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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F684 датащи(PDF) 149 Page - Microchip Technology |
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PIC16F684 датащи(HTML) 149 Page - Microchip Technology |
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149 / 192 page  © 2007 Microchip Technology Inc. DS41202F-page 147 PIC16F684 TABLE 15-9: PIC16F684 A/D CONVERTER (ADC) CHARACTERISTICS Standard Operating Conditions (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +125°C Param No. Sym Characteristic Min Typ† Max Units Conditions AD01 NR Resolution — — 10 bits bit AD02 EIL Integral Error — — ±1LSb VREF = 5.12V AD03 EDL Differential Error — — ±1 LSb No missing codes to 10 bits VREF = 5.12V AD04 EOFF Offset Error — — ±1LSb VREF = 5.12V AD07 EGN Gain Error — — ±1LSb VREF = 5.12V AD06 AD06A VREF Reference Voltage(3) 2.2 2.7 —— VDD V Absolute minimum to ensure 1 LSb accuracy AD07 VAIN Full-Scale Range VSS —VREF V AD08 ZAIN Recommended Impedance of Analog Voltage Source —— 10 k Ω AD09* IREF VREF Input Current(3) 10 — 1000 μADuring VAIN acquisition. Based on differential of VHOLD to VAIN. —— 50 μA During A/D conversion cycle. * These parameters are characterized but not tested. † Data in ‘Typ’ column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. Note 1: Total Absolute Error includes integral, differential, offset and gain errors. 2: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes. 3: ADC VREF is from external VREF or VDD pin, whichever is selected as reference input. 4: When ADC is off, it will not consume any current other than leakage current. The power-down current specification includes any such leakage from the ADC module. |
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