Datasheet AD7822, AD7825, AD7829 (Analog Devices) - 4

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AD7822/AD7825/AD7829 Parameter Version B Unit Test Condition/Comment
LOGIC OUTPUTS Output High Voltage, VOH ISOURCE = 200 μA 4 V min VDD = 5 V ± 10% 2.4 V min VDD = 3 V ± 10% Output Low Voltage, VOL ISINK = 200 μA 0.4 V max VDD = 5 V ± 10% 0.2 V max VDD = 3 V ± 10% High Impedance Leakage Current ±1 μA max High Impedance Capacitance 10 pF max CONVERSION RATE Track-and-Hold Acquisition Time 200 ns max See Circuit Description section Conversion Time 420 ns max POWER SUPPLY REJECTION VDD ± 10% ±1 LSB max POWER REQUIREMENTS VDD 4.5 V min 5 V ± 10%; for specified performance 5.5 V max VDD 2.7 V min 3 V ± 10%; for specified performance 3.3 V max IDD Normal Operation 12 mA max 8 mA typical Power-Down 5 μA max Logic inputs = 0 V or VDD 0.2 μA typ Power Dissipation VDD = 3 V Normal Operation 36 mW max 24 mW typical Power-Down 200 kSPS 9.58 mW typ 500 kSPS 23.94 mW typ 1 See the Terminology section of this data sheet. 2 Refer to the Analog Input section for an explanation of the analog input(s). Rev. C | Page 4 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY CIRCUIT INFORMATION CIRCUIT DESCRIPTION TYPICAL CONNECTION DIAGRAM ADC TRANSFER FUNCTION ANALOG INPUT POWER-UP TIMES POWER VS. THROUGHPUT OPERATING MODES PARALLEL INTERFACE MICROPROCESSOR INTERFACING AD7822/AD7825/AD7829 TO 8051 AD7822/AD7825/AD7829 TO PIC16C6x/PIC16C7x AD7822/AD7825/AD7829 TO ADSP-21xx INTERFACING MULTIPLEXER ADDRESS INPUTS AD7822 STANDALONE OPERATION OUTLINE DIMENSIONS ORDERING GUIDE