MCQOPTIONS
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MCQOPTIONS
| 1. |
In an ideal op amp the open-loop gain is 103. The op amp is used in a feedback circuit, and the voltages appearing at two of its three signal terminals are measured as v2 = 0V and v3 = 2V where it is assumed that v1 and v2 are input terminals and v3 is the output terminal. The value of the differential (vd) and common-mode (vcm)signal is |
| A. | V<sub>d</sub> = 2 mV and v<sub>cm</sub> = 1 mv |
| B. | V<sub>d</sub> = 2 mV and v<sub>cm</sub> = -1 mV |
| C. | V<sub>d</sub> = 2 mV and v<sub>cm</sub> = 2mV |
| D. | V<sub>d</sub> = 2 mV and v<sub>cm</sub> = -2mV |
| Answer» C. V<sub>d</sub> = 2 mV and v<sub>cm</sub> = 2mV | |