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CS5503-BP 数据表(PDF) 1 Page - Cirrus Logic |
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CS5503-BP 数据表(HTML) 1 Page - Cirrus Logic |
1 / 54 page 1 Copyright Cirrus Logic, Inc. 2003 (All Rights Reserved) Cirrus Logic, Inc. www.cirrus.com CS5501 CS5503 16 & 20-Bit A/D Converter 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 - Microcontroller-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 Description The CS5501 and CS5503 are CMOS A/D converters ideal for measuring low-frequency signals representing physical, chemical, and biological processes. They uti- lize charge-balance techniques to achieve 16-bit (CS5501) and 20-bit (CS5503) performance with up to 4 kSps word rates. The converters continuously sample at a rate set by the user in the form of either a CMOS clock or a crystal. On- chip digital filtering processes the data and updates the output register at up to a 4 kSps rate. The converters' low- pass, 6-pole Gaussian response filter is designed to al- low corner frequency settings from 0.1 Hz to 10 Hz in the CS5501 and 0.5 Hz to 10 Hz in the CS5503. Thus, each converter rejects 50 Hz and 60 Hz line frequencies as well as any noise at spurious frequencies. The CS5501 and CS5503 include on-chip self-calibra- tion circuitry which can be initiated at any time or temperature to insure offset and full-scale errors of typi- cally less than 1/2 LSB for the CS5501 and less than 4 LSB for the CS5503. The devices can also be applied in system calibration schemes to null offset and gain er- rors in the input channel. Each device's serial port offers two general purpose modes of operation for direct interface to shift registers or synchronous serial ports of industry-standard micro- controllers. In addition, the CS5501's serial port offers a third, UART-compatible mode of asynchronous communication. ORDERING INFORMATION See page 33. I Calibration CAL AIN AGND DGND BP/UPSLEEP SRAM SC1 SC2 Calibration Microcontroller Analog Modulator 6-Pole Gaussian Low-Pass Digital Filter Charge-Balanced A/D Converter Clock Generator Serial Interface Logic VA+ VA- VD+ VD- SDATA CLKOUTCLKIN DRDY CS MODESCLK VREF 10 9 8 5 12 11 4 13 14 7 15 6 20 23 18 16 1 19 SEP ‘04 DS31F4 Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CS5501 CS5503 Non-aliasing, 16- & 20-bit A/D Converters I AUG ‘05 DS31F5 Charge-balanced A/D Converter Calibration SRAM Calibration Microcontroller 6-pole Gaussian Low-pass Digital Filter Analog Modulator Clock Generator Serial Interface Logic VREF BP/UP SLEEP AIN AGND DGND CAL VA+ VD+ VD- VA- SDATA DRDY CS MODE SCLK CLKIN CLKOUT SC1 SC2 10 9 8 5 13 7 15 14 6 20 12 11 4 17 32 18 16 1 19 CS5501 CS5503 |
类似零件编号 - CS5503-BP |
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类似说明 - CS5503-BP |
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