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A sensor interface circuit containing a light sensor (represented by the variable resistor Rx) is connected to an 4-bit ADC, as shown below. The parameters of the circuit are: Vs= 10 V R = 2.7 kiloohms 1) If the variation of Rx is from 3.3 kiloohms < Rx <8.2 kiloohms, what is the range of input voltage (VIN) to the ADC? 2) The 4-bit ADC is chosen so that the voltage range it can encode is equal to the range of the input voltage (VIN). 3) What is the voltage resolution of the ADC? At a particular instant, the input voltage to the ADC is 4.155 V, what is the ADC output (D3 D2 D1 Do)?

A sensor interface circuit containing a light sensor (represented by the variable resistor Rx) is connected to an 4-bit ADC, as shown below. The parameters of the circuit are: Vs= 10 V R = 2.7 kiloohms 1) If the variation of Rx is from 3.3 kiloohms < Rx <8.2 kiloohms, what is the range of input voltage (VIN) to the ADC? 2) The 4-bit ADC is chosen so that the voltage range it can encode is equal to the range of the input voltage (VIN). 3) What is the voltage resolution of the ADC? At a particular instant, the input voltage to the ADC is 4.155 V, what is the ADC output (D3 D2 D1 Do)?

Introductory Circuit Analysis (13th Edition)
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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Vs Vs= 10 V R = 2.7 kiloohms Rx R VIN IN Answers: 1) 2.477V ≤ Vin < 4.5V 2) 0.1264V 3) 1101 VCC ADC VDD A sensor interface circuit containing a light sensor (represented by the variable resistor Rx) is connected to an 4-bit ADC, as shown below. The parameters of the circuit are: D3 •D₂ •D₁ Do 1) If the variation of Rx is from 3.3 kiloohms < Rx <8.2 kiloohms, what is the range of input voltage (VIN) to the ADC? 2) The 4-bit ADC is chosen so that the voltage range it can encode is equal to the range of the input voltage (VIN). 3) What is the voltage resolution of the ADC? At a particular instant, the input voltage to the ADC is 4.155 V, what is the ADC output (D3 D2 D1 Do)?
Transcribed Image Text:Vs Vs= 10 V R = 2.7 kiloohms Rx R VIN IN Answers: 1) 2.477V ≤ Vin < 4.5V 2) 0.1264V 3) 1101 VCC ADC VDD A sensor interface circuit containing a light sensor (represented by the variable resistor Rx) is connected to an 4-bit ADC, as shown below. The parameters of the circuit are: D3 •D₂ •D₁ Do 1) If the variation of Rx is from 3.3 kiloohms < Rx <8.2 kiloohms, what is the range of input voltage (VIN) to the ADC? 2) The 4-bit ADC is chosen so that the voltage range it can encode is equal to the range of the input voltage (VIN). 3) What is the voltage resolution of the ADC? At a particular instant, the input voltage to the ADC is 4.155 V, what is the ADC output (D3 D2 D1 Do)?
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