and full-scale errors.

The CS5505/6/7/8 serial port offers two general-purpose modes for the direct interface to shift registers or synchronous serial ports of industry standard microcontrollers.