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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC32MX795F512LT-80I/PF датащи(PDF) 217 Page - Microchip Technology |
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PIC32MX795F512LT-80I/PF датащи(HTML) 217 Page - Microchip Technology |
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217 / 256 page  © 2009-2011 Microchip Technology Inc. DS61156G-page 217 PIC32MX5XX/6XX/7XX TABLE 31-38: ANALOG-TO-DIGITAL CONVERSION TIMING REQUIREMENTS AC CHARACTERISTICS Standard Operating Conditions: 2.3V to 3.6V (unless otherwise stated) Operating temperature -40°C ≤TA ≤+85°C for Industrial -40°C ≤TA ≤+105°C for V-Temp Param. No. Symbol Characteristics Min. Typical(1) Max. Units Conditions Clock Parameters AD50 TAD Analog-to-Digital Clock Period(2) 65 — — ns See Table 31-37 Conversion Rate AD55 TCONV Conversion Time — 12 TAD —— — AD56 FCNV Throughput Rate (Sampling Speed) — — 1000 ksps AVDD = 3.0V to 3.6V — — 400 ksps AVDD = 2.5V to 3.6V AD57 TSAMP Sample Time 1 TAD —— — TSAMP must be ≥ 132 ns Timing Parameters AD60 TPCS Conversion Start from Sample Trigger(3) — 1.0 TAD — — Auto-Convert Trigger (SSRC<2:0> = 111) not selected AD61 TPSS Sample Start from Setting Sample (SAMP) bit 0.5 TAD — 1.5 TAD —— AD62 TCSS Conversion Completion to Sample Start (ASAM = 1)(3) — 0.5 TAD —— — AD63 TDPU Time to Stabilize Analog Stage from Analog-to-Digital Off to Analog-to-Digital On(3) —— 2 μs— Note 1: These parameters are characterized, but not tested in manufacturing. 2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. 3: Characterized by design but not tested. |
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