Datasheet AD7903 (Analog Devices) - 5

AD7903 Data Sheet
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, TA = −40°C to +125°C, unless otherwise noted.1
Table 3. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range 2.4 5.1 V Load Current 1 MSPS, VREF = 5 V, each ADC 330 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 10 MHz Aperture Delay VDD = 2.5 V 2.0 ns Aperture Delay Match VDD = 2.5 V 2.0 ns DIGITAL INPUTS Logic Levels VIL VIO > 3 V −0.3 +0.3 × VIO V VIO ≤ 3 V −0.3 +0.1 × VVIO 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 Twos complement Bits Pipeline Delay No delay; conversion results available 0 Samples immediately after conversion is complete VOL ISINK = +500 µA 0.4 V VOH ISOURCE = −500 µA VIO − 0.3 V POWER SUPPLIES VDDx 2.375 2.5 2.625 V VIOx Specified performance 2.3 5.5 V VIOx Range Full Range 1.8 5.5 V IVDDx Each ADC 1.4 1.6 mA IVIOx Each ADC 0.2 0.45 mA Standby Current2, 3 VDD and VIO = 2.5 V, 25°C 0.35 µA Power Dissipation 10 kSPS throughput 140 µW 1 MSPS throughput 12.0 16 mW VDD Only 7.0 mW REF Only 3.3 mW VIO Only 1.7 mW Energy per Conversion 7.0 nJ/sample TEMPERATURE RANGE4 Specified Performance TMIN to TMAX −40 +125 °C 1 In this data sheet, the voltages for the VDDx, VIOx, and REFx pins are indicated by VDD, VIO, and VREF, respectively. 2 With all digital inputs forced to VIOx or to ground as required. 3 During the acquisition phase. 4 Contact Analog Devices, Inc., for the extended temperature range. Rev. B | Page 4 of 28 Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration 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 CS Mode CS Mode, 3-Wire Interface Without Busy Indicator CS Mode, 3-Wire Interface with Busy Indicator CS Mode, 4-Wire Interface Without Busy Indicator CS Mode, 4-Wire Interface with Busy Indicator Chain Mode Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Applications Information Simultaneous Sampling Functional Safety Considerations Layout Evaluating Performance of the AD7903 Outline Dimensions Ordering Guide