Design the inverter circuit in the below figure to provide VDD = 1.2 V, VOL = 50 mV, and so that the current the supply in the low-output state is 30 μA. The transistor has Vt = 0.4 V, μnCox = 500 μA/V2, and λ = 0. (a) Determine the required values of rDS, RD, and W/L. (b) How much power is drawn from the supply when the output is low? (c) How much power is drawn from the supply when the output is high?
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Design the inverter circuit in the below figure to provide VDD = 1.2 V, VOL = 50 mV, and so that the current the supply in the low-output state is 30 μA. The transistor has Vt = 0.4 V, μnCox = 500 μA/V2, and λ = 0. (a) Determine the required values of rDS, RD, and W/L. (b) How much power is drawn from the supply when the output is low? (c) How much power is drawn from the supply when the output is high?
![D14.1 Design the inverter in Fig. 14.12 (a) to provide VOL = 90 mV and to draw a supply current of 30 μA in the low-output state. Let the transistor be specified to have Vt = 0.4 V, μnCox = 125 μA/V2, and λ = 0. The power supply VDD = 1.8 V. Specify the required values of W/L and RD. How much power is drawn from VDD when the switch is open? Closed? Hint: Recall that for small vDS, rDS ≃ 1 /[(μnCox)(W/L)(VGS − Vt)] Ans. 1.9; 57 kΩ; 0; 54 μW (a)](https://www.doubtrix.com/uploads/editor/6039672077nNqSMZJMLw.png)
![D14.1 Design the inverter in Fig. 14.12 (a) to provide VOL = 90 mV and to draw a supply current of 30 μA in the low-output state. Let the transistor be specified to have Vt = 0.4 V, μnCox = 125 μA/V2, and λ = 0. The power supply VDD = 1.8 V. Specify the required values of W/L and RD. How much power is drawn from VDD when the switch is open? Closed? Hint: Recall that for small vDS, rDS ≃ 1 /[(μnCox)(W/L)(VGS − Vt)] Ans. 1.9; 57 kΩ; 0; 54 μW (a)](https://www.doubtrix.com/uploads/editor/8526437555rxrPKwxBRu.png)
