Datasheet AD7686 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 500 kSPS 16-BIT PulSAR® A/D Converter in MSOP/QFN |
| Seiten / Seite | 29 / 5 — AD7686. Data Sheet. Table 3. Parameter. Test Conditions/Comments. Min. … |
| Revision | C |
| Dateiformat / Größe | PDF / 573 Kb |
| Dokumentensprache | Englisch |
AD7686. Data Sheet. Table 3. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit
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AD7686 Data Sheet
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = –40°C to +85°C, unless otherwise noted.
Table 3. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range 0.5 VDD + 0.3 V Load Current 500 kSPS, REF = 5 V 100 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 9 MHz Aperture Delay VDD = 5 V 2.5 ns DIGITAL INPUTS Logic Levels VIL –0.3 +0.3 × VIO V VIH 0.7 × 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 Specified performance 4.5 5.5 V VIO Specified performance 2.3 VDD + 0.3 V VIO Range 1.8 VDD + 0.3 V Standby Current1, 2 VDD and VIO = 5 V, 25°C 1 50 nA Power Dissipation VDD = 5 V, 100 SPS throughput 3.75 µW VDD = 5 V, 100 kSPS throughput 3.75 4.3 mW VDD = 5 V, 500 kSPS throughput 15 21.5 mW TEMPERATURE RANGE3 Specified Performance TMIN to TMAX −40 +85 °C 1 With all digital inputs forced to VIO or GND as required. 2 During acquisition phase. 3 Contact sales for extended temperature range. Rev. C | Page 4 of 28 Document Outline Features Applications Functional Block Diagram General Description 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 Input Driver Amplifier Choice Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface CS/ MODE 3-Wire, No Busy Indicator CS/ Mode 3-Wire with Busy Indicator CS/ Mode 4-Wire, No Busy Indicator CS/ Mode 4-Wire with Busy Indicator Chain Mode, No Busy Indicator Chain Mode with Busy Indicator Application Hints Layout Evaluating the Performance of the AD7686 True 16-Bit Isolated Application Example Outline Dimensions Ordering Guide
AD7686 Data Sheet
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, TA = –40°C to +85°C, unless otherwise noted.
Table 3. Parameter Test Conditions/Comments Min Typ Max Unit
REFERENCE Voltage Range 0.5 VDD + 0.3 V Load Current 500 kSPS, REF = 5 V 100 µA SAMPLING DYNAMICS −3 dB Input Bandwidth 9 MHz Aperture Delay VDD = 5 V 2.5 ns DIGITAL INPUTS Logic Levels VIL –0.3 +0.3 × VIO V VIH 0.7 × 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 Specified performance 4.5 5.5 V VIO Specified performance 2.3 VDD + 0.3 V VIO Range 1.8 VDD + 0.3 V Standby Current1, 2 VDD and VIO = 5 V, 25°C 1 50 nA Power Dissipation VDD = 5 V, 100 SPS throughput 3.75 µW VDD = 5 V, 100 kSPS throughput 3.75 4.3 mW VDD = 5 V, 500 kSPS throughput 15 21.5 mW TEMPERATURE RANGE3 Specified Performance TMIN to TMAX −40 +85 °C 1 With all digital inputs forced to VIO or GND as required. 2 During acquisition phase. 3 Contact sales for extended temperature range. Rev. C | Page 4 of 28 Document Outline Features Applications Functional Block Diagram General Description 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 Input Driver Amplifier Choice Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface CS/ MODE 3-Wire, No Busy Indicator CS/ Mode 3-Wire with Busy Indicator CS/ Mode 4-Wire, No Busy Indicator CS/ Mode 4-Wire with Busy Indicator Chain Mode, No Busy Indicator Chain Mode with Busy Indicator Application Hints Layout Evaluating the Performance of the AD7686 True 16-Bit Isolated Application Example Outline Dimensions Ordering Guide