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ADT7466ARQZ-REEL7 Datasheet(PDF) 3 Page - Analog Devices |
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ADT7466ARQZ-REEL7 Datasheet(HTML) 3 Page - Analog Devices |
3 / 48 page ADT7466 Rev. 0 | Page 3 of 48 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 5.5 V Supply Current, ICC 1.4 3 mA Interface inactive, ADC active 30 70 µA Standby mode, digital inputs low TEMPERATURE-TO-DIGITAL CONVERTER Local Sensor Accuracy ±1 °C 20°C ≤ TA ≤ 60°C; VCC = 3.3 V ±3 °C −40°C ≤ TA ≤ +125°C; VCC = 3.3 V Resolution 0.25 °C Remote Diode Sensor Accuracy ±1 °C 20°C ≤ TA ≤ 60°C; −40°C ≤ TD ≤ +125°C; VCC = 3.3 V ±3 °C −40°C ≤TA ≤ +105°C; −40°C ≤ TD ≤ +125°C; VCC = 3.3 V ±5 °C −40°C ≤ TA ≤ +125°C; −40°C ≤ TD ≤ +125°C Resolution 0.25 °C Remote Sensor Source Current 192 µA High level 72 µA Mid level 12 µA Low level Series Resistance Cancellation 0 2 kΩ Maximum resistance in series with thermal diode that can be cancelled out THERMISTOR-TO-DIGITAL CONVERTER Temperature Range 30 100 °C Range over which specified accuracy is achieved. Wider range can be used with less accuracy. Resolution 0.25 °C Accuracy ±2 °C Using specified thermistor and application circuit over specified temperature range ANALOG-TO-DIGITAL CONVERTER Input Voltage Range 0 VREF V VREF = 2.25V Total Unadjusted Error (TUE) ±1 ±2.5 % Differential Nonlinearity (DNL) ±1 LSB Power Supply Sensitivity ±1 %/V Conversion Time (AIN Input) 8.30 8.65 ms Averaging enabled Conversion Time (Local Temperature) 8.63 8.99 ms Averaging enabled Conversion Time (Remote Temperature) 35.22 36.69 ms Averaging enabled Conversion Time (VCC) 7.93 8.26 ms Averaging enabled Total Monitoring Cycle Time 68.38 71.24 ms Averaging enabled, Pin 11 and Pin 12 configured for AIN/TH monitoring (see Table 15) Total Monitoring Cycle Time 87 90.63 ms Averaging enabled, Pin 11 and Pin 12 configured for REM2 monitoring (see Table 15) FAN RPM-TO-DIGITAL CONVERTER Accuracy ±4 % Full-Scale Count 65,535 Nominal Input RPM 109 RPM Fan count = 0xBFFF 329 RPM Fan count = 0x3FFF 5000 RPM Fan count = 0x0438 10000 RPM Fan count = 0x021C Internal Clock Frequency 78.64 81.92 85.12 kHz |
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