Table 2-6.ADC Characteristics, Differential Channels (Unipolar Mode), TA = -40°C to +125°CSymbolParameterConditionMinTypMaxUnits Gain = 1x 10 Bits Resolution Gain = 20x 10 Bits Gain = 1x VREF = 4V, VCC = 5V 10 LSB Absolute accuracy ADC clock = 50 - 200 kHz (Including INL, DNL, and Quantization, Gain and Offset Errors) Gain = 20x VREF = 4V, VCC = 5V 15 LSB ADC clock = 50 - 200 kHz Gain = 1x V = 4V, V = 5V 4 LSB REF CC Integral Non-Linearity (INL) ADC clock = 50 - 200 kHz (Accuracy after Offset and Gain Calibration) Gain = 20x VREF = 4V, VCC = 5V 10 LSB ADC clock = 50 - 200 kHz Gain = 1x 10 LSB Gain Error Gain = 20x 15 LSB Gain = 1x V = 4V, V = 5V 3 LSB REF CC ADC clock = 50 - 200 kHz Offset Error Gain = 20x VREF = 4V, VCC = 5V 4 LSB ADC clock = 50 - 200 kHz Conversion Time Free Running Conversion 70 280 µs Clock Frequency 50 200 kHz V Input Voltage GND V V IN CC VDIFF Input Differential Voltage VREF/Gain V Input Bandwidth 4 kHz A External Reference Voltage 2.0 V - 1.0 V REF CC VINT Internal Voltage Reference 1.0 1.1 1.2 V R Reference Input Resistance 32 k REF R Analog Input Resistance 100 M AIN ADC Conversion Output 0 1023 LSB ATtiny24A/44A/84A [DATASHEET APPENDIX B] 8 8183H–AVR–10/2013 Document Outline Appendix B – ATtiny24A/44A/84A Specification at 125°C 1. Memories 1.1 EEPROM Data Memory 2. Electrical Characteristics 2.1 Absolute Maximum Ratings* 2.2 DC Characteristics 2.3 Speed 2.3.1 ATtiny24A and ATtiny44A 2.3.2 ATtiny84A 2.4 Clock Characteristics 2.4.1 Accuracy of Calibrated Internal Oscillator 2.5 System and Reset Characteristics 2.5.1 Power-On Reset 2.6 Analog Comparator Characteristics 2.7 ADC Characteristics 2.8 Serial Programming Characteristics 2.8.1 ATtiny24A and ATtiny44A 2.8.2 ATtiny84A 3. Typical Characteristics 3.1 ATtiny24A 3.1.1 Current Consumption in Active Mode 3.1.2 Current Consumption in Idle Mode 3.1.3 Current Consumption in Power-down Mode 3.1.4 Current Consumption of Peripheral Units 3.1.5 Pull-up Resistors 3.1.6 Output Driver Strength 3.1.7 Input Threshold and Hysteresis (for I/O Ports) 3.1.8 BOD, Bandgap and Reset 3.1.9 Analog Comparator Offset 3.1.10 Internal Oscillator Speed 3.2 ATtiny44A 3.2.1 Current Consumption in Active Mode 3.2.2 Current Consumption in Idle Mode 3.2.3 Current Consumption in Power-down Mode 3.2.4 Current Consumption of Peripheral Units 3.2.5 Pull-up Resistors 3.2.6 Output Driver Strength 3.2.7 Input Threshold and Hysteresis (for I/O Ports) 3.2.8 BOD, Bandgap and Reset 3.2.9 Analog Comparator Offset 3.2.10 Internal Oscillator Speed 3.3 ATtiny84A 3.3.1 Current Consumption in Active Mode 3.3.2 Current Consumption in Idle Mode 3.3.3 Current Consumption in Power-down Mode 3.3.4 Current Consumption in Reset 3.3.5 Current Consumption of Peripheral Units 3.3.6 Pull-up Resistors 3.3.7 Output Driver Strength 3.3.8 Input Threshold and Hysteresis (for I/O Ports) 3.3.9 BOD, Bandgap and Reset 3.3.10 Analog Comparator Offset 3.3.11 Internal Oscillator Speed 4. Ordering Information 4.1 ATtiny24A 4.2 ATtiny44A 4.3 ATtiny84A 5. Revision History