ECE 520 - VLSI Design (spring 2024) 1. Due in class: Thursday March 28, 2024 Homework #7 Consider the low swing driver of Figure 1, and assume that Vtn0=0.4V, Vtp0=-0.5V. a. What is the voltage swing on the output node (Vout)? Assume y=0. b. Estimate (i) the energy drawn from the supply and (ii) energy dissipated for a OV to 2.5V transition at the input. Assume that the rise and fall times at the input are 0. Repeat the analysis for a 2.5V to 0V transition at the input. c. Compute tpLH (i.e. the time to transition from VOL to (VOH + VOL) /2). Assume the input rise time to be 0. VOL is the output voltage with the input at OV and VOH is the output voltage with the input at 2.5V. Assume that K'n=100uA/V². d. Compute Voн taking into account body effect. Assume y = 0.4V 1/2 and 20F 0.6V for both NMOS and PMOS. VDD 2.5 V = (M)-15μm 'n 'P == 1.5 um 0.25 μm 3 um 0.25 μm in out 2.5V OV CL=150fF Figure 1 Low Swing Driver

ECE 520 - VLSI Design (spring 2024) 1. Due in class: Thursday March 28, 2024 Homework #7 Consider the low swing driver of Figure 1, and assume that Vtn0=0.4V, Vtp0=-0.5V. a. What is the voltage swing on the output node (Vout)? Assume y=0. b. Estimate (i) the energy drawn from the supply and (ii) energy dissipated for a OV to 2.5V transition at the input. Assume that the rise and fall times at the input are 0. Repeat the analysis for a 2.5V to 0V transition at the input. c. Compute tpLH (i.e. the time to transition from VOL to (VOH + VOL) /2). Assume the input rise time to be 0. VOL is the output voltage with the input at OV and VOH is the output voltage with the input at 2.5V. Assume that K'n=100uA/V². d. Compute Voн taking into account body effect. Assume y = 0.4V 1/2 and 20F 0.6V for both NMOS and PMOS. VDD 2.5 V = (M)-15μm 'n 'P == 1.5 um 0.25 μm 3 um 0.25 μm in out 2.5V OV CL=150fF Figure 1 Low Swing Driver

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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