link to page 4 link to page 4 link to page 10 link to page 12 link to page 6 link to page 5 link to page 5 link to page 5 AD7482ParameterMinTypMaxUnitTest Conditions/Comments LOGIC INPUTS Input High Voltage, VINH VDRIVE − 1 V Input Low Voltage, VINL 0.4 V Input Current, IIN ±1 μA Input Capacitance, C 4 IN 10 pF LOGIC OUTPUTS Output High Voltage, VOH 0.7 × VDRIVE V Output Low Voltage, VOL 0.4 V Floating State Leakage Current ±10 μA Floating State Output Capacitance4 10 pF Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 300 ns Track-and-Hold Acquisition Time (tACQ) 70 ns Sine wave input 70 ns Full-scale step input Throughput Rate 2.5 MSPS Parallel Mode 1 3 MSPS Parallel Mode 2 POWER REQUIREMENTS AVDD 5 V ±5% DVDD 5 V ±5% VDRIVE 2.7 5.25 V IDD Normal Mode (Static) 13 mA CS and RD = Logic 1 Normal Mode (Operational) 20 mA Nap Mode 0.5 mA Standby Mode 0.5 2 μA Power Dissipation Normal Mode (Operational) 100 mW Nap Mode 2.5 mW Standby Mode5 10 μW 1 SINAD figures quoted include external analog input circuit noise contribution of approximately 1 dB. 2 See the Typical Performance Characteristics section for analog input circuits used. 3 See the Terminology section. 4 Sample tested @ 25°C to ensure compliance. 5 Digital input levels at DGND or VDRIVE. Rev. B | Page 4 of 20 Document Outline Features Functional Block Diagram General Description Revision History Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Circuit Description Converter Operation Analog Input ADC Transfer Function Power Saving Offset/Overrange Parallel Interface Reading Data from the AD7482 Writing to the AD7482 Driving the CONVST Pin Typical Connection Board Layout and Grounding Outline Dimensions Ordering Guide
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