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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ATmega32HVB 데이터시트(PDF) 232 Page - ATMEL Corporation |
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ATmega32HVB 데이터시트(HTML) 232 Page - ATMEL Corporation |
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232 / 273 page  232 8042A–AVR–07/09 ATmega16HVB/32HVB 32.7.2 Coulomb Counter ADC Characteristics Notes: 1. Values based on characterization data. 2. After software offset compensation, using the polarity switching (CADPOL) feature. 3. Value includes drift over the whole temperature range. 32.8 Clock Characteristics Notes: 1. The frequency is stored in the Value after factory calibration at 85ºC 2. Value not tested in production, but it is guarantied by design and characterization over the whole temperature range. 3. The actual oscillator frequency is measured in production and stored in the device signature row (for details, see ”Reading the Signature Row from Software” on page 199). Table 32-7. T A= -40 to 85°C unless otherwise noted. Parameter Condition Min Typ Max Unit Conversion Time Instantaneous conversion, clk CC-ADC=32kHz 3.9 ms Accumulated conversion CADAS=11, clkCC-ADC=32kHz 1 s Resolution Instantaneous conversion 13 Bits Accumulated conversion 18 Gain Accumulated conversion, CADVSE=0 1.67 µV/LSB Accumulated conversion, CADVSE=1 0.84 Instantaneous conversion, CADVSE=0 53.7 Instantaneous conversion, CADVSE=1 26.9 Input voltage Range CADVSE = 0 -200 200 mV CADVSE = 1 -100 100 INL(1) TA= 0°- 60°C ± 0.005 ± 0.003 % FSR Offset Error(2) Accumulated conversion, T A= 25°C-7 µV Offset Error Drift(1)(2) Accumulated conversion 30 nV/ °C Gain Error(1)(3) ± 0.4 ± 1 % Gain Error Drift(1) 0.1 Table 32-8. T A= -40 to 85°C unless otherwise noted. Parameter Condition Min Typ Max Unit Calibrated Fast RC Oscillator Frequency After factory calibration at T A=25°C 7.92 8 8.08 MHz Frequency drift(2) With run-time calibration with OSI interface and Slow RC Oscillator as calibration clock 3% Slow RC Oscillator(1) Frequency(3) 91 131 171 kHz Frequency drift 1 % Frequency prediction error 0.5 Ultra Low Power RC Oscillator(1) Frequency(3) 89 128 167 kHz Frequency drift(2) 6% |
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