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전자부품 데이터시트 검색엔진 |
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CS5541 데이터시트(PDF) 1 Page - Cirrus Logic |
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CS5541 데이터시트(HTML) 1 Page - Cirrus Logic |
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1 / 26 page  Preliminary Product Information This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. 1 Copyright Cirrus Logic, Inc. 2000 (All Rights Reserved) P.O. Box 17847, Austin, Texas 78760 (512) 445 7222 FAX: (512) 445 7581 http://www.cirrus.com CS5541 Low-Power, Low-Voltage, 24-Bit ∆Σ ADC Features l ∆Σ Analog-to-Digital Converter - Linearity Error: 0.0015% FS - RMS Noise: 2 µV l Two 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 3-Wire Serial Interface - SPITM and MicrowireTM Compatible - Schmitt Trigger on Serial Clock (SCLK) l Low Power - Single +3.0 V Supply - 330 µA Operating; 10 µA Sleep Current Description The CS5541 is a 24-bit low-power and low-voltage ∆Σ analog-to-digital converter (ADC). It is optimized to con- vert analog signals in DC measurement applications, such as temperature and pressure measurement, and various portable devices where low-power consumption is required. To accommodate these applications, the ADC integrates analog input and reference buffers for increased input impedance and includes a two-channel multiplexer. Ab- solute 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, pro- vides 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, pro- vides 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-con- figure serial interface reduces time-to-market and makes the CS5541 an ideal device for low-cost, power-con- scious DC measurement applications. ORDERING INFORMATION CS5541-BS-40 ºC - +85 ºC 16-Pin SSOP Differential 4th Order ∆Σ Modulator Digital Filter Serial Interface Calibration Register Output Register Input Mux Clock Generator X1 X1 X1 X1 VA+ VA- VD+ DGND VREF+ VREF- OSC1 OSC2 AIN1+ AIN1- AIN2+ AIN2- SDI SDO SCLK CS JUN ‘01 DS500PP1 |
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