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PIC16F72/ML 数据表(PDF) 106 Page - Microchip Technology |
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PIC16F72/ML 数据表(HTML) 106 Page - Microchip Technology |
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106 / 136 page  PIC16F72 DS39597B-page 104 2002 Microchip Technology Inc. TABLE 14-9: A/D CONVERTER CHARACTERISTICS: PIC16F72 (INDUSTRIAL) PIC16LF72 (INDUSTRIAL) Param No. Sym Characteristic Min Typ† Max Units Conditions A01 NR Resolution PIC16F72 —— 8 bits bit VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF PIC16LF72 —— 8 bits bit VREF = VDD = 2.2V A02 EABS Total Absolute Error —— < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A03 EIL Integral Linearity Error —— < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A04 EDL Differential Linearity Error —— < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A05 EFS Full Scale Error —— < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A06 EOFF Offset Error —— < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A10 — Monotonicity (Note 3) — guaranteed —— VSS ≤ VAIN ≤ VREF A20 VREF Reference Voltage 2.5 2.2 — — VDD+0.3 VDD+0.3 V V -40°C to +85°C 0°C to +85°C A25 VAIN Analog Input Voltage VSS - 0.3 — VREF + 0.3 V A30 ZAIN Recommended Impedance of Analog Voltage Source —— 10.0 k Ω A40 IAD A/D Conversion Current (VDD) PIC16F72 — 180 — µA Average current consumption when A/D is on (Note 1). PIC16LF72 — 90 — µA A50 IREF VREF input current (Note 2) N/A — — — ± 5 500 µA µA During VAIN acquisition. During A/D Conversion cycle. * These parameters are characterized but not tested. † Data in “Typ” column is at 5V, 25 °C unless otherwise stated. These parameters are for design guidance only and are not tested. Note 1: When A/D is off, it will not consume any current other than minor leakage current. The power-down current spec includes any such leakage from the A/D module. 2: VREF current is from the RA3 pin or the VDD pin, whichever is selected as a reference input. 3: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes. |
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