D 8.54 Figure P8.54 shows a current source realized using a current mirror with two matched transistors Q1 and Q2. Two equal resistances Rs are inserted in the source leads to increase the output resistance of the current source. If Q2 is operating at gm = 1 mA/V and has VA = 10 V, and if the maximum allowed dc voltage drop across Rs is 0.3 V, what is the maximum available output resistance of the current source? Assume that the voltage at the common-gate node is approximately constant.

8.54 - D 8.54 Figure P8.54 shows a current source realized using a current mirror with two matched transistors Q1 and Q2. Two equal resistances Rs are inserted in the source leads to increase the output resistance of the current source. If Q2 is operating at gm = 1 mA/V and has VA = 10 V, and if the maximum allowed dc voltage drop across Rs is 0.3 V, what is the maximum available output resistance of the current source? Assume that the voltage at the common-gate node is approximately constant.

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images - D 8.54 Figure P8.54 shows a current source realized using a current mirror with two matched transistors Q1 and Q2. Two equal resistances Rs are inserted in the source leads to increase the output resistance of the current source. If Q2 is operating at gm = 1 mA/V and has VA = 10 V, and if the maximum allowed dc voltage drop across Rs is 0.3 V, what is the maximum available output resistance of the current source? Assume that the voltage at the common-gate node is approximately constant.

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