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ADUC831 Datasheet(PDF) 4 Page - Analog Devices |
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ADUC831 Datasheet(HTML) 4 Page - Analog Devices |
4 / 76 page REV. 0 –4– ADuC831 Parameter VDD = 5 V VDD = 3 V Unit Test Conditions/Comments DAC CHANNEL SPECIFICATIONS 12, 13 Internal Buffer Disabled DC ACCURACY 10 Resolution 12 12 Bits Relative Accuracy ±3 ±3LSB typ Differential Nonlinearity 11 –1 –1 LSB max Guaranteed 12-bit Monotonic ±1/2 ±1/2 LSB typ Offset Error ±5 ±5 mV max VREF Range Gain Error –0.3 –0.3 % typ VREF Range Gain Error Mismatch 4 0.5 0.5 % max % of Full-Scale on DAC1 ANALOG OUTPUTS Voltage Range_0 0 to VREF 0 to VREF V typ DAC VREF = 2.5 V REFERENCE INPUT/OUTPUT REFERENCE OUTPUT 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 ±100 ±100 ppm/ ∞C typ Internal VREF Power-On Time 80 80 ms typ EXTERNAL REFERENCE INPUT 15 Voltage Range (VREF) 4 0.1 0.1 V min VREF and CREF Pins Shorted VDD VDD V max Input Impedance 20 20 k W typ Input Leakage 1 1 mA max Internal Band Gap Deselected via ADCCON1.6 POWER SUPPLY MONITOR (PSM) DVDD Trip Point Selection Range 2.63 V min Four Trip Points Selectable in 4.37 V max This Range Programmed via TPD1–0 in PSMCON DVDD Power Supply Trip Point Accuracy ±3.5 % max WATCHDOG TIMER (WDT) 4 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 Retention 18 100 100 Years min DIGITAL INPUTS Input High Voltage (VINH) 4 2.4 2 V min Input Low Voltage (VINL) 4 0.8 0.4 V max Input Leakage Current (Port 0, EA) ±10 ±10 mA max VIN = 0 V or VDD ±1 ±1 mA typ VIN = 0 V or VDD Logic 1 Input Current (All Digital Inputs) ±10 ±10 mA max VIN = VDD ±1 ±1 mA typ VIN = VDD Logic 0 Input Current (Port 1, 2, 3) –75 –25 mA max –40 –15 mA typ VIL = 450 mV Logic 1-0 Transition Current (Port 2, 3) –660 –250 mA max VIL = 2 V –400 –140 mA typ VIL = 2 V SPECIFICATIONS (continued) |
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