CS5530-ISZR 24 Bit Analog To Digital Converter 1 Input 1 Sigma - Delta SPI Data Interface

CS5530-ISZR 24 Bit Analog to Digital Converter 1 Input 1 Sigma-Delta

General Description

The CS5530 is a highly integrated Analog-to-Digital Converter (ADC) which uses charge-balance techniques to achieve 24-bit performance. The ADC is optimized for measuring low-level unipolar or bipolar signals in weigh scale, process control, scientific, and medical applications. To accommodate these applications, the ADC includes a very-low-noise, chopper-stabilized instrumentation amplifier (12 nV/√Hz @ 0.1 Hz) with a gain of 64X. This device also includes a fourth-order modulator followed by a digital filter which provides twenty selectable output word rates of 6.25, 7.5, 12.5, 15, 25, 30, 50, 60, 100, 120, 200, 240, 400, 480, 800, 960, 1600, 1920, 3200, and 3840 Sps (MCLK = 4.9152 MHz). To ease communication between the ADC and a microcontroller, the converter includes a simple three-wire serial interface which is SPI and Microwire compatible with a Schmitt-trigger input on the serial clock (SCLK). High dynamic range, programmable output rates, and flexible power supply options make this device an ideal solution for weigh scale and process control applications.