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AD7416ARZ-REEL7 数据表(PDF) 6 Page - Analog Devices |
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AD7416ARZ-REEL7 数据表(HTML) 6 Page - Analog Devices |
6 / 24 page AD7416/AD7417/AD7418 Rev. I | Page 6 of 24 AD7416 SPECIFICATIONS VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted. Table 2. Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC Accuracy ±2.0 °C TA = −25°C to + 100°C (VDD = 3 V minimum)1 ±3.0 °C TA = −40°C to + 125°C (VDD = 3 V minimum)1 Resolution 10 Bits Temperature Conversion Time 40 μs Update Rate, tR 400 μs OTI Delay 1 × tR 6 × tR ms Depends on fault queue setting Supply Current 1.0 mA I2C active 350 600 μA I2C inactive 0.2 1.5 μA Shutdown mode TOTI Default Temperature 80 °C THYST Default Temperature 75 °C DIGITAL INPUTS Input High Voltage, VIH VDD × 0.7 VDD + 0.5 V Input Low Voltage, VIL −0.3 VDD × 0.3 V Input High Current, IIH +0.005 +1.0 μA VIN = 5 V Input Low Current, IIL −0.005 −1.0 μA VIN = 0 V Input Capacitance, CIN 20 pF All digital inputs DIGITAL OUTPUTS Output Low Voltage, VOL 0.4 V IOL = 3 mA Output High Current 1 μA VOH = 5 V Output Fall Time, tf 250 ns CL = 400 pF, IO = 3 mA OS Output Low Voltage, VOL 0.8 V IOUT = 4 mA AC ELECTRICAL CHARACTERISTICS2 AD7416/AD7417/AD7418 Serial Clock Period, t1 2.5 μs See Figure 4 Data In Setup Time to SCL High, t2 50 ns See Figure 4 Data Out Stable after SCL Low, t3 0 ns See Figure 4 SDA Low Setup Time to SCL Low (Start Condition), t4 50 ns See Figure 4 SDA High Hold Time after SCL High (Stop Condition), t5 50 ns See Figure 4 SDA and SCL Fall Time, t6 300 ns See Figure 4 1 For VDD = 2.7 V to 3 V, TA maximum = 85°C and temperature sensor measurement error = ±3°C maximum. 2 Sample tested during initial release and after any redesign or process change that may affect this parameter. SCL t1 t4 t2 t5 t3 t6 SDA DATA IN SDA DATA OUT Figure 4. Diagram for Serial Bus Timing |
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