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ADUC842BS Datasheet(PDF) 3 Page - Analog Devices |
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ADUC842BS Datasheet(HTML) 3 Page - Analog Devices |
3 / 17 page REV. PrB –3– ADuC842 PRELIMINARY TECHNICAL DATA Parameter VDD = 5 V VDD = 3 V Unit Test Conditions/Comments DAC CHANNEL SPECIFICATIONS12,13 Internal Buffer Disabled DC ACCURACY10 Resolution 12 12 Bits Relative Accuracy ± 3 ± 3 LSB typ Differential Nonlinearity11 - 1 - 1 LSB max Guaranteed 12-Bit Monotonic ±1/2 ±1/2 LSB typ Offset Error ±10 ±10 mV max VREF Range Gain Error ± 1 ± 1 % typ VREF Range Gain Error Mismatch 0.5 0.5 % typ % of Full-Scale on DAC1 ANALOG OUTPUTS Voltage Range_0 0 to VREF 0 to VREF V typ DAC VREF = 2.5V REFERENCE INPUT/OUTPUT REFERENCE OUPUT 14 Output Voltage (VREF) 2.5 2.5 V Accuracy ±2.5 ±2.5 % max Of VREF measured at the CREF pin Power Supply Rejection 47 57 dB typ Reference Temperature Coefficient ±20 ±20 ppm/°C typ Internal VREF Power-On Time 80 80 ms typ EXTERNAL REFERNCE INPUT 15 Voltage Range (VREF) 9 0.1 0.1 V min V DD V DD V max Input Impedance 20 20 k Ω typ Input Leakage 1 0 1 0 µA max Internal Band Gap Deselected via ADCCON1.6 POWER SUPPLY MONITOR (PSM) DVDD Trip Point Selection Range 2.63 Vmin Four Trip Points Selectable in 4.37 Vmax This Range Programmed via TPD1–0 in PSMCON DVDD Power Supply Trip Point Accuracy ±3.5 % max WATCH DOG TIMER (WDT) 9 Time-out Period 0 0 ms min Nine Time-out Periods 2000 2000 ms max. Selectable in This Range FLASH/EE MEMORY RELIABILITY CHARACTERISTICS 16 Endurance 17 100,000 100,000 Cycles min Data Retention18 100 100 Years min DIGITAL INPUTS Input High Voltage (VINH) 2.4 V min Input Low Voltage (VINL) 0.8 V max Input Leakage Current (Port 0,1, EA) ±10 µA max VIN = 0 V or VDD ±1 ±1 µA typ VIN = 0 V or VDD Logic 1 Input Current (All Digital Inputs) ±10 µA max VIN = VDD ±1 ±1 µA typ VIN = VDD Logic 0 Input Current (Port 2, 3) –80 µA max –40 –40 µA typ VIL = 0 V Logic 1-0 Transition Current (Port 2, 3) –700 µA max VIL = 2 V –400 –400 µA typ VIL = 2 V CRYSTAL OSCILLATOR Logic Inputs, XTAL1 Only VINL, Input Low Voltage 0.8 0.4 V typ VINH, Input High Voltage 3.5 2.5 V typ |
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