LMP8602MA NSC [National Semiconductor], LMP8602MA Datasheet
LMP8602MA
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LMP8602MA Summary of contents
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Common Mode, Fixed Gain, Bidirectional Precision Current Sensing Amplifier General Description The LMP8602 and LMP8603 are fixed gain precision ampli- fiers. The parts will amplify and filter small differential signals in the presence of high common mode voltages. The ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 4) Human Body For input pins only For all other pins Machine Model Charge Device Model ...
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Symbol Parameter Output Buffer (From A2 (pin 4) to OUT( pin Input Offset Voltage OS K2 Gain (Note 15) I Input Bias Current of A2 (Note 11 Output Voltage Swing (Notes 12, 13) ...
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Symbol Parameter TCR Output Impedance Filter Resistor Drift F-INT Ouput Voltage Swing OUT Output Buffer (From A2 (pin 4) to OUT( pin Input Offset Voltage OS K2 Gain (Note 15) I Input Bias Current ...
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Block Diagram Connection Diagram Pin Descriptions Pin Power Supply 2 6 Inputs 1 8 Filter Network 3 4 Offset 7 Output for LMP8602 for LMP8603 8-Pin SOIC / MSOP 30083402 Top View Name ...
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... MSOP LMP8602MMX LMP8603MA 8-Pin SOIC LMP8603MAX LMP8603MM 8–Pin MSOP LMP8603MMX www.national.com Package Marking Transport Media 95 Units/Rail LMP8602MA 2.5K Units Tape and Reel 95 Units/Rail LMP8602MM 3.5K Units Tape and Reel 95 Units/Rail LMP8603MA 2.5K Units Tape and Reel 95 Units/Rail LMP8603MM 3.5K Units Tape and Reel 6 NSC Drawing ...
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Typical Performance Characteristics ≤ ≤ 5V, GND = 0V, −22V V 60V, and vs 3. Input Bias Current Over Temperature (+IN and −IN pins ...
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Input Referred Voltage Noise vs. Frequency Gain vs. Frequency LMP8602 CMRR vs. Frequency at V www.national.com 30083410 Gain vs. Frequency LMP8603 30083411 = 3.3V CMRR vs. Frequency 30083428 8 PSRR vs. Frequency 30083417 30083412 = 5V S ...
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Step Response 3. 10kΩ LMP8602 L 30083418 Settling Time (Falling Edge 3.3V S LMP8602 30083420 Settling Time (Rising Edge 3.3V S LMP8602 30083422 Step Response ...
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Step Response 10kΩ LMP8603 L Settling Time (Falling Edge LMP8603 Settling Time (Rising Edge LMP8603 www.national.com = 3.3V S 30083443 = 3.3V Settling Time (Falling Edge 30083445 = 3.3V ...
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Positive Swing vs 3.3V LOAD S Negative Swing vs 3.3V LOAD S Gain Drift Distribution LMP8602 5000 parts 30083437 Positive Swing vs. R 30083413 Negative Swing vs. R 30083414 Gain Drift Distribution ...
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Gain error Distribution at V 5000 parts Gain error Distribution at V 5000 parts CMRR Distribution at V 5000 parts www.national.com = 3.3V LMP8602 Gain error Distribution 30083438 = 5V LMP8602 Gain error Distribution ...
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V Distribution 3. 5000 parts 30083434 TCV Distribution OS 5000 parts 30083436 V Distribution 5000 parts 30083435 www.national.com ...
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Application Information GENERAL The LMP8602 and LMP8603 are fixed gain differential volt- age precision amplifiers with a gain of 50x for the LMP8602, and 100x for the LMP8603. The input common mode voltage range is -22V to +60V when operating ...
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ADDITIONAL SECOND ORDER LOW PASS FILTER The LMP8602/LMP8603 has a third order Butterworth low- pass characteristic with a typical bandwidth of 60 kHz inte- grated in the preamplifier stage of the part. The bandwidth of the output buffer can be ...
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R can be calculated based on the desired value the 2 first step of the design procedure with the following equation: For the gain of 5 for the LMP8602 this results in: For the gain of 10 ...
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For the LMP8603: Given a desired value of the reduced gain G tion the required value for R can be calculated for the r LMP8602 with: and for the LMP8603 with: Increase Gain Figure 4 shows the configuration that can ...
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BIDIRECTIONAL CURRENT SENSING The signal on the A1 and OUT pins is ground-referenced when the OFFSET pin is connected to ground. This means that the output signal can only represent positive values of the current through the shunt resistor, so ...
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LMP8602/LMP8603 and the ADC as illustrat Figure 8. FIGURE 8. Reduce Error When Driving ADCs The external capacitor absorbs the charge that flows when the ADC sampling capacitor is connected. The external ca- pacitor should ...
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LOW SIDE CURRENT SENSING APPLICATION WITH NEGATIVE COMMON MODE TRANSIENTS Figure 10 illustrates the application of the LMP8602/ LMP8603 in a high side sensing application. This application is similar to the low side sensing discussed above, except in FIGURE 10. ...
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BATTERY CURRENT MONITOR APPLICATION This application example shows how the LMP8602/ LMP8603 can be used to monitor the current flowing in and out a battery pack. The fact that the LMP8602/LMP8603 can measure small voltages at a high offset voltage ...
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ADVANCED BATTERY CHARGER APPLICATION The above circuit can be used to realize an advanced battery charger that has the capability to monitor the exact net current that flows in and out the battery as show in Figure 12. The output ...
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Physical Dimensions inches (millimeters) unless otherwise noted 8Pin SOIC NS Package Number M08A 8Pin MSOP NS Package Number MUA08A 23 www.national.com ...
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For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo ...