- Assume An Nmos Transistor With The Following Parameters Transconductance Parameter K U Cox W L Nominal Threshold Vo 1 (11.7 KiB) Viewed 44 times
- Assume An Nmos Transistor With The Following Parameters Transconductance Parameter K U Cox W L Nominal Threshold Vo 2 (48.93 KiB) Viewed 44 times
- Assume An Nmos Transistor With The Following Parameters Transconductance Parameter K U Cox W L Nominal Threshold Vo 3 (17.22 KiB) Viewed 44 times
Part A2: Common Gate Amplifier Common Gate Amplifiers are not as commonly used as other style of amplifiers, but it still has uses inthe world, for example in microphone amplifiers and RF amplifiers. A common gate amplifier is a style of amplifier where the input voltage is hooked up to the source of the MOSFET instead of the gate (contrary to what the name sounds like). The common gate refers to the common reference voltage set to the gate of the MOSFET. See how it is labeled Vgg instead of Vin. 1. For this part of the lab, design a common gate amplifier that has an Ay of 1.3 (within 10%). You can choose W&L (pick values larger than 5u) to obtain said parameter. Then in Cadence, simulate the conditions and plot Vout and Vin to verify your math. Using the calculator, also plot Av (the plotted Ay should be within 10% of the expected Av of 1.3). This is best done by creatingan AC expression in the calculator and plotting an AC analysis. With your obtained values, can you calculate gm, Rin, and Rout? Given Rp= 1k, Vi=0.711 V, uCox=92uA/V2, VDD=5V, VGG=3V, Vin= 1+0.1sin(ot)V
Voo 2 Rp Vout VGG Vin Figure 4: Common Gate Amplifier 2. Plot Vin & Vout and use the calculator to show Ay.