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AT90USB646 Datasheet(PDF) 405 Page - ATMEL Corporation |
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AT90USB646 Datasheet(HTML) 405 Page - ATMEL Corporation |
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405 / 459 page  405 7593H–AVR–11/08 ATmega32U6/AT90USB64/128 30.9 ADC Characteristics Table 30-5. ADC Characteristics Symbol Parameter Condition Min Typ Max Units Resolution Single Ended Conversion 10 Bits Differential Conversion Gain = 1x or 10x 8Bits Differential Conversion Gain = 200x 7Bits Absolute accuracy (Including INL, DNL, quantization error, gain and offset error) Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 200 kHz 1.5 LSB Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 1 MHz LSB Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 200 kHz Noise Reduction Mode 1.5 LSB Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 1 MHz Noise Reduction Mode LSB Absolute accuracy Gain = 1x, 10x, 200x Vref = 4V, Vcc = 5V ADC Clock = 50 - 200 kHz 1LSB Integral Non-Linearity (INL) Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 200 kHz 0.5 1 LSB Integral Non-Linearity (INL) (Accuracy after calibration for offset and gain error) Gain = 1x, 10x, 200x Vref = 4V, Vcc = 5V ADC Clock = 50 - 200 kHz 0.5 1 LSB Differential Non-Linearity (DNL) Single Ended Conversion VREF = 4V, VCC = 4V, ADC clock = 200 kHz 0.3 1 LSB Gain Error Single Ended Conversion VREF = 4V, VCC = 4V, ADC clock = 200 kHz -2 0 +2 LSB Gain = 1x, 10x, 200x -2 0 +2 LSB Offset Error Single Ended Conversion V REF = 4V, VCC = 4V, ADC clock = 200 kHz -2 1 +2 LSB Gain = 1x, 10x, 200x Vref = 4V, Vcc = 5V ADC Clock = 50 - 200 kHz -1 0 +1 LSB Conversion Time Free Running Conversion 65 260 µs Clock Frequency Single Ended Conversion 50 1000 kHz |
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