## Opamp as Differentiator (active differentiator)

A differentiator opamp is an opamp configuration that produces a differentiated version of the signal applied to its input terminal. This process is exactly the opposite of integration. by interchanging the positions of components in an integrator circuit we can get a differentiator circuit. Here we’re going to discuss two types of differentiator circuit: Ideal differentiator Practical differentiator Ideal opamp as differentiator circuit: Circuit for ideal differentiator is as shown in the figure:   this circuit can perform the mathematical operation of differentiation on the input signal. The output is…

## OP AMP integrator

The circuit in which output voltage waveform is an integration of the input signal is called as an integrator or op-amp integrator or integrating amplifier. The output voltage is proportional to the amplitude and duration of the input signal. Ideal op amp Integrator Circuit:     The above circuit is obtained by replacing the feedback resistor RF in the inverting amplifier configuration by a capacitor Cf. We assume that opamp used here is an ideal one. V2 is at virtual ground potential. R1 is the input resistance and RL is…

## Voltage Follower OPAMP or buffer Amplifier

OPAMP buffer or voltage follower is an opamp configuration whose gain is equal unity. Voltage follower is also known as unity gain amplifier, voltage buffer, opamp buffer, or an isolation amplifier. It is used to separate two circuits having the same voltage level but different impedance. In a voltage follower circuit output voltage and input voltage, both are equal. Due to this, the gain of the opamp is one (unity), and the amplifier does not amplify the input signal. This voltage follower circuit does not require any external components. What…

## Non Inverting Amplifier(OPAMPs)

A non-inverting amplifier is an OPAMP circuit configuration whose output is in phase with the input signal at the non-inverting input. The input signal is applied at the non-inverting input of the opamp. A non-inverting amplifier also acts as a voltage follower circuit. The non-inverting amplifiers also have negative feedback which is used to control the gain of the amplifier. Feedback contains a voltage divider circuit that provides a part of the output to the input terminal. This OPAMP has a high input impedance and a low output impedance. This…

## Inverting amplifier (OPAMPs)

The inverting amplifier is one of the types of closed-loop opamp configuration. In this configuration, the non-inverting (+ve) terminal of the opamp is connected to the ground, while the inverting terminal acts as input terminal. Negative feedback is present between the output terminal and  (-ve) inverting terminal of OPAMP. Importance of negative feedback in Inverting amplifier: The open-loop gain of an operational amplifier is very high up to 120 dB. Practically this gain is unstable and difficult to control. Get SEO Backlinks If we use the OPAMP in open loop…

## 741 Op Amp, First Operational Amplifier IC

741 op amp(operational amplifier) IC is one of the most oldest and popular IC with high performance. It is used in various analog applications such as integrator and differentiator summing amplifier differentiator etc. Operational amplifier: An operational amplifier is a DC-coupled high-gain electronic voltage amplifier amplifier that has high gain, differential input, high input resistance, and low output resistance. Special features of IC 741: Frequency compensation is not required. Short circuit protection has been provided. It has offset voltage null capability. Large differential voltage gain. There is no latching. Pin…

## Digital Dice Roller using 555 timer & IC 4022

This low cost and non-partial Digital dice roller ensure a fair play and equal chance to all participants. Small enough to be carried around in a pocket, it would prove to be an ideal companion in indoor and outdoor games like ludo, Snake&Ladder, etc. Since times immemorial the six-faced cube, ever since the man invented it, has always been of immense importance in all kinds of games. Here is an electronic version of the dice which is just the very thing to accompany the modern electronic games. This digital dice…

## Simple Door Phone Circuit

A Door phone circuit provides a two-way conversation and allows you to identify a caller before opening a door. It is a requirement of modern homes to ensure safety and security. This door phone circuit allows the house owner to converse and acquire the required information ( e.g, who he is and what is the purpose of his visit etc. )before opening the door to a visitor. The phone incorporates an in-built musical doorbell. It allows a two-way conversation and can operate on mains or a 9volt battery. The complete…

## 12V to 230V Inverter Circuit Diagram using 555 timer IC

The circuit in this article shows you a simple way to build a 12v to 230v inverter circuit diagram of 100watt power using 555 IC. 555 is a timer ic which is used to generate time delay. On these properties, it can be used to make a power inverter. CD4047 Inverter circuit This Inverter does not meet a standard sinusoidal inverter. It is a square wave inverter it can deliver 50W to 100W power depending on the battery. It may have noise due to the absence of a feedback circuit.…

## What is operational amplifier? basics concepts

An operational amplifier is a DC-coupled high-gain electronic voltage amplifier amplifier that has high gain, differential input, high input resistance, and low output resistance.