AD8211 Analog Devices, AD8211 Datasheet
AD8211
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AD8211 Summary of contents
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... Vehicle dynamic controls DC-to-dc converters GENERAL DESCRIPTION The AD8211 is a high voltage, precision current shunt amplifier. It features a set gain of 20 V/V, with a typical ±0.35% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. Excellent common- mode rejection from − ...
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... AD8211 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ............................. 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 3/11—Rev Rev. A Added Automotive Products Information ................. Throughout Changes to General Description, Gain Error Percentage ........... 1 Changes to Table 1 ...
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... Differential input voltage 120 dc, V OPR Figure dc, V OPR Figure 5 T 0.05 V OPR T 4.95 4.9 V OPR 2 Ω 500 kHz 4.5 V/μs 7 μV p-p 70 nV/√Hz 5 1.2 2 > see Figure +125 °C = −0.275 ( 2. AD8211 > see CM < see CM ...
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... AD8211 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Continuous Input Voltage Reverse Supply Voltage Differential Input Voltage HBM (Human Body Model) ESD Rating CDM (Charged Device Model) ESD Rating Operating Temperature Range Storage Temperature Range Output Short-Circuit Duration Stresses above those listed under Absolute Maximum Ratings Rating may cause permanent damage to the device ...
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... IN− +264 Description +466 Buffered Output. +466 Ground. −519 Noninverting Input. −519 Inverting Input. +466 Supply. Rev Page AD8211 OUT AD8211 GND 2 TOP VIEW (Not to Scale IN+ IN– CONNECT Figure 3. Pin Configuration ...
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... AD8211 TYPICAL PERFORMANCE CHARACTERISTICS 1.2 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 –1.2 –40 – TEMPERATURE (°C) Figure 4. Typical Offset vs. Temperature 140 130 COMMON-MODE VOLTAGE > 5V 120 110 100 COMMON-MODE VOLTAGE < 100 1k 10k FREQUNCY (Hz) Figure 5. Typical CMRR vs. Frequency 2500 ...
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... Figure 12. Supply Current vs. Common-Mode Voltage 100mV/DIV 1V/DIV 200 225 250 100mV/DIV 1V/DIV 65 200mV/DIV 2V/DIV 8 65 Figure 15. Differential Overload Recovery (Falling) Rev Page AD8211 INPUT OUTPUT TIME (500ns/DIV) Figure 13. Fall Time INPUT OUTPUT TIME (500ns/DIV) Figure 14. Rise Time INPUT OUTPUT TIME (1µs/DIV) ...
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... AD8211 200mV/DIV 2V/DIV TIME (1µs/DIV) Figure 16. Differential Overload Recovery (Rising) 2V/DIV 0.01/DIV TIME 5µs/DIV) Figure 17. Settling Time (Falling) 2V/DIV 0.01/DIV TIME 5µs/DIV) Figure 18. Settling Time (Rising) INPUT OUTPUT Rev Page 12.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 –40 –30 –20 – ...
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... OUTPUT SINK CURRENT (mA) Figure 22. Output Voltage Range from GND vs. Output Sink Current Rev Page AD8211 ...
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... OUT AD8211 GND Figure 23. Simplified Schematic A load current flowing through the external shunt resistor produces a voltage at the input terminals of the AD8211. The input terminals are connected to Amplifier A1 by Resistor R and Resistor R1. The inverting terminal, which has very high input impedance is held to (V because negligible current flows through Resistor R ...
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... The specified minimum output amplifier voltage is 100 mV to provide sufficient guard- bands. The ability of the AD8211 to work with very small differential inputs, regardless of the common-mode voltage, allows for more dynamic range, accuracy, and flexibility in any current sensing application ...
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... NC 4 Figure 26. Battery-Referenced Shunt Resistor BATTERY LOW-SIDE CURRENT SENSING In systems where low-side current sensing is preferred, the AD8211 provides an integrated solution with great accuracy. Ground noise is rejected, CMRR is typically higher than 90 dB, and output linearity is not compromised, regardless of the input differential voltage ...
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... W = Qualified for Automotive Applications. AUTOMOTIVE PRODUCTS The AD8211WYRJZ models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in automotive applications ...
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... AD8211 NOTES Rev Page ...
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... NOTES Rev Page AD8211 ...
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... AD8211 NOTES ©2007-2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06824-0-3/11(A) Rev Page ...