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PIC18F4685-I/SP Datasheet(PDF) 453 Page - Microchip Technology |
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PIC18F4685-I/SP Datasheet(HTML) 453 Page - Microchip Technology |
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453 / 484 page  © 2007 Microchip Technology Inc. Preliminary DS39761B-page 451 PIC18F2682/2685/4682/4685 TABLE 27-24: A/D CONVERTER CHARACTERISTICS: PIC18F2682/2685/4682/4685 (INDUSTRIAL) PIC18LF2682/2685/4682/4685 (INDUSTRIAL) Param No. Sym Characteristic Min Typ Max Units Conditions A01 NR Resolution — — 10 bit ΔVREF ≥ 3.0V A03 EIL Integral Linearity Error — — <±1 LSb ΔVREF ≥ 3.0V A04 EDL Differential Linearity Error — — <±1 LSb ΔVREF ≥ 3.0V A06 EOFF Offset Error — — <±1 LSb ΔVREF ≥ 3.0V A07 EGN Gain Error — — <±1 LSb ΔVREF ≥ 3.0V A10 — Monotonicity Guaranteed(1) — A20 ΔVREF Reference Voltage Range (VREFH – VREFL) 3— AVDD – AVSS V For 10-bit resolution A21 VREFH Reference Voltage High AVSS + 3.0V — AVDD + 0.3V V For 10-bit resolution A22 VREFL Reference Voltage Low AVSS – 0.3V — AVDD – 3.0V V For 10-bit resolution A25 VAIN Analog Input Voltage VREFL —VREFH V A28 AVDD Analog Supply Voltage VDD – 0.3 — VDD + 0.3 V A29 AVSS Analog Supply Voltage VSS – 0.3 — VSS + 0.3 V A30 ZAIN Recommended Impedance of Analog Voltage Source —— 2.5 k Ω A40 IAD A/D Conversion Current (VDD) PIC18FXXXX — 180 — μA Average current consumption when A/D is on (Note 2) PIC18LFXXXX — 90 — μAVDD = 2.0V; average current consumption when A/D is on (Note 2) A50 IREF VREF Input Current (Note 3) — — — — ±5 ±150 μA μA During VAIN acquisition. During A/D conversion cycle. Note 1: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes. 2: 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. 3: VREFH current is from RA3/AN3/VREF+ pin or AVDD, whichever is selected as the VREFH source. VREFL current is from RA2/AN2/VREF- pin or AVSS, whichever is selected as the VREFL source. |
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