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PIC12LC671 数据表(PDF) 105 Page - Microchip Technology |
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PIC12LC671 数据表(HTML) 105 Page - Microchip Technology |
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105 / 129 page  © 1999 Microchip Technology Inc. DS30561B-page 105 PIC12C67X TABLE 12-7: A/D CONVERTER CHARACTERISTICS: PIC12C671/672-04/PIC12CE673/674-04 (COMMERCIAL, INDUSTRIAL, EXTENDED) PIC12C671/672-10/PIC12CE673/674-10 (COMMERCIAL, INDUSTRIAL, EXTENDED) PIC12LC671/672-04/PIC12LCE673/674-04 (COMMERCIAL, INDUSTRIAL) Param No. Sym Characteristic Min Typ† Max Units Conditions A01 NR Resolution — — 8-bits bit VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A02 EABS Total absolute error — — < ±1LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A03 EIL Integral linearity error — — < ±1LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A04 EDL Differential linearity error — — < ±1LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A05 EFS Full scale error — — < ±1LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A06 EOFF Offset error — — < ±1LSb VREF = VDD = 5.12V, VSS ≤ VAIN ≤ VREF A10 — Monotonicity — guaranteed (Note 3) —— VSS ≤ VAIN ≤ VREF A20 VREF Reference voltage 2.5V — VDD + 0.3 V 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) PIC12C67X — 180 — µA Average current con- sumption when A/D is on. (Note 1) PIC12LC67X — 90 — µA A50 IREF VREF input current (Note 2) 10 — — — 1000 10 µA µA During VAIN acquisition. Based on differential of VHOLD to VAIN to charge CHOLD, see Section 8.1. 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 GP1 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. |
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