Datasheet AD7723 (Analog Devices) - 6

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AD7723 B Version Parameter Test Conditions/Comments Min Typ Max Unit
LOGIC OUPUTS VOH, Output High Voltage |IOUT| = 200 µA 4.0 V VOL, Output Low Voltage |IOUT| = 1.6 mA 0.4 V POWER SUPPLIES AVDD 4.75 5.25 V IAVDD HALF_PWR = Logic Low 50 60 mA HALF_PWR = Logic High 25 33 mA DVDD 4.75 5.25 V IDVDD HALF_PWR = Logic Low 25 35 mA HALF_PWR = Logic High 15 20 mA Power Consumption6 Standby Mode 200 µW 1 Operating temperature range is −40°C to +85°C (B: Version). 2 Typical values for SNR apply for parts soldered directly to the PCB ground plane. 3 Dynamic specifications apply for input signal frequencies from dc to 0.0240 × fCLKIN in decimate by 16 mode and from dc to 0.0120 × fCLKIN in decimate by 32 mode. 4 When using the internal reference, THD and SFDR specifications apply only to input signals above 10 kHz with a 10 µF decoupling capacitor between REF2 and AGND2. At frequencies below 10 kHz, THD degrades to 84 dB and SFDR degrades to 86 dB. 5 Gain error excludes reference error. 6 CLKIN and digital inputs static and equal to 0 or DVDD. Rev. C | Page 5 of 32 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT DESCRIPTION APPLYING THE AD7723 ANALOG INPUT RANGE ANALOG INPUT DRIVING THE ANALOG INPUTS APPLYING THE REFERENCE CLOCK GENERATION SYSTEM SYNCHRONIZATION DATA INTERFACING PARALLEL INTERFACE SERIAL INTERFACE TWO-CHANNEL MULTIPLEXED OPERATION SERIAL INTERFACE TO DSPs AD7723 TO ADSP-21xx INTERFACE AD7723 TO SHARC INTERFACE AD7723 TO DSP56002 INTERFACE AD7723 TO TMS320C5x INTERFACE GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE