Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 18, Problem 6ST
To determine
The correct answer for the close loop gain from the given options.
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A certain diff-amp has a differential voltage gain of 2000 and a common-mode gain of 0.2. Determine the CMRR.
1, 10,000
O2.10,0000
O3.1000
04. 11000
What is the output current of the amplifier? Does it comply with the KCL at the amplier? Why?
if the Vin is 10mV what would the Vout be? I have 67.67 is this correct and what would the input resistance of the amp be?
Chapter 18 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 18 - When a diff-amp has identical signals on both...Ch. 18 - A high CMRR for a diff-amp means the common-mode...Ch. 18 - Prob. 3TFQCh. 18 - The open-loop voltage gain of an op-amp is also...Ch. 18 - Prob. 5TFQCh. 18 - Prob. 6TFQCh. 18 - In a voltage-follower, the open-loop and...Ch. 18 - Prob. 8TFQCh. 18 - Prob. 9TFQCh. 18 - If the feedback resistor in an amplifier is open,...
Ch. 18 - Which characteristic docs not necessarily apply to...Ch. 18 - In selecting an op-amp. suppose you have several...Ch. 18 - Prob. 3STCh. 18 - Prob. 4STCh. 18 - Prob. 5STCh. 18 - Prob. 6STCh. 18 - Prob. 7STCh. 18 - Prob. 8STCh. 18 - If you know an op-amp's open-loop gain and nothing...Ch. 18 - Prob. 10STCh. 18 - Prob. 11STCh. 18 - The highest possible input resistance is achieved...Ch. 18 - Compare a practical op-amp to an ideal op-amp.Ch. 18 - Two IC op-amps are available to you. Their...Ch. 18 - Identify the type of input and output...Ch. 18 - Prob. 4PCh. 18 - A certain diff-amp has a differential gain of 60...Ch. 18 - A certain diff-amp has a CMRR of 65 dB. If the...Ch. 18 - Identify the type of input mode for each op-amp in...Ch. 18 - Show the common-mode input in Figure 18-37 in an...Ch. 18 - Determine the bias current, IBIAS, given that the...Ch. 18 - Distinguish between input bias current and input...Ch. 18 - A certain op-amp has a CMRR of 250,000. Convert...Ch. 18 - The open-loop gain of a certain op-amp is 175,000....Ch. 18 - The op-amp data sheet specifies a CMRR of 300,000...Ch. 18 - Figure 18-38 shows the output voltage of an op-amp...Ch. 18 - How long does it take the output voltage of an...Ch. 18 - Identify each of the op-amp configurations in...Ch. 18 - For the amplifier in Figure 18-40. determine the...Ch. 18 - Determine the closed-loop gain of each amplifier...Ch. 18 - Find the value of Rf that will produce the...Ch. 18 - Find the gain of each in amplifier in Figure...Ch. 18 - If a signal voltage of 10 mV applied to each...Ch. 18 - Determine the approximate values for each of the...Ch. 18 - Determine the input and output resistances for...Ch. 18 - Repeat Problem 23 for each circuit in Figure...Ch. 18 - Repeat Problem 23 for each circuit in Figure...Ch. 18 - Prob. 26PCh. 18 - Prob. 28PCh. 18 - Prob. 29PCh. 18 - Prob. 30PCh. 18 - Prob. 31PCh. 18 - Prob. 32P
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- A piezoelectric force transducer has a charge sensitivity of 20 pC/N. It is connected to a charge amplifier and overall gain of transducer and amplifier is 50 mV/N. The gain of amplifier is O 2.5mV/pC O 1mV/pC O 1.5mV/pC O 4mV/pCarrow_forwardHow do you increase the voltage gain of an amplifier? A. Decrease the base circuit bias B. Decrease the input resistance C. Decrease the output resistancearrow_forward3.6 A difference amplifier is to have a voltage gain of 100. What will be the feedback resistance required if the input resistances are both 1 k2?arrow_forward
- What is the output peak voltage during the positive alternation of the input signal for the circuit shown below? •.. Vị 1+20V + Si vi 1.Ok Vo 5 V -20V A) 24.3 V B - 5 V - 24.3 V D) - 4.3 Varrow_forward1.31 Three identical amplifiers each having a voltage gain of 50 are cascaded. The open loop voltage gain of the combined amplifier is (a) 71 dB (c) 91 dB (b) 82 dB val (d) 102 dBarrow_forwardThe bias voltage is set to + 4.3 V. Where will the output of the predicted limiter shown be clipped? Please select one: a. Under + 3.6 V b. + 3.6 V above c. +Above 5.0 V d. +Below 5.0 Varrow_forward
- The gain of the instrumentation amplifier IA is 800. Determine the gain of the circuit V. / VIN? Select one: 30 k2 O a. 160.0 Ob. 0.0 E IA Oc. 0.2 Od. 800.0 20 k2 80 kL Oe.arrow_forwardVoltage when applied at 2 inputs of Op-amp to get 0 V of output is called_voltage. O a. Output offset O b. Input offset O. All of these O d. In-out offsetarrow_forwardAn opamp inverting amplifier has a gain of -1000 and the value of the input offset voltage is 1 mV. What will be the value of the output voltage when both the inputs are grounded?arrow_forward
- For the op-amp shown in the following figure, the midrange voltage gain is equal to- Vo 3 kn Select one: Oa-26.7 Ob-27.7 c. 27.7 d. 26.7 80 kf marrow_forwardQ 1. Determine the output voltage of the Digital-to-Analog Converter (DAC) in Figure 1(a) and plot it in Figure 1(c). The sequence of the four digit binary codes represented by the waveforms in Figure 1(b) are applied to the inputs. A high level is a binary 1and a low level is a binary 0. The least significant binary digit is Do. Do o D₁ 0- 200 ΚΩ www D₂ 0 100 ΚΩ www 50 ΚΩ www 25 ΚΩ D3 0 M 0 -0.25 -0.50 -0.75 -1.00 -1.25 -1.50 -1.75 -2.00 -2.25 -2.50 -2.75 -3.00 -3.25 -3.50 -3.75 (a) Vout (V) R₁ 10 ΚΩ o Vout +5 V Do 0 +5 V D₁ 0 +5 V 0 +5 V 0 D₂ D3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 non (c) Figure 1 I 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 ||||| (b) Binary inputarrow_forwardCompute for Zin and Zout. Voltage Gain and Current Gain.arrow_forward
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