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PIC16F876ATI/ML Datasheet(PDF) 196 Page - Microchip Technology |
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PIC16F876ATI/ML Datasheet(HTML) 196 Page - Microchip Technology |
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196 / 234 page  PIC16F87XA DS39582B-page 194 2003 Microchip Technology Inc. TABLE 17-14: A/D CONVERTER CHARACTERISTICS:PIC16F873A/874A/876A/877A (INDUSTRIAL) PIC16LF873A/874A/876A/877A (INDUSTRIAL) Param No. Sym Characteristic Min Typ† Max Units Conditions A01 NR Resolution — — 10-bits bit 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 A06 EOFF Offset Error — — < ± 2 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A07 EGN Gain Error — — < ± 1 LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A10 — Monotonicity — guaranteed(3) —— VSS ≤ VAIN ≤ VREF A20 VREF Reference Voltage (VREF+ – VREF-) 2.0 — VDD + 0.3 V A21 VREF+ Reference Voltage High AVDD – 2.5V AVDD + 0.3V V A22 VREF- Reference Voltage Low AVSS – 0.3V VREF+ – 2.0V V A25 VAIN Analog Input Voltage VSS – 0.3V — VREF + 0.3V V A30 ZAIN Recommended Impedance of Analog Voltage Source —— 2.5 k Ω (Note 4) A40 IAD A/D Conversion Current (VDD) PIC16F87XA — 220 — µA Average current consumption when A/D is on (Note 1) PIC16LF87XA — 90 — µA A50 IREF VREF Input Current (Note 2) — — — — 5 150 µA µA During VAIN acquisition. Based on differential of VHOLD to VAIN to charge CHOLD, see Section 11.1 “A/D Acquisition Requirements”. 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 RA3 pin or VDD pin, whichever is selected as reference input. 3: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes. 4: Maximum allowed impedance for analog voltage source is 10 k Ω. This requires higher acquisition time. |
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