Datasheet AD4020 (Analog Devices) - 5

AD4020 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit
fIN = 100 kHz, −0.5 dBFS, VREF = 5 V SNR 99 dB THD −100 dB SINAD 96.5 dB fIN = 400 kHz, −0.5 dBFS, VREF = 5 V SNR 92.5 dB THD −94 dB SINAD 90 dB −3 dB Input Bandwidth 10 MHz Aperture Delay 1 ns Aperture Jitter 1 ps rms REFERENCE Voltage Range (VREF) 2.4 5.1 V Current 1.8 MSPS, VREF = 5 V 1.1 mA OVERVOLTAGE CLAMP IIN+/IIN− VREF = 5 V 50 mA VREF = 2.5 V 50 mA VIN+/VIN− at Maximum IIN+/IIN− VREF = 5 V 5.4 V VREF = 2.5 V 3.1 V VIN+/VIN− Clamp On/Off Threshold VREF = 5 V 5.25 5.4 V VREF = 2.5 V 2.68 2.8 V Deactivation Time 360 ns REF Current at Maximum IIN+/IIN− VIN+/VIN− > VREF 100 µA DIGITAL INPUTS Logic Levels Input Voltage Low (VIL) VIO > 2.7 V −0.3 +0.3 × VIO V VIO ≤ 2.7 V −0.3 +0.2 × VIO V Input Voltage High (VIH) VIO > 2.7 V 0.7 × VIO VIO + 0.3 V VIO ≤ 2.7 V 0.8 × VIO VIO + 0.3 V Input Current Low (IIL) −1 +1 µA Input Current High (IIH) −1 +1 µA Input Pin Capacitance 6 pF DIGITAL OUTPUTS Data Format Serial, 20 bits, twos complement Pipeline Delay Conversion results available immediately after completed conversion Output Voltage Low (VOL) ISINK = 500 µA 0.4 V Output Voltage High (VOH) ISOURCE = −500 µA VIO − 0.3 V POWER SUPPLIES VDD 1.71 1.8 1.89 V VIO 1.71 5.5 V Standby Current VDD = 1.8 V, VIO = 1.8 V, TA = 25°C 1.6 µA Power Dissipation VDD = 1.8 V, VIO = 1.8 V, VREF = 5 V 10 kSPS, high-Z mode disabled 83 µW 1 MSPS, high-Z mode disabled 8.3 mW 1.8 MSPS, high-Z mode disabled 15 19 mW 1 MSPS, high-Z mode enabled 10.8 mW 1.8 MSPS, high-Z mode enabled 19 25 mW VDD Only 1.8 MSPS, high-Z mode disabled 9.0 mW REF Only 1.8 MSPS, high-Z mode disabled 5.0 mW Rev. A | Page 4 of 36 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION TRANSFER FUNCTIONS APPLICATIONS INFORMATION TYPICAL APPLICATION DIAGRAMS ANALOG INPUTS Input Overvoltage Clamp Circuit Differential Input Considerations Switched Capacitor Input RC Filter Values DRIVER AMPLIFIER CHOICE Single to Differential Driver High Frequency Input Signals Multiplexed Applications EASE OF DRIVE FEATURES Input Span Compression High-Z Mode Long Acquisition Phase VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE REGISTER READ/WRITE FUNCTIONALITY STATUS WORD /CS MODE, 3-WIRE TURBO MODE /CS MODE, 3-WIRE WITHOUT THE BUSY INDICATOR /CS MODE, 3-WIRE WITH THE BUSY INDICATOR /CS MODE, 4-WIRE TURBO MODE /CS MODE, 4-WIRE WITHOUT THE BUSY INDICATOR /CS MODE, 4-WIRE WITH THE BUSY INDICATOR DAISY-CHAIN MODE LAYOUT GUIDELINES EVALUATING THE AD4020 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE