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A differential amplifier is a type of electronic amplifier that increases the difference between two input voltages. Differential amplifiers also suppress voltage to be common to the two inputs. A digital amplifier is one of the most used and important components within integrated circuits (ICs).

### Differential Amplifier inputs
- One inverting
- One non-inverting

### Why use a Differential Amplifier?

Differential amplifiers are used to amplify balanced differential signals which are used to communicate small signals in electrically noisy environments. The signal wires should be close or wired together and most of the induced noise will be "common mode", affecting both wires in the same way.

### Differential Amplifier Applications

The main application of a differential amplifier is to get rid of any noise and voltages that are present in both of the voltage inputs. This noise is present in common mode fluctuating voltage. Differential amplifiers are used in circuits that utilise negative feedback, such as controlling motors and signal amplification.

### Various electronic devices use differential amplifiers
- FM/Am Radio signal recovery
- Audio pre-amplifiers
- Microphone pre-amplifiers
- TV Signal recovery
- Digital to analogue converters

A Differential amplifier can also be configured to operate as a single-ended amplifier by grounding one of the inputs.

Modern differential amplifiers normally sit on a single microchip. Inside the microchip, positive and negative signals are added and become a single output.

### What do CMRR and PSRR stand for?
- **CMRR** is the abbreviated version of Common Mode Rejection Ratio and refers to the power ratio of differential gains between the common-mode gain. This unit is measured in positive decibels.
- **PSRR** is the abbreviated version of Power Supply Rejection Ratio and refers to an amplifiers ability to consistently maintain output voltage white the DC voltage supplied is varied.


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Differential Amplifiers | Analog Devices | RS

Differential Amplifiers

AD8202YRZ Analog Devices, Differential Amplifier 8-Pin SOIC

AD8350ARMZ20 Analog Devices, Differential Amplifier 8-Pin MSOP

AD8207WBRZ Analog Devices, Differential Amplifier 150kHz No 8-Pin SOIC

AD8137YRZ Analog Devices, Differential Amplifier Rail to Rail...

AD8139ARDZ Analog Devices, Differential Amplifier Rail to Rail...

AD628ARZ Analog Devices, 2-Channel Differential Amplifier 8-Pin SOIC

AD628ARMZ Analog Devices, 2-Channel Differential Amplifier 8-Pin MSOP

Buy from our selection of differential amplifiers from Devices. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Devices Differential Amplifiers | RS Components

Buy from our selection of differential amplifiers from Instruments. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Devices Differential Amplifiers

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