Define slew rate.

1 Answer

Answer :

The slew rate is defined as the maximum rate of change of output Voltage caused by a step input voltage.An ideal slew rate is infinite which means that op-amp’s output voltage should change instantaneously in response to input step voltage.

Related questions

Description : Define slew rate?

Last Answer : Slew rate can be defined as the maximum rate of change of output voltage of op-amp with respect to time.

Description : What are the methods to improve slew rate?

Last Answer : a. The slew rate can be improved with higher closed-loop gain and dc supply voltage. But the slew rate also varies with temperature. i.e., slew rate decreases with increase in temperature. b. Another ... a higher slew rate, op-amp should have either a higher current or a small value of capacitor.

Description : How can the slew rate be made faster?

Last Answer : The slew rate can be made faster by having a high charging current or a small capacitance value.

Description : What causes slew rate?

Last Answer : There is a capacitor with-in or outside of an op-amp to prevent oscillation. The capacitor which prevents the output voltage from responding immediately to a fast changing input.

Description : Define : (i) CMMR ii) Slew rate

Last Answer : (i) CMRR:- The CMRR is defined as the ratio of the powers of the differential gain over the common-mode gain, measured in positive decibels (thus using the 20 log rule): As differential gain should ... respond to an abrupt change of input level It is measured as a voltage change in a given time.

Description : Define each of following terms of operational amplifiers i) Slew rate ii) Input offset voltage iii) Voltage gain iv) Input capacitance

Last Answer : i) Slew rate:- Maximum rate of change of o/p voltage per unit of time. It is express in volt/µsec.  ii) Input offset voltage:- The voltage that must be applied between two ... capacitance that can be measured at either be inverting or non-inverting terminal with other terminal connected to ground.

Description : What is Slew Rate ? What is the sleeve rate ?

Last Answer : : Sluw rate is how fast the output of an Op-amp can change.

Description : The purpose of a 'slew rate controller' in a circuit such as shown in the illustration is to ______________. EL-0096 A. limit the rate of change of a signal B. introduce a 'live zero' ... linear input into a non-linear output D. reduce air pressure to a value required by a combination circuit

Last Answer : Answer: A

Description : An infinite slew rate refers to A. no time delay B. small time delay C. large time delay D. variable time delay

Last Answer : no time delay

Description : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: (1) Has no offset (2) Approaches to triangular waveshape (3) Is pure sinusoidal (4) Is square wave 

Last Answer : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: Approaches to triangular waveshape

Description : Slew rate is defined by: (1) di/dt(max) (2) dv/dt(max) (3) di/dt(min) (4) dv/dt(min) 

Last Answer : Slew rate is defined by: dv/dt(max) 

Description : A 100 pF capacitor has a maximum charging current of 150 μA.What is the slew rate ? (A) 1.5 V/μs (B) 1.05 V/μs (C) 0.15mV/s (D) 10.5 mV/s

Last Answer : A 100 pF capacitor has a maximum charging current of 150 μA.What is the slew rate ? (A) 1.5 V/μs (B) 1.05 V/μs (C) 0.15mV/s (D) 10.5 mV/s

Description : An OP amp has a slew rate of 1V/µs. At a signal frequency of 0.1 MHz, the maximum undistorted sine wave amplitude is (a) 8V (b) 4.82 V (c) 2.02 V (d) 1.592 V

Last Answer : Slew rate = 2πfv where v is the amplitude V=(1/2π*0.1) = 1.592V

Description : Gorillagate: How many of you would have none of the slew of objections regarding the matter had it been your child?

Last Answer : I’d sue if the zoo wouldn’t let me in the cage so I could achieve closure by taking a memorial selfie of me holding my child while he gave the “sleeping” gorilla a “good night” hug.

Description : Should I wait for Verizon to release a slew of new phones in the next two months or give in and get the enV3 right now?

Last Answer : There’s always gonna be something better 2 months from now. The question is, does this phone do what you want it to at a price/terms you’re comfortable with. If so, then get it. And don’t look back.

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Description : Who slew the giant who had 6fingers on each hand and 6 toes on each foot?

Last Answer : Don't know

Description : As shown in the illustration, when the 'speed control' system is in 'SPLIT' _______________. EL-0096 A. Relays #1, #5 and #8 are not used B. the 'slew rated controller' is grounded through Relay ... E/P converters' are bypassed and air is fed directly to the governors via the 'load sharing valve'

Last Answer : Answer: C

Description : At locations where access to the new bridge construction is available by rail, the launching of girders upto 18.3 m which method is ideal. a) slew in slew out method b) gantry method c) Launching of girders with the help of a BFR*: d) Pantoon method

Last Answer : c) Launching of girders with the help of a

Description : Define Piezoelectric effect.

Last Answer : When applying mechanical energy to some type of crystals called piezoelectric crystals the mechanical energy is converted into electrical energy is called piezoelectric effect.

Description : Define non-inverting amplifier?

Last Answer : The input is applied to the non-inverting input terminal and the inverting terminal connected to the ground.

Description : Define input bias current?

Last Answer : It is defined as the average of the currents entering into the input terminals of an op-amp.

Description : Define input offset current?

Last Answer : It is defined as the algebraic difference between the current entering the inverting and non-inverting terminal of an op-amp.

Description : Define input offset voltage?

Last Answer : It is defined as the voltage that must be applied between the input terminals of an op-amp to nullify the output.

Description : Define loading?

Last Answer : A large value of Rc cannot be used in a circuit since,a large value of resistance requires a large chip area.For large Rc, quiescent drop across it increases and hence a large power supply is required ... source can also be used as an active load for an amplifier to obtain a very large voltage gain.

Description : Define current amplification factor?

Last Answer : It is defined as the ratio of change in output current to the change in input current at constant other side voltage.

Description : Define PIV .

Last Answer : Peak inverse voltage is the maximum reverse voltage that can be applied to the PN junction without damage to the junction.

Description : Define the term diffusion current?

Last Answer : A concentration gradient exists, if the number of either electrons or holes is greater in one region of a semiconductor as compared to the rest of the region. The holes and electron ... concentration. This process in called diffusion and the current produced due this movement is diffusion current.

Description : Define drift current?

Last Answer : When an electric field is applied across the semiconductor, the holes move towards the negative terminal of the battery and electron move towards the positive terminal of the battery. This drift movement of charge carriers will result in a current termed as drift current.

Description : Define Monostable Multivibrators

Last Answer : The monostable multivibrator or one –shot requires an external signal called a trigger to force the circuitinto a quasi stable state for a particular time or delay.

Description : Define Astable Multivibrators.

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Description : Define Multivibrators. Mention its types.

Last Answer : Multivibrators are regenerative circuits, Which are mainly used in timing applications. Based on their operational characteristics they can be classified into • Astable Multivibrators • Monostable Multivibrators • Bistable Multivibrators

Description : Define load regulation.

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Description : Define line regulation.

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Description : Define slope overload noise and granular noise.

Last Answer : Slope overload noise is introduced due to the use of a step size delta is too small To follow some portions of the waveform with a step size.   Granular noise results from using a step size that is too large in parts of the waveform having a small slope. 

Description : Define Delta modulation. 

Last Answer : Delta modulation is a technique in which derivative of the signal is quantized. The delta modulation shows slope overload for fast input signals and their performance is dependent on input signal frequency.

Description : Define Dither.

Last Answer : It is a very small amount of random noise(white noise) which is added to the input before A/D conversion to improve the performance of A/D converter.

Description : Define quantization error.

Last Answer : In A/D converter the smallest digital step is due to the LSB and it can be made smaller only by increasing the number of bits in the digital representation. This error is called quantization error.

Description : Define sample period and hold period.

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Description : Define accuracy of converter.

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Description : Define resolution of a data converter.

Last Answer : The resolution of a converter is the smallest change in voltage which may be produced at the output or input of the converter. Resolution (in volts)= VFS/2n-1=1 LSB increment. The resolution of an ADC is defined as the smallest change in analog input for a one bit change at the output.

Description : Define conversion time.

Last Answer : conversion time of a successive approximation type ADC is given by  T(n+1)  where T---clock period  Tc---conversion time  n----no. of bits

Description : Define Voltage to Frequency conversion factor. 

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Description : Define free running mode .

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Description : Define Pull-in time.

Last Answer : The total time taken by the PLL to establish lok is called pull-in time.It depends on the initial phase and frequency difference between the two signals as well as on the overall loop gain and loop filter characteristics

Description : Define capture range of PLL.

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Description : Define lock-in range of a PLL.

Last Answer : The range of frequencies over which the PLL can maintain lock with the incoming signal is called the lock-in range or tracking range. It is expressed as a percentage of theVCO free running frequency.

Description : Define FSK modulation.

Last Answer : FSK is a type of frequency modulation ,in which the binary data or code is transmitted by means of a carrier frequency that is shifted between two fixed frequency namely mark(logic1) and space frequency(logic 0).

Description : Define High pass filter.

Last Answer : A low pass filter allows only high frequency signals upto a certain break point fH to pass through

Description : Define low pass filter.

Last Answer : A low pass filter allows only low frequency signals upto a certain break point fH to pass through.