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STR710FZ1T6 датащи(PDF) 62 Page - STMicroelectronics |
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STR710FZ1T6 датащи(HTML) 62 Page - STMicroelectronics |
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62 / 74 page ![]() Electrical parameters STR71xF 62/74 2.3.9 ADC characteristics Subject to general operating conditions for AVDD, fPCLK2, and TA unless otherwise specified. Notes: 1. Unless otherwise specified, typical data are based on TA=25°C and AVDD-AVSS=3.3V. They are given only as design guidelines and are not tested. 2. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10k Ω). Data based on characterization results, not tested in production. 3. Calibration is needed once after each power-up. Table 36. ADC characteristics Symbol Parameter Conditions Min Typ 1) Max Unit fMOD Modulator Oversampling frequency 2.1 MHz VAIN Conversion voltage range 2)3) 02.5 V Ilkg Negative input leakage current on analog pins VIN<VSS, | IIN |< 400µA on adjacent analog pin 56 µA PBR Passband Ripple 0.1 dB SINAD S/N and Distortion 56 63 dB THD Total Harmonic Distortion 60 74 dB ZIN Input Impedance fMOD = 2 MHz 1 M Ω CADC Internal sample and hold capacitor 3.2 pF tCONV Total Conversion time (including sampling time) 4096/ fMOD (max) IADC Normal mode TA = 27 °C 2.5 3.0 mA Standby mode TA = 27 °C 1 µA |
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