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WM8170 Datasheet(PDF) 5 Page - Wolfson Microelectronics plc |
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WM8170 Datasheet(HTML) 5 Page - Wolfson Microelectronics plc |
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5 / 41 page  WM8170 Product Preview Rev 1.0 WOLFSON MICROELECTRONICS LTD PP Rev 1.0 March 2000 5 ELECTRICAL CHARACTERISTICS Test Characteristics CVDD = AVDD = DVDD = 3.3V, AGND = DGND = CGND = 0V, RISET=15k Ω , TA = 0oC to +70oC, unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital Inputs High level input voltage VIH 0.8*DVDD V Low level input voltage VIL 0.2*DVDD V High level input current IIH 1 µA Low level input current IIL 1 µA Input capacitance CIN 5 pF Digital Outputs High level output voltage VOH IOH = 1mA DVDD-0.6 V Low level output voltage VOL IOL = 1mA 0.6 V High impedance O/P current IOZ 1 µA Analogue Inputs Input common mode range VCMR 0.3 AVDD-0.3 V 10-bit ADC Performance Including CDS and PGA Functions NO MISSING CODES GUARANTEED Resolution 10 Bits Maximum differential non- linearity DNL PGA at minimum gain +/-1 LSB Maximum integral non- linearity INL PGA at minimum gain +/-2 LSB Maximum sampling rate SMAX 21.5 MSPS CDS S/H PGA = 00hex V375 TIMES2 0 0 1 V 0 1 0.5 V 1 0 1.5 V Maximum input voltage for full scale ADC output VINMAX 1 1 0.75 V PGA = FFhex V375 TIMES2 0 0 40 mV 0 1 20 mV 1 0 60 mV Minimum input voltage for full scale ADC output VINMIN 1 1 30 mV PGA Minimum gain GNTMIN TIMES2=0, V375=1 0 dB Minimum gain GTMIN TIMES2=1, V375=1 5 6 7 dB Maximum gain GNTMAX TIMES2=0, V375=1 27 28 29 dB Maximum gain GTMAX TIMES2=1, V375=1 33 34 35 dB LSB step size GLSB 0.11 dB Resolution 8 Bits PGA maximum differential non-linearity PDNL LSB PGA maximum integral non-linearity PINL LSB |
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