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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega32HVB датащи(PDF) 231 Page - ATMEL Corporation |
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ATmega32HVB датащи(HTML) 231 Page - ATMEL Corporation |
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231 / 273 page  231 8042A–AVR–07/09 ATmega16HVB/32HVB 3. The measured VPTAT voltage must be scaled with the calibration value stored in the VPTAT Calibration Register to get the absolute temperature. The design target accuracy for this parameter assumes an exact calibration temperature. Actual accuracy of this parameter after calibration in Atmel factory test remains to be determined. 32.7 ADC Characteristics 32.7.1 Voltage ADC Characteristics Notes: 1. Value is after Atmel factory offset and gain compensation in production (for details, see Table 29-3, “Signature Row Addressing.,” on page 199) and it includes drift over the whole temperature range. 2. Value not tested in production but guarantied by design and characterization. Table 32-6. T A= -40 to 85°C unless otherwise noted. Parameter Condition Min Typ Max Unit Conversion Time clkVADC = 1 MHz 519 μs Resolution 12 Bits Gain ADC0/1 (Un-scaled) 263 μV/LSB Gain Cell Inputs (x0.2) 1.42 mV/LSB INL(2) ADC0, ADC1 ±1 ±3 LSB CELL1, CELL2, CELL3 ±1 ±3 CELL4 ±2 ±5 Input Voltage range ADC0, ADC1, VTEMP 0 1 V Input Voltage range CELL1 1.8 5 Input Voltage range CELL2 VPV1-GND>1.8V 0 5 Input Voltage range CELL3 VPV2-GND>1.8V 0 5 Input Voltage range CELL4 V PV3-GND>1.8V 0 5 Offset drift(1)(2) ADC0, ADC1 1 LSB CELL1, CELL2, CELL3 1 CELL4 5 Gain drift(1)(2) ADC0, ADC1 6 LSB CELL1, CELL2, CELL3 7 CELL4 15 |
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