CS5541 Datasheet | Cirrus Logic

Features l ∆Σ Description The CS5541 is a 24-bit low-power and low-voltage ∆Σ analog-to-digital converter (ADC). It is optimized to convert analog signals in DC measurement applications, such as temperature and pressure measurement, and various portable devices where low-power consumption is required. To acmodate these applications, the ADC integrates analog input and reference buffers for increased input impedance and includes a two-channel multiplexer. Absolute accuracy is achieved via one-time or continuous calibration modes. The device draws less than 330µA. The CS5541 includes two digital filters. The first filter, which achieves simultaneous rejection of 50/60 Hz, provides single conversion settling at 13.4 SPS throughput or four conversion settling at 53.7 SPS throughput. The second filter, which achieves 16-bit performance, provides single conversion settling at 64.8 SPS throughput or four conversion settling at 260 SPS throughput. Low-power, low-voltage operation and an easy-to-configure serial interface reduces time-to-market and makes the CS5541 an ideal device for low-cost, power-conscious DC measurement applications. ORDERING INFORMATION CS5541-BS-40 ºC - +85 ºC 16-Pin SSOP Analog-to-Digital Converter - Linearity Error: 0.0015% FS - RMS Noise: 2 µV Channel Differential MUX l Buffered, Fully Differential Analog and .. Voltage Reference Inputs l Scalable VREF Input: 0.1 V to Analog Supply l Absolute Accuracy via Calibration l Flexible Digital Filters - Single Conversion Settling at 13.4 SPS or 4 Conversion Settling at 53.7 SPS with Simultaneous 50/60 Hz Rejection - Single Conversion Settling at 64.8 SPS or Four Conversion Settling at 260 SPS with 16-bit Resolution l Simple TM l Two 3-Wire Serial Interface - SPI and Microwire TM patible - Schmitt Trigger on Serial Clock (SCLK) l Low Power - Single +3.0 V Supply - 330 µA Operating; 10 µA Sleep Current VA+ VREF+ VREF- OSC1 OSC2 VD+ X1 X1 Clock Generator Serial Interface CS AIN1+ AIN1AIN2+...