McqMate
| Q. |
In a small signal differential gain vs input CM level graph, the gain decreases after V2 due to: |
| A. | as the input voltage increases, the output will be clipped |
| B. | when the input voltage to the transistors are high, the transistor enters saturation region and increases the current, which inturn decreases the output voltage = vdd – rd.iss |
| C. | when common mode voltage is greater than or equal to v2, the input transistors enter triode region, the gain begins to fall |
| D. | increasing the input voltage beyond v2 causes the gate oxide to conduct and the gain is reduced |
| Answer» C. when common mode voltage is greater than or equal to v2, the input transistors enter triode region, the gain begins to fall | |
| Explanation: none. | |
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