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ADT7475ARQZ-REEL7 数据表(PDF) 3 Page - Analog Devices |
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ADT7475ARQZ-REEL7 数据表(HTML) 3 Page - Analog Devices |
3 / 68 page ADT7475 Rev. A | Page 3 of 68 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 TEMPERATURE-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) ±1.5 % 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 19 ms Averaging disabled Input Resistance 70 120 kΩ For VCCP channel 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 5000 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) Input High Voltage, VIH 2.0 V Input Low Voltage, VIL 0.4 V Hysteresis 500 mV |
类似零件编号 - ADT7475ARQZ-REEL7 |
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类似说明 - ADT7475ARQZ-REEL7 |
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