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ZMD31020 Datasheet(PDF) 14 Page - Zentrum Mikroelektronik Dresden AG |
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ZMD31020 Datasheet(HTML) 14 Page - Zentrum Mikroelektronik Dresden AG |
14 / 19 page Copyright © 2004, ZMD AG, Rev. 1.6, 2005-05-19 14/19 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The Information furnished in this publication is preliminary and subject to changes without notice. ZMD31020 Sensor Signal Conditioner Datasheet 3.3.7 11-bit Output DAC & Output BUFFER (2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Output current IOUT current source & sink ±2 mA Analog output offset voltage VOUT_OFF -10 10 mV Temp.-coeff output offset voltage TCOUT_OFF -10 10 µV/K DAC differential nonlinearity DNLOUT -1 1 LSB DAC integral nonlinearity INLOUT to best-fit straight line -4 4 LSB Maximal output voltage VOUT_MAX IOUTSOURCE = 2mA 0.975 VDDA Minimal output voltage VOUT_MIN IOUTSINK = -2mA 0.025 VDDA VOUT low scale limit VOUT_LSL dig. ref.: pmin 0 0.25 VDDA VOUT low scale limit VOUT_HSL dig. ref.: pmax 0.75 1 VDDA Load resistance RL_OUT 2.5 kΩ Load capacitance CL_OUT 10 25 nF 3.3.8 Total System PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Startup time tSTA power up to 1st result 40 ms Response time tRESP 11 ms Conversion cycle time tCYC 10 ms Non-linearity NL to best-fit straight line -2500 +2500 ppm (3) TC sensor signal TCp 20 ppm/K TC temperature TCT 100 ppm/K Notes for the electrical parameters: 1) No measurement in mass production, parameter is guarantied by design. 2) During normal operation mode using the analog output the I 2C interface allows to read out the output digital value in parallel (= the digital input of the DAC). 3) Analog Signal Conditioning and Analog Digital Conversion for Measurement of the Pressure Sensor Bridge 4) The A/D conversion of the temperature signal is done with 10 bit resolution only. |
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