Q2: DC behavior Vin V 1. Increase PMOS width. 2. Increase NMOS Threshold voltage V₁ tn' 1.5 out 1 ( Left 0.5 Right ----- VM = VDD/2 1.5 In an inverter design, we size the PMOS and NMOS to have equal strength so that the inverter has non-skewed DC behavior, which means switching point VM = V/2. Please answer the impact of following changes on the circuit design, tell if the switching point in the VTC diagram will move Left, or move Right, or Unchanged. } 2

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**Q2: DC Behavior**

In an inverter design, we size the PMOS and NMOS to have equal strength so that the inverter has non-skewed DC behavior, which means the switching point \( V_M = V_{DD}/2 \). Please answer the impact of the following changes on the circuit design, telling if the switching point in the VTC diagram will move Left, or move Right, or remain Unchanged.

1. Increase PMOS width. (____)
2. Increase NMOS Threshold voltage \( V_{tn} \). (____)

**Diagram Explanation:**

- The diagram includes a schematic of a CMOS inverter with \( V_{in} \) as the input voltage and \( V_{out} \) as the output voltage. 
- Next to it is the Voltage Transfer Characteristic (VTC) curve, which shows how the output voltage changes with the input voltage.
- The curve illustrates the inverter switching point \( V_M = V_{DD}/2 \).
- The diagram indicates directional arrows labeled "Left" and "Right" to show potential shifts in the switching point based on changes in the circuit parameters.
Transcribed Image Text:**Q2: DC Behavior** In an inverter design, we size the PMOS and NMOS to have equal strength so that the inverter has non-skewed DC behavior, which means the switching point \( V_M = V_{DD}/2 \). Please answer the impact of the following changes on the circuit design, telling if the switching point in the VTC diagram will move Left, or move Right, or remain Unchanged. 1. Increase PMOS width. (____) 2. Increase NMOS Threshold voltage \( V_{tn} \). (____) **Diagram Explanation:** - The diagram includes a schematic of a CMOS inverter with \( V_{in} \) as the input voltage and \( V_{out} \) as the output voltage. - Next to it is the Voltage Transfer Characteristic (VTC) curve, which shows how the output voltage changes with the input voltage. - The curve illustrates the inverter switching point \( V_M = V_{DD}/2 \). - The diagram indicates directional arrows labeled "Left" and "Right" to show potential shifts in the switching point based on changes in the circuit parameters.
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P-channel Metal-Oxide Semiconductor (PMOS), N-channel Metal-Oxide Semiconductor (NMOS), and Complementary Metal-Oxide Semiconductor (CMOS)
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