Datasheet AD7782 (Analog Devices) - 4

AD7782 Parameter AD7782B Unit Test Conditions
LOGIC INPUTS (continued) XTAL1 Only2 VINL, Input Low Voltage 0.8 V max VDD = 5 V VINH, Input High Voltage 3.5 V min VDD = 5 V VINL, Input Low Voltage 0.4 V max VDD = 3 V VINH, Input High Voltage 2.5 V min VDD = 3 V Input Currents ±1 µA max VIN = VDD –70 µA max VIN = GND, Typically –40 µA at 5 V and –20 µA at 3 V Input Capacitance 10 pF typ All Digital Inputs LOGIC OUTPUTS (Excluding XTAL2) VOH, Output High Voltage2 VDD – 0.6 V min VDD = 3 V, ISOURCE = 100 µA VOL, Output Low Voltage2 0.4 V max VDD = 3 V, ISINK = 100 µA VOH, Output High Voltage2 4 V min VDD = 5 V, ISOURCE = 200 µA VOL, Output Low Voltage2 0.4 V max VDD = 5 V, ISINK = 1.6 mA Floating-State Leakage Current ±10 µA max Floating-State Output Capacitance ±10 pF typ Data Output Coding Offset Binary START-UP TIME From Power-On 300 ms typ POWER REQUIREMENTS Power Supply Voltage VDD – GND 2.7/3.6 V min/max VDD = 3 V nom 4.75/5.25 V min/max VDD = 5 V nom Power Supply Currents IDD Current (Normal Mode)4 1.5 mA max VDD = 3 V, 1.3 mA typ 1.7 mA max VDD = 5 V, 1.5 mA typ IDD (Power-Down Mode, CS = 1) 9 µA max VDD = 3 V, 6 µA typ 24 µA max VDD = 5 V, 20 µA typ NOTES 1Temperature Range –40°C to +85°C. 2Guaranteed by design and/or characterization data on production release. 3When a 28.8 kHz crystal is used, normal mode rejection is improved so that the rejection equals 75 dB at 50 ± 1 Hz and equals 66 dB at 60 ± 1 Hz. 4Normal Mode refers to the case where the ADC is running. Specifications subject to change without notice. REV. A –3–