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データシートサーチシステム |
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ADT7408 データシート(Datasheet) 3 Page - Analog Devices |
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3 page ![]() ADT7408 Rev. 0 | Page 3 of 24 SPECIFICATIONS All specific ations TA = −20°C to +125°C, VDD = 3.0 V to 3.6 V, unless otherwise noted. Table 1. Parameter Symbol Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC Local Sensor Accuracy (C Grade) ±0.5 ±2.0 °C 75°C ≤ T A ≤ 95°C, 3.0 V ≤ V DD ≤ 3.6 V active range ±1 ±3.0 °C 40°C ≤ T A ≤ 125°C, 3.0 V ≤ V DD ≤ 3.6 V monitor range ±1 ±4.0 °C −20°C ≤ T A ≤ 125°C, 3.0 V ≤ V DD ≤ 3.6 V ADC Resolution 12 Bits Temperature Resolution 0.0625 °C Temperature Conversion Time 60 125 ms Long Term Drift 0.081 °C Drift over 10 years, if part is operated at 55°C EVENT# OUTPUT (OPEN DRAIN) Output Low Voltage, VOL 0.4 V IOL = 3 mA Pin Capacitance 10 pF High Output Leakage Current IOH 0.1 1 μA EVENT# = 3.6 V Rise Time1 tLH 30 ns Fall Time1 tHL 30 ns RON Resistance (Low Output)1 15 Ω Supply and temperature dependent DIGITAL INPUTS Input Current IIH, IIL −1 +1 μA VIN = 0 V to VDD Input Low Voltage VIL 0.8 V 3.0 V ≤ V DD ≤ 3.6 V Input High Voltage VIH 2.1 V 3.0 V ≤ V DD ≤ 3.6 V SCL, SDA Glitch Rejection1 50 ns Input filtering suppresses noise spikes of less than 50 ns Pin Capacitance1 10 pF DIGITAL OUTPUT (OPEN DRAIN) Output Low Current IOL 6 mA SDA forced to 0.6 V Output Low Voltage VOL 0.4 V 3.0 V ≤ V DD ≤ 3.6 V at I OPULL_UP = 350 μA Output High Voltage VOH 2.1 V Output Capacitance1 COUT 10 pF POWER REQUIREMENTS Supply Voltage VDD 3.0 3.3 3.6 V Average Supply Current IDD 240 500 μA Supply Current IDD_CONV 360 550 μA Device current while converting Shutdown Mode at 3.3 V 3 20 μA Average Power Dissipation PD 790 μW VDD = 3.3 V, normal mode at 25°C 1 Guaranteed by design and characterization, not production tested. |