Prelab- A Analyze the circuit in Figure 4.6. (a) Find as a function of R and I, (asseme the op-amp is ideal). (b) If-250

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Prelab A Analyze The Circuit In Figure 4 6 A Find As A Function Of R And I Asseme The Op Amp Is Ideal B If 250 1 (24.26 KiB) Viewed 31 times

Prelab- A Analyze the circuit in Figure 4.6. (a) Find as a function of R and I, (asseme the op-amp is ideal). (b) If-250A and the desired 4.75V, find the proper value for it. (c) Verify your result by running a SPICE simulation using the 741 op-amp model. Be vare to display voltages on your schematic. (SPICE hint: Most students have found the "Universal Op Amp" works best as your op-amp. Pay special attention to your pine as well as the directions of applied voltages. Use separate DC voltage sources which have been grounded for pin 7 and pin 4.) +5V Lab 4: Electronic Security System 5 SV Figure 46-Current to voltage converter using an op-amp B. For the circuit in Figure 4.7, calculate , Calculate the threshold input voltage, V, that will change the output of the comparator from high to low. Show all calculations and explain your work. RF 20.00 V C. Model the circuit in Figure 4.7 in SPICE for Vi=2V and V.4V. Print out a copy of both schematics with voltages displayed to hand in. Your SPICE simulation and calculations should match 2.240 10k 1k0 Ext www 119 >5.1k0 -5V Figure 4.7-Voltage comparator