Datasheet AD7276, AD7277, AD7278 (Analog Devices) - 6

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AD7276/AD7277/AD7278 Data Sheet Parameter A Grade1, 2 B Grade1, 2 Unit Test Conditions/Comments
POWER REQUIREMENTS V 2.35/3.6 2.35/3.6 V min/max DD I Digital I/Ps 0 V or V DD DD Normal Mode (Static) 0.6 0.6 mA typ V = 3.6 V, SCLK on or off DD Normal Mode (Operational) 5.5 5.5 mA max V = 2.35 V to 3.6 V, f = 3 MSPS DD SAMPLE 3.5 3.5 mA typ V = 3 V DD Partial Power-Down Mode (Static) 34 34 µA typ Full Power-Down Mode (Static) 2 2 µA max −40°C to +85°C, typically 0.1 µA 10 10 µA max 85°C to 125°C Power Dissipation5 Normal Mode (Operational) 19.8 19.8 mW max V = 3.6 V, f = 3 MSPS DD SAMPLE 10.5 10.5 mW typ V = 3 V DD Partial Power-Down 102 102 µW typ V = 3 V DD Full Power-Down 7.2 7.2 µW max V = 3.6 V, −40°C to +85°C DD 1 Temperature range from −40°C to +125°C. 2 Typical specifications are tested with VDD = 3 V and at 25°C. 3 See the Terminology section. 4 Guaranteed by characterization. 5 See the Power vs. Throughput Rate section. Rev. D | Page 6 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7276 SPECIFICATIONS AD7277 SPECIFICATIONS AD7278 SPECIFICATIONS TIMING SPECIFICATIONS—AD7276/AD7277/AD7278 TIMING EXAMPLES Timing Example 1 Timing Example 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Analog Input Digital Inputs MODES OF OPERATION Normal Mode Partial Power-Down Mode Full Power-Down Mode Power-Up Times POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7278 IN A 10 SCLK CYCLE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7276/AD7277/AD7278 to Blackfin Processor APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES