Do a search for an op amp datasheet that hasn’t been used in this class. Provide a link to the op amp that you investigate. Explain if it is for a unique type of application and some of its main characteristics.
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Q5. If you were to choose an Op-amp to implement an amplifier circuit for picking up ECG (electrocardiographic) pulses from adhesive electrodes, which type of op-amp should you choose? Should it be an instrumentation op-amp (INA121, AD620, etc), a FET-input op-amp (AD547, OPA128, etc), or a BJT-input op-amp (uA741, OP27, etc)? Perform an internet search on the datasheet of these op-amps. Compare their performance characteristics. Provide THREE justifications to support your decision.
Sri K.
Design a circuit from figure 1, in Multisim. Use 1309 op-amp if it is available. If not, then LM358. Datasheet for LM358 is provided below. Note that it is a bit different from the one that we used in lab, since -Vss can be grounded for 358, and for ours 1309 it doesn't work in that way. b. What is the voltage gain and what is determined by it? Measure the Vout at Wheatstone bridge, measure Vout at op-amp. Record measurements in table below. Add a 1 k̦ potentiometer in parallel with one bridge resistor. Measure the voltage across potentiometer and its parallel resistance. Is it higher or lower that the rest of the bridge circuit? Why is it so? Change the value of potentiometer and measure Vout at bridge, at op-amp and across potentiometer and its parallel resistance, for three different values. Record measurements in table. f. Import a printoff of Multisim circuit containing voltmeters for one measurement.
Adi S.
Assume an operational amplifier is working on inverting amplifer in which it takes input resistance and feedback resistance of 30 ohm and 60 ohm respectively. If input voltage is applied at 150 volt then examine following parameters1.Evaluate over gain of amplifier2.Evaluate the gain of opamp if input voltage is applied on non inverting amplifier3.Calculate output voltage of amplifier4.If input voltage is changed from inverting terminal to non inverting terminal then calculate its output voltage5. If we add one more input resistance of 40 ohm at inverting terminal at 20 voit input supply voltage and working as adder then calculate the output voltage.
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