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Design the circuit in Fig. 5.23 to establish a drain voltage of 0.1 V. What is the effective resistance between drain and source at this operating point? Let Vtn = 1 V and kn’(W/L) = 1 mA/V2. Figure 5.23 Circuit for Example 5.5.

Design the circuit in Fig. 5.23 to establish a drain voltage of 0.1 V. What is the effective resistance between drain and source at this operating point? Let Vtn = 1 V and kn’(W/L) = 1 mA/V2. Figure 5.23 Circuit for Example 5.5.

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Design the circuit in Fig. 5.23 to establish a drain voltage of 0.1 V. What is the effective resistance between drain and source at this operating point? Let Vtn = 1 V and kn’(W/L) = 1 mA/V2. Figure 5.23 Circuit for Example 5.5.

Explanation & Steps

For the given circuit, VGS and VDS of NMOS transistor can be used to determine mode of operation of NMOS transistor. Drain current in this mode of operation can be used to determine resistance, RD and effective resistance between drain and source terminal rDS.

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EXERCISE 5.11 If in the circuit of Example 5.5 the value of RD is doubled, find approximate values for ID and VD. Ans. 0.2 mA; 0.05 V Design the circuit in Fig. 5.23 to establish a drain voltage of 0.1 V. What is the effective resistance between drain and source at this operating point? Let Vtn = 1 V and kn’(W/L) = 1 mA/V2. Figure 5.23 Circuit for Example 5.5.

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