4.3 An R-2R DAC ladder of resistors has its output fed through an inverting operational amplifier with a feedback resistance of 2R. If the DAC is 3 bit and the reference voltage is 5 V, determine the resolution of the converter.

4.3 An R-2R DAC ladder of resistors has its output fed through an inverting operational amplifier with a feedback resistance of 2R. If the DAC is 3 bit and the reference voltage is 5 V, determine the resolution of the converter.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

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4.3 An R-2R DAC ladder of resistors has its output fed through an inverting operational amplifier with a feedback
resistance of 2R. If the DAC is 3 bit and the reference voltage is 5 V, determine the resolution of the converter.
4.5 What is the conversion time for a 12-bit ADC with a clock frequency of 1 MHz?

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