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ADT7318ARQZ-REEL7 Datasheet(PDF) 4 Page - Analog Devices |
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ADT7318ARQZ-REEL7 Datasheet(HTML) 4 Page - Analog Devices |
4 / 44 page ADT7316/ADT7317/ADT7318 Rev. B | Page 4 of 44 Parameter1 Min Typ Max Unit Conditions/Comments CONVERSION TIMES Single channel mode. Slow ADC VDD 11.4 ms Averaging (16 samples) on. 712 μs Averaging off. Internal Temperature 11.4 ms Averaging (16 samples) on. 712 μs Averaging off. External Temperature 24.22 ms Averaging (16 samples) on 1.51 ms Averaging off. Fast ADC VDD 712 μs Averaging (16 samples) on. 44.5 μs Averaging off. Internal Temperature 2.14 ms Averaging (16 samples) on. 134 μs Averaging off. External Temperature 14.25 ms Averaging (16 samples) on. 890 μs Averaging off. ROUND ROBIN UPDATE RATE4 Time to complete one measurement cycle through all channels. Slow ADC at 25°C 59.95 ms Averaging on . 6.52 ms Averaging off . Fast ADC at 25°C 19.59 ms Averaging on . 2.89 ms Averaging off . DAC EXTERNAL REFERENCE INPUT5 VREF Input Range 1 VDD V Buffered reference mode. VREF Input Range 0.25 VDD V Unbuffered reference mode. VREF Input Impedance 37 45 kΩ Unbuffered reference mode. 0 V to 2 VREF output range. 74 90 kΩ Unbuffered reference mode. 0 V to VREF output range. >10 MΩ Buffered reference mode and power-down mode. Reference Feedthrough −90 dB Frequency = 10 kHz. Channel-to-Channel Isolation −75 dB Frequency = 10 kHz. ON-CHIP REFERENCE Reference Voltage5 2.2662 2.28 2.2938 V Temperature Coefficient5 80 ppm/°C OUTPUT CHARACTERISTICS5 Output Voltage6 0.001 VDD to 0.001 V This is a measure of the minimum and maximum drive capability of the output amplifier. DC Output Impedance 0.5 Ω Short-Circuit Current 25 mA VDD = 5 V. 16 mA VDD = 3 V. Power-Up Time 2.5 μs Coming out of power-down mode. VDD = 5 V. 5 μs Coming out of power-down mode. VDD = 3.3 V. DIGITAL INPUTS5 Input Current ±1 μA VIN = 0 V to VDD. Input Low Voltage, VIL 0.8 V Input High Voltage, VIH 1.89 V Pin Capacitance 3 10 pF All digital inputs. SCL, SDA Glitch Rejection 50 ns Input filtering suppresses noise spikes of less than 50 ns. LDAC Pulse Width 20 ns Edge triggered input. |
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