Datasheet AD7988-1, AD7988-5 (Analog Devices) - 4

AD7988-1/AD7988-5 Data Sheet
VDD = 2.5 V, VIO = 1.71 V to 5.5 V, VREF = 5 V, TA = –40°C to +125°C, unless otherwise noted.
Table 3. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range 2.4 5.1 V Load Current VREF = 5 V 250 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 10 MHz Aperture Delay VDD = 2.5 V 2.0 ns DIGITAL INPUTS Logic Levels VIL VIO > 3 V –0.3 0.3 × VIO V VIH VIO > 3 V 0.7 × VIO VIO + 0.3 V VIL VIO ≤ 3 V –0.3 0.1 × VIO V VIH VIO ≤ 3 V 0.9 × VIO VIO + 0.3 V IIL −1 +1 µA IIH −1 +1 µA DIGITAL OUTPUTS Data Format Serial 16 bits straight binary Pipeline Delay Conversion results available immediately after completed conversion VOL ISINK = 500 µA 0.4 V VOH ISOURCE = −500 µA VIO − 0.3 V POWER SUPPLIES VDD 2.375 2.5 2.625 V VIO 1.71 5.5 V Standby Current1, 2 VDD and VIO = 2.5 V, 25°C 0.35 µA AD7988-1 Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 10 kSPS throughput 70 µW 100 kSPS throughput 700 µW 1 mW VDD Only 400 µW REF Only 170 µW VIO Only 130 µW AD7988-5 Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 500 kSPS throughput 3.5 5 mW VDD Only 2 mW REF Only 0.85 mW VIO Only 0.65 mW Energy per Conversion 7.0 nJ/sample TEMPERATURE RANGE Specified Performance TMIN to TMAX −40 +125 °C 1 With all digital inputs forced to VIO or GND as required. 2 During the acquisition phase. Rev. F | Page 4 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUTS DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE MODE, 3-WIRE MODE 4-WIRE CHAIN MODE APPLICATIONS INFORMATION INTERFACING TO BLACKFIN® DSP LAYOUT EVALUATING THE PERFORMANCE OF THE AD7988-1/AD7988-5 OUTLINE DIMENSIONS ORDERING GUIDE