(c) (d) Figure Figure Q1b shows an Op-amp with a bias current compensating resistor (Rp). R₁ V₂. Vp IB. R₂ W A • V₂ Figure Olb (i) Derive an expression for V. to quantify the effect of bias currents IB+ and IB-. [3] (ii) Explain how you would choose a value for Rp to reduce the output error due to the bias currents, IB+ and IB.. [3] Referring to an op-amp define what is meant by common-mode rejection ratio (CMRR) and explain the effect a finite CMRR would have on high-precision applications. [4] Page 2 of 7 Continued overleaf

(c) (d) Figure Figure Q1b shows an Op-amp with a bias current compensating resistor (Rp). R₁ V₂. Vp IB. R₂ W A • V₂ Figure Olb (i) Derive an expression for V. to quantify the effect of bias currents IB+ and IB-. [3] (ii) Explain how you would choose a value for Rp to reduce the output error due to the bias currents, IB+ and IB.. [3] Referring to an op-amp define what is meant by common-mode rejection ratio (CMRR) and explain the effect a finite CMRR would have on high-precision applications. [4] Page 2 of 7 Continued overleaf

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...

See similar textbooks

Similar questions

Q2 A differential input (subtracting) amplifier is shown in Figure Q2. (a) (b) (d) R₁ W R3 R₂ Figure Q2 A If all the resistors are equal state the voltage gain and give an expression for Vout, neglecting any sources of error. [2] Redraw Figure Q2 showing of all the sources of DC error. [2] Derive an expression for the total DC error as a voltage referred to the output (RTO). You can assume that impedances are matched and that all the resistors are the same and equal 10k2. [8] Describe what is meant by Figure of Merit (FoM) and write an expression for it using your solution to Part (c). [3]
Q1. A series Op-Amp voltage regulator which its input voltage is 15V and to regulate output voltage of 8V Draw the circuit diagram for the series regulator Analyse the circuit to choose the proper used components Calculate the line regulation in both % and in %/V for the circuit if the input voltage changes by an amount of 3V which leads to a change in output voltage of 50mV
Assume that the R2/R1 ratio of a feedback amplifier with voltage supply of +/- 10 V is 3.4 and that a value of 8.5 V is applied to the inverting input of the op-amp. What is the output voltage value?
3A Problem 1. (P1) Three op-amps are connected in cascade configuration. An 80 microVolts signal is connected to the non-inverting input of the first op-amp. Both the 2nd and 3rd op-amps operates as inverting amplifiers. All feedback resistors are 420 KOhms while the input resistances are 71.4kOhms, 19.1kOhms, and 14KOhms respectively. Determine the gain of the first stage. a.-15 b.16 c.15 d.-16
(b) Draw the diagram of a traditional three-opamp instrumentation amplifier. Write down expressions for the differential and common-mode gains of the complete circuit, including the circuit fragment shown in Figure Q2a.
Suppose that we want to design an amplifier that can produce a 100-kHz sine-wave output having a peak amplitude of 5 V. What is the minimum slew-rate specification allowed for the op amp?
When 100 V and 20 V are applied to the non inverting and the inverting terminal of open loop an opamp, the output obtained is 80600 V. If the voltage at the inverting terminal is changed to 40 V, then the output voltage is 60700 V. What will be the differential gain and common mode gain of the opamp?
Define operational amplifiers (op - amps) and discuss their characteristics, such as high gain, input impedance, and output impedance. Explain common op-amp configurations and their applications in signal processing and control systems.
B. Design an averaging amplifier based Op-Amp with eight input? and find the output voltage if the input signals are equal with value of 7 Volts?
A noninverting ampliﬁer is being designed to have a closed-loop gain of 36 dB. What op-amp gain is required to have the gain error less than 0.15 percent?
Discuss what a difference amp is, give equations and details, what is a single-ended and differential signal, what is a 4-20 mA signal, what is common-mode noise and why is a difference amp used?
6. For common-source small-signal FETS, the output voltage is 180° phase shifted with respect to the Q 7. The operating cycle of a Class A amplifier is Q 8. The maximum efficiency of a Class B amplifier is Q 9. In analyzing op-amps, when the non-inverting input pin is at ground and the inverting input pin is also at 0 V for an AC signal, the technique is called as Q 10. is an op-amp application circuit which is useful in low pass filter circuits.