CS5501-AP

Low-Cost, 16 & 20Bit Measurement A/D Converter

Description

The CS5501 and CS5503 are low-cost CMOS A/D converters ideal for measuring low-frequency signals representing physical, chemical, and biological process es. They utilize charge-balance techniques to achieve 16-bit CS5501 and 20-bit CS5503 performance with up to 4 kHz word rates at very low cost.

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

\- µC-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

Evaluation Boards Available