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ADT7476AARQZ-REEL7 Arkusz danych(PDF) 3 Page - Analog Devices |
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ADT7476AARQZ-REEL7 Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 72 page ADT7476A Rev. 0 | Page 3 of 72 SPECIFICATIONS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.1 Table 1. Parameter Min Typ Max Unit Test Conditions/Comments POWER SUPPLY Supply Voltage 3.0 3.3 3.6 V Supply Current, ICC 1.5 3 mA Interface inactive, ADC active TEMP-TO-DIGITAL CONVERTER Local Sensor Accuracy ±0.5 ±1.5 °C 0°C ≤ TA ≤ 85°C ±2.5 °C –40°C ≤ TA ≤ 125°C Resolution 0.25 °C Remote Diode Sensor Accuracy ±0.5 ±1.5 °C 0°C ≤ TA ≤ 85°C ±2.5 °C –40°C ≤ TA ≤ 125°C Resolution 0.25 °C Remote Sensor Source Current 180 μA High level 11 μΑ Low level ANALOG-TO-DIGITAL CONVERTER (INCLUDING MUX AND ATTENUATORS) Total Unadjusted Error (TUE) ±2 % For 12 V channel ±1.5 % For all other channels Differential Nonlinearity (DNL) ±1 LSB 8 bits Power Supply Sensitivity ±0.1 %/V Conversion Time (Voltage Input) 11 ms Averaging enabled Conversion Time (Local Temperature) 12 ms Averaging enabled Conversion Time (Remote Temperature) 38 ms Averaging enabled Total Monitoring Cycle Time 145 ms Averaging enabled Total Monitoring Cycle Time 19 ms Averaging disabled Input Resistance 70 120 kΩ For VCCP channel 70 114 kΩ For all other channels FAN RPM-TO-DIGITAL CONVERTER Accuracy ±6 % 0°C ≤ TA ≤ 70°C ±10 % −40°C ≤ TA ≤ +120°C Full-Scale Count 65,535 Nominal Input RPM 109 RPM Fan count = 0xBFFF 329 RPM Fan count = 0x3FFF 5,000 RPM Fan count = 0x0438 10,000 RPM Fan count = 0x021C OPEN-DRAIN DIGITAL OUTPUTS, PWM1 TO PWM3, XTO Current Sink, IOL 8.0 mA Output Low Voltage, VOL 0.4 V IOUT = −8.0 mA High Level Output Current, IOH 0.1 20 μA VOUT = VCC OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA) Output Low Voltage, VOL 0.4 V IOUT = −4.0 mA High Level Output Current, IOH 0.1 1.0 μA VOUT = VCC SMBus DIGITAL INPUTS (SCL, SDA)2 Input High Voltage, VIH 2.0 V Input Low Voltage, VIL 0.4 V Hysteresis 500 mV |
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