Datasheet AD7915, AD7916 (Analog Devices) - 4

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AD7915/AD7916 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit
DIGITAL INPUTS Logic Levels VIL VIO > 3 V −0.3 +0.3 × VIO V VIO ≤ 3 V −0.3 +0.1 × VIO V VIH VIO > 3 V 0.7 × VIO VIO + 0.3 V 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, twos complement 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 Specified performance 2.3 5.5 V VIO Range Functional range 1.8 5.5 V Standby Current5, 6 VDD and VIO = 2.5 V, TA = 25°C 0.35 μA AD7915 Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 10 kSPS throughput 70 μW 1 MSPS throughput 7 9 mW VDD Only 4 mW REF Only 1.7 mW VIO Only 1.3 mW AD7916 Power Dissipation VDD = 2.625 V, VREF = 5 V, VIO = 3 V Total 500 kSPS throughput 3.7 4.5 mW VDD Only 2 mW REF Only 0.85 mW VIO Only 0.85 mW Energy per Conversion 7.0 nJ/ sample TEMPERATURE RANGE Specified Performance TMIN to TMAX −40 +125 °C 1 LSB means least significant bit. With the ±5 V input range, 1 LSB is 152.6 μV. 2 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference. 3 All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified. 4 Dynamic range is obtained by oversampling the ADC running at a throughput, fS, of 1 MSPS followed by postdigital filtering with an output word rate of fO. 5 With all digital inputs forced to VIO or ground as required. 6 During acquisition phase. Rev. 0 | Page 4 of 26 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATIONS CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUTS DRIVER AMPLIFIER CHOICE SINGLE TO DIFFERENTIAL DRIVER VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE MODE, 3-WIRE, WITHOUT BUSY INDICATOR MODE 3-WIRE, WITH BUSY INDICATOR MODE, 4-WIRE, WITHOUT BUSY INDICATOR MODE 4-WIRE WITH BUSY INDICATOR CHAIN MODE, WITHOUT BUSY INDICATOR CHAIN MODE WITH BUSY INDICATOR APPLICATIONS INFORMATION INTERFACING TO BLACKFIN DSP LAYOUT EVALUATING AD7915/AD7916 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES