What are the applications of log and antilog amplifier?

One possible application is in true RMS detection circuits. Other applications for log/anti-log amplifiers include signal compression and process control. Signals are often compressed in order to decrease their dynamic range (i.e., the difference between the highest and lowest level signals).

What are the applications of log amplifier?

Logarithmic amplifier applications Logarithmic amplifiers are used in many ways, such as: To perform mathematical operations like multiplication, division and exponentiation. Multiplication is also sometimes called mixing.

What is antilog amplifier?

An anti-logarithmic amplifier, or an anti-log amplifier, is an electronic circuit that produces an output that is proportional to the anti-logarithm of the applied input.

Which function does the antilog computation to perform continuously with log amps?

Which of the following functions does the antilog computation required to perform continuously with log-amps? Explanation: Log-amp can easily perform function such as In(x), Log(x), Sinh(x) to have direct dB display on digital voltmeter and spectrum analyser.

What is the disadvantage of log antilog amplifier?

What is the disadvantage of log-antilog multiplier? Explanation: Log amplifier requires the input and reference voltage to be of the same polarity. This restricts log-antilog multiplier to one quadrant operation.

How does a Logarithmic amplifier work?

Log amplifier is a linear circuit in which the output voltage will be a constant times the natural logarithm of the input. The basic output equation of a log amplifier is v Vout = K ln (Vin/Vref); where Vref is the constant of normalisation, and K is the scale factor.

What are the drawbacks of log amplifier?

This type of log amp has three disadvantages: (1) both the slope and intercept are temperature dependent; (2) it will only handle unipolar signals; and (3) its bandwidth is both limited and dependent on signal amplitude.

What are the applications of non-inverting amplifier?

The applications of non-inverting op-amp include the following.

  • The non-inverting op-amp circuits are used where high input impedance is necessary.
  • These circuits are used as a voltage follower by giving the output to the inverting input as an inverter.
  • These are used to isolate the particular cascaded circuits.

What is the application of inverting amplifier?

An inverting amplifier can be used as a trans resistance amplifier which is also called a trans-impedance amplifier. This amplifier works as a current to voltage converter, used in less power-based applications. Inverting amplifier is used at the output stage when any system is designed with different types of sensors.

What is AntiLog amplifier?

Why is diode used in log amplifier?

The simple logarithmic amplifier uses a junction diode as a nonlinear element. In a forward-biased diode, the voltage drop across the diode varies proportionally to the log of the current through it.