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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega128 датащи(PDF) 325 Page - ATMEL Corporation |
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ATmega128 датащи(HTML) 325 Page - ATMEL Corporation |
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325 / 386 page  325 2467S–AVR–07/09 ATmega128 ADC Characteristics Notes: 1. Values are guidelines only. 2. Minimum for AVCC is 2.7V. 3. Maximum for AVCC is 5.5V Table 135. ADC Characteristics, Single Ended Channels Symbol Parameter Condition Min(1) Typ(1) Max(1) Units Resolution Single Ended Conversion 10 Bits Absolute Accuracy (Including INL, DNL, Quantization Error, Gain and Offset Error) Single Ended Conversion VREF = 4V, VCC = 4V ADC clock = 200 kHz 1.5 LSB Single Ended Conversion VREF = 4V, VCC = 4V ADC clock = 1 MHz 3.25 LSB Single Ended Conversion VREF = 4V, VCC = 4V ADC clock = 200 kHz Noise Reduction mode 1.5 LSB Single Ended Conversion VREF = 4V, VCC = 4V ADC clock = 1 MHz Noise Reduction mode 3.75 LSB Integral Non-Linearity (INL) Single Ended Conversion V REF = 4V, VCC = 4V ADC clock = 200 kHz 0.75 LSB Differential Non-Linearity (DNL) Single Ended Conversion V REF = 4V, VCC = 4V ADC clock = 200 kHz 0.5 LSB Gain Error Single Ended Conversion V REF = 4V, VCC = 4V ADC clock = 200 kHz 1LSB Offset error Single Ended Conversion V REF = 4V, VCC = 4V ADC clock = 200 kHz 1LSB Clock Frequency 50 1000 kHz Conversion Time 13 260 µs AVCC Analog Supply Voltage VCC - 0.3 (2) VCC + 0.3 (3) V VREF Reference Voltage 2.0 AVCC V V IN Input Voltage GND V REF V Input Bandwidth 38.5 kHz V INT Internal Voltage Reference 2.3 2.56 2.7 V RREF Reference Input Resistance 32 k Ω RAIN Analog Input Resistance 55 100 M Ω |
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