Datasheet AD7262 (Analog Devices) - 6

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Data Sheet AD7262 Parameter Min Typ Max Unit Test Conditions/Comments
POWER REQUIREMENTS Digital inputs = 0 V or VDRIVE AVCC 4.75 5.25 V CA_CBVCC, CC_CDVCC 2.7 5.25 V VDRIVE 2.7 5.25 V IDD ADC Normal Mode (Static) 20 31.5 mA AVCC = 5.25 V ADC Normal Mode (Dynamic) 23 33.3 mA AVCC = 5.25 V Shutdown Mode 0.5 1 μA AVCC = 5.25 V, ADCs and comparators powered down Power Dissipation ADC Normal Mode (Static) 105 165 mW ADC Normal Mode (Dynamic) 120 175 mW Shutdown Mode 2.625 5.25 µW 1 These specifications were determined without the use of the gain calibration feature. 2 See the Terminology section. 3 Samples tested during initial release to ensure compliance; they are not subject to production testing. 4 For PGA gain = 1; to use the full analog input range (VCM ± VREF/2) of the AD7262, the VCM voltage should be dropped to lie within a range from 1.95 V to 2.05 V. 5 Refers to Pin VREFA or Pin VREFB. 6 This specification includes the IDD for both comparators. The IDD per comparator is the specified value divided by two. Rev. B | Page 5 of 32 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION COMPARATORS OPERATION ANALOG INPUTS Transfer Function VDRIVE REFERENCE TYPICAL CONNECTION DIAGRAMS Comparator Application Details APPLICATION DETAILS MODES OF OPERATION PIN-DRIVEN MODE GAIN SELECTION POWER-DOWN MODES Power-Up Conditions CONTROL REGISTER ON-CHIP REGISTERS Addressing the On-Chip Registers Writing to a Register Reading from a Register SERIAL INTERFACE CALIBRATION INTERNAL OFFSET CALIBRATION ADJUSTING THE OFFSET CALIBRATION REGISTERS SYSTEM GAIN CALIBRATION MICROPROCESSOR INTERFACING AD7262/AD7262-5 TO ADSP-BF531 APPLICATION HINTS GROUNDING AND LAYOUT PCB DESIGN GUIDELINES FOR LFCSP OUTLINE DIMENSIONS ORDERING GUIDE