DESCRIPTION

· The CS5505/6/7/8 are low-power CMOS A/D converters designed for measuring low-frequency signals in physical, chemical, and biological processes.

· CS5507/8 feature single-channel differential analog and reference inputs, while CS5505/6 offer four pseudo-differential analog input channels.

· CS5505/7 provide a 16-bit output, and CS5506/8 offer a 20-bit output.

· Sampling rate up to 100 Sps with on-chip digital filter for superior line rejection at 50 and 60 Hz.

· Includes on-chip self-calibration circuitry to minimize offset and full-scale errors.

· Flexible serial port for direct interface with shift registers or synchronous serial ports of industry-standard microcontrollers.

FEATURES

· Very low power consumption: 1.7 mW at +5 V single supply, 3.2 mW at ±5 V dual supply.

· Superior performance compared to VFCs and multi-slope integrating ADCs.

· Differential inputs with single-channel (CS5507/8) and four-channel (CS5505/6) pseudo-differential versions.

· Compatible with 5 V or 3.3 V digital interface.

· Linearity error: ±0.0015% FS (16-bit CS5505/7), ±0.0007% FS (20-bit CS5506/8).

· Pin-selectable unipolar/bipolar ranges.

APPLICATIONS

· Ideal for measuring low-frequency signals in physical, chemical, and biological processes.

· Suitable for applications requiring high precision and low power consumption.

· Can be used in systems with 5 V or 3.3 V digital interfaces.

· Applicable in environments where line rejection at 50 and 60 Hz is crucial.

· Useful in systems requiring flexible serial port communication with microcontrollers.