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Enter the Input Voltage,Vin: Volts Enter the Frequency, f: Hertz Enter the Input Resistance, Rin: Ohms Enter the Value of Capacitor, C: Farads Output Voltage, Vout: Volts OP AMP based Integrator Tutorial and Design

Here is an Operational amplifier based sine wave generator circuit , it is basically a wein bridge oscillator . Because of its simplicity and stability, one of the most commonly used audio frequency oscillator is wein-bridge. The wein bridge oscillator in which the weinbridge circuit is connected between the amplifier input and output terminals. The bridge has a series RC network in one arm and a parallel RC network in the adjoining arm. in the remaining arms of bridge, input resistor R1 and Feedback Resistor Rf is connected. Read More.....

OPERATIONAL AMPLIFIER OP-AMP OSCILLATOR ELECTRONIC CIRCUIT Timing capacitor (C1) produces several times constants which is used to allow large voltage swings on the input due to the LM101's large input voltage range. The R2 should be reduced and the C1 should be increased to keep from exceeding these ratings. The smaller polarized capacitors is still used by returning them to positive supply voltage instead of ground, even though C1 requires the large values.

→ OPEN LOOP GAIN It is the voltage gain of an OP AMP when NO Feedback is applied. → INPUT OFFSET VOLTAGE It is the Voltage that must be applied between the input terminals of an OP AMP to make the output zero. → INPUT OFFSET CURRENT It is the algebraic difference between the Current through Inverting and Non-Inverting input terminals. → INPUT BIAS CURRENT Average of the currents that flow into the Inverting and Non-Inverting input terminals of the OP AMP. → INPUT CAPACITANCE Capacitance that can be measured at either the Inverting or Non-Inverting terminal with the other terminal grounded. → OUTPUT OFFSET VOLTAGE It is the DC Voltage present at the output terminals when both the input terminals are grounded. → SLEW RATE It is the Maximum rate of change of output voltage with respect to time. → POWER SUPPLY REJECTION RATIO Ratio of the change in input offset voltage due to the change in supply voltage producing it, keeping the other supply voltage constant. It is also called as Power s...

Square, triangular, sawtooth, and pulse waves are typical examples of nonsinusoidal waveforms. A conventional ac voltmeter cannot be used to measure these nonsinusoidal waveforms because it is designed to measure the RMS value of the pure sine wave. One possible solution to this problem is to measure the peak values of the nonsinusoidal waveforms. Read More.....

As the name indicates , a sample and hold circuit is a circuit which samples an input signal and holds onto its last sampled value until the input is sampled again. Sample and hold circuits are commonly used in analogue to digital converts, communication circuits, PWM circuits etc. The circuit shown below is of a sample and hold circuit based on uA 741 opamp , n-channel E MOSFET BS170 and few passive components. Description As the name indicates , a sample and hold circuit is a circuit which samples an input signal and holds onto its last sampled value until the input is sampled again. Sample and hold circuits are commonly used in analogue to digital converts, communication circuits, PWM circuits etc. The circuit shown below is of a sample and hold circuit based on uA 741 opamp , n-channel E MOSFET BS170 and few passive components. In the circuit MOSFET BS170 (Q1) works as a switch while opamp uA741 is wired as a voltage follower. The signal to be sampled (Vin) is applied to the drai...

CHARACTERISTICS OF IDEAL OP AMP Here we are going discuss about the Ideal OP-AMP characteristics or assumptions. An operational amplifier is said to be IDEAL if it has the Following CHARACTERISTICS :- 1. Its open loop gain A is infinite. When an operational amplifier (OP-AMP) is operated without any connection between the output and any of the inputs (without feedback), it is said to be in OPEN LOOP condition. Infinite voltage gain means the voltage difference required between the two inputs to produce any output voltage is zero. 2. The Input Resistance should be Infinite. The Input current is zero and so it doesnot load the source. It is also means the ideal OP AMP is a voltage controlled device. 3. The output Impedence should be Zero. The output voltage Vout doesnot depend on the Load Resistance connected between the output terminals. So the output voltage is independent of current drawn by the Load. Thus the device can drive Infinite number other devices. 4. Perfect Balance Because...