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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DSPIC30F3012AT20E/ML датащи(PDF) 183 Page - Microchip Technology |
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DSPIC30F3012AT20E/ML датащи(HTML) 183 Page - Microchip Technology |
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183 / 205 page  © 2006 Microchip Technology Inc. DS70139E-page 181 dsPIC30F2011/2012/3012/3013 TABLE 20-37: 12-BIT A/D CONVERSION TIMING REQUIREMENTS AC CHARACTERISTICS Standard Operating Conditions: 2.7V to 5.5V (unless otherwise stated) TABLE 20-38: OPERATING TEMPERATURE-40°C ≤ TA ≤ +85°C FOR INDUSTRIAL -40°C ≤ TA ≤ +125°C FOR EXTENDED Param No. Symbol Characteristic Min. Typ Max. Units Conditions Clock Parameters AD50 TAD A/D Clock Period — 334 — ns VDD = 3-5.5V (Note 1) AD51 tRC A/D Internal RC Oscillator Period 1.2 1.5 1.8 μs— Conversion Rate AD55 tCONV Conversion Time — 14 TAD ns — AD56 FCNV Throughput Rate — 200 — ksps VDD = VREF = 5V AD57 TSAMP Sampling Time — 1 TAD —ns VDD = 3-5.5V source resistance RS = 0-2.5 k Ω Timing Parameters AD60 tPCS Conversion Start from Sample Trigger —1 TAD —ns — AD61 tPSS Sample Start from Setting Sample (SAMP) Bit 0.5 TAD —1.5 TAD ns — AD62 tCSS Conversion Completion to Sample Start (ASAM = 1) —0.5 TAD —ns — AD63 tDPU Time to Stabilize Analog Stage from A/D Off to A/D On —20 — μs— Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. 2: These parameters are characterized but not tested in manufacturing. |
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