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CS5504 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS5504 Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 24 page 1 Copyright © Cirrus Logic, Inc. 1997 (All Rights Reserved) Cirrus Logic, Inc. Crystal Semiconductor Products Division P.O. Box 17847, Austin, Texas 78760 (512) 445 7222 FAX: (512) 445 7581 http://www.crystal.com CS5504 Low Power, 20-Bit A/D Converter Features l Delta-sigma A/D Converter - 20-bit, No Missing Codes - Linearity Error: ±0.0007%FS l 2 Differential Inputs - Pin-selectable Unipolar/Bipolar Ranges - Common Mode Rejection 105 dB @ dc 120 dB @ 50, 60 Hz l Either 5V or 3.3V Digital Interface l On-chip Self-calibration Circuitry l Output Update Rates up to 200/Sps l Low Power Consumption: 4.4 mW Description The CS5504 is a 2-channel, fully differential 20-bit, seri- al-output CMOS A/D converter. The CS5504 uses charge-balanced (delta-sigma) techniques to provide a low cost, high-resolution measurement at output word rates up to 200 samples per second. The on-chip digital filter offers superior line rejection at 50 Hz and 60 Hz when the device is operated from a 32.768 kHz clock (output word rate = 20 Sps). The CS5504 has on-chip self-calibration circuitry which can be initiated at any time or temperature to ensure minimum offset and full-scale errors. Low power, high-resolution and small package size make the CS5504 an ideal solution for loop-powered transmitters, panel meters, weigh scales and battery- powered instruments. ORDERING INFORMATION See page 23. CS5504-BS -40° to +85° C 20-pin SOIC I CS AIN1- A0 VREF+ VREF- DGND VD+ SCLK SDATA DRDY CAL BP/UP CONV XIN AIN1+ 8 10 1 12 13 16 2 18 19 20 4 7 35 AIN2- AIN2+ 9 11 XOUT 6 17 VA- 15 VA+ 14 MUX 4th-Order Delta-Sigma Modulator Digital Filter Calibration µC Serial Interface Logic OSC Calibration SRAM MAR ‘95 DS126F1 Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CS5504 Low-power, 20-bit A/D Converter AUG ‘05 DS126F2 Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CDB5504 Evaluation Board for CS5504 A/D Converter AUG ‘05 DS126DB2 Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CS5504 Low-power, 20-bit A/D Converter AUG ‘05 DS126F2 |
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