When an instrumentation amplifier uses guarding, the shield is driven by a
a.
low-impedance differential source
b.
low-impedance common-mode source
c.
high-impedance common differential source
d.
high-impedance common-mode source
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When an instrumentation amplifier uses guarding, the shield is driven by a a. low-impedance differential source...
A differential amplifier with a constant current source is shown. The circuit parameters are: Vec = Vee = 5 V, R. = 1 ks, R1 = 9.3 K9, Rc = 5 k-2, VBE = 0.65 V, and B = 100. Voc Find: a) b) c) d) Ici and le Vcel and Vce. The differential-mode and common-mode gains. The common-mode -rejection-ratio in decibels. RC 2858 RC Vot Va . RS R Q1 Q2 Vs Vs R Ica . La VIE
The instrumentation amplifier shown below and has R = 1ks. R = 3 kg, and R = 10 k2. The input sign paner shown below uses ideal operational amplifiers 10 kN. The input signals in volts are vi(t) = 0.3 cos(2000) + cos(120 and ) 02(t) = -0.3 cos(2000xt) + cos(120 ) a. (5 pts) Find the differential and common mode inputs to the an b. (10 pts) Find expressions for the outputs of amplifiers X1 and c. (5 pts)...
For the differential amplifier shown in Figure (2),assume \(\mathrm{VCC}=12 \mathrm{~V}, \mathrm{VEE}=-12 \mathrm{~V}, \mathrm{Rc}=2 \mathrm{k} \Omega\), and \(\beta=100\) for all transistors.For the current source circuit (Transistor \(\left.Q_{3}\right): R_{1}=4 k \Omega, R_{2}=4 k \Omega, R_{3}=3 \mathrm{k} \Omega\), and \(r_{0}=100 \mathrm{k} \Omega\).a) In differential amplifier circuits, what do "well-matched transistors" mean?b) Why it is important to use well-matched transistors in differential amplifier circuits?c) What are the operating \(Q\) point values \(\left(I_{c Q}\right.\) and \(\left.V_{C Q}\right)\) for the transistors \(Q_{1}\) and \(Q_{2}\) ?d) Draw...
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Evaluate the differential input resistance (in kOhms) for a BJT differential amplifier with emitter degeneration resistors of 328.70hms, Beta of 31.63, common DC current source of 1.75mA with output resistance of 475kOhms. C2 C1 le Ro Find the common mode rejection ratio for a MOSFET differential pair with randomly selected 4kOhm E12 resistors as the drain load biased by a current source of 5mA with output impedance of 44kOhm. W/L= 8 and μ.cox-4mA/V...
For the simple differential amplifier shown below,
a) Calculate the differential gain, Av , of the circuit
b) Calculate the common-mode gain, ACM, of the
circuit and compute CMRR
c) The common-mode gain can be reduced by replacing the resistor
RE, with a constant current source. Design a current
source that is not dependent on Beta linearly to
replace RE, transistors of the same characteristics as
Q1 and Q2, and resistors of your choice
*(Q1, Q2 = 120; ro =...
For the differential amplifier shown in Figure 6: Assume
well-matched transistors and = 100 for all transistors:
a) Why it is important to use well-matched transistors in
differential amplifier circuits? What is the potential influence of
mismatched transistors on the performance of the differential
amplifier?
b) Determine the resistor values (R1, R2 and R3) such that the
emitter coupled current IE = 0.5 mA and VC1 = 3 V.
c) Draw the ac equivalent circuit for the single ended...
f) Figure Qlf) shows the ac equivalent circuit of a common-source amplifier where have a low-frequeney rol-off C assume that Rs is much greater than the impedance of Cs at the frequency of 100 Re is the ac load. The low-frequency roll-off is to be set by the capacitor Cs. Design the amplifier to have a low-frequency roll-off, 100 Hz. You may Rt gs gm Vgs V. Rs Cs Figure QiD
f) Figure Qlf) shows the ac equivalent circuit of...
please make sure you are correct
1. Select configuration for a single-transistor amplifier with a gain of 30 dB and input resistance of 5 Mohm. A) common-emitter; b) common-gate; c) common-source; d)common-collector; e) cannot be implemented by single stage amplifier. 2. Select configuration for a single-transistor amplifier with a gain close to 0 dB and input resistance of 5 Mohm and load resistor of 50 ohm. a) common-emitter; b) common-gate; c) common-source; d)common-collector; e) cannot be implemented by single stage...
The gain of the non-inverting amplifier is set by the values of the resistors connected to the op- .amp can never be less than 1, even when RB is very high and RT equals 0 A voltage divider is a circuit involving two resistors in series All above is .1 correct Which statement not correct for Ideal operational amplifier Infinite open loop gain AOL for differential .1 .signa Zero gain for the common mode signal .Zero output impedance .noninfinite bandwidth...
1. (a) Express the differential gain (double side) of the amplifier using TR parameters and Rc. (3pts) (b) Express the differential gain for a single side output. (2pts) (e) Design the Re such that o velve IV when vi5mV and v2+5mV (3pts) (d) Determine the maximum common-mode input voltage (5pts) (e) Determine the differential mode input resistance of the amplifier Beta is 100.(3pts) V+ = 10V R. ci C2 ei 02 2 t )10 = 2 mA V-=-10V
1. (a)...