Differential Amplifiers

A differential amplifier is a type of electronic amplifier that increases the difference between 2 input voltages. Differential amplifiers also suppress and voltage common to the two inputs. A digital amplifier is one of the most used and important components within integrated circuits.

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 with 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, 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 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 is CMRR and PSRR?

CMRR – Common mode rejection ratio
PSSR – Power supply rejection ratio


...
Lees meer Lees minder

Filters

1 - 20 van 168 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Maximum Input Offset Voltage Maximum Input Resistance Maximum Voltage Gain Typical Gain Bandwidth Product Minimum CMRR Output Configuration Number of Channels per Chip Mounting Type Package Type Pin Count Rail to Rail
RS-stocknr. 121-8455
FabrikantnummerINA106KP
8,815 €
Each (In a Tube of 50)
Aantal stuks
Dual - ±15V 0.5mV 0.11MΩ 20dB - 86dB - 1 Through Hole PDIP 8 -
RS-stocknr. 647-665
FabrikantnummerINA106KP
10,01 €
Each
Aantal stuks
Dual - ±15V 0.5mV 0.11MΩ 20dB - 86dB - 1 Through Hole PDIP 8 -
RS-stocknr. 522-8685
FabrikantnummerAD626ANZ
FabrikantAnalog Devices
10,56 €
Each
Aantal stuks
Dual, Single 5 V ±5V 2.5mV 0.02MΩ - - 55dB - 1 Through Hole PDIP 8 -
RS-stocknr. 697-6988
FabrikantnummerAD698APZ
FabrikantAnalog Devices
33,11 €
Each
Aantal stuks
- 17.5 V 13V - - - - - - - Surface Mount PLCC 28 -
RS-stocknr. 779-9561
FabrikantnummerLT1990CS8#PBF
FabrikantAnalog Devices
2,81 €
Each (In a Pack of 2)
Aantal stuks
Dual, Single 2.7 → 36 V ±250V 4.5mV 2MΩ - 105kHz 58dB - 2 Surface Mount SOIC 8 Rail to Rail Output
RS-stocknr. 647-659
FabrikantnummerINA105KP
8,10 €
Each
Aantal stuks
Dual - ±15V 0.5mV 0.05MΩ 0dB - 72dB - 1 Through Hole PDIP 8 -
RS-stocknr. 100-0744
FabrikantnummerINA105KP
6,986 €
Each (In a Tube of 50)
Aantal stuks
Dual - ±15V 0.5mV 0.05MΩ 0dB - 72dB - 1 Through Hole PDIP 8 -
RS-stocknr. 786-9720
FabrikantnummerLT6552IS8#PBF
FabrikantAnalog Devices
2,67 €
Each (In a Pack of 2)
Aantal stuks
Single 3.3 V - 25mV 300kΩ - 55MHz 58dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS-stocknr. 709-5077
FabrikantnummerAD8206YRZ
FabrikantAnalog Devices
2,74 €
Each
Aantal stuks
Single 5 V - 2mV 0.4MΩ 26.02dB 100kHz 76dB - 1 Surface Mount SOIC 8 -
RS-stocknr. 774-1408
FabrikantnummerTHS4531ID
2,56 €
Each
Aantal stuks
Single 2.5 → 5.5 V - ±2000µV 200kΩ 114dB 27MHz 90dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS-stocknr. 538-6595
FabrikantnummerAD628ARMZ
FabrikantAnalog Devices
4,80 €
Each
Aantal stuks
Dual, Single 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 3mV 0.22MΩ 40dB - 75dB - 2 Surface Mount MSOP 8 -
RS-stocknr. 778-5118
FabrikantnummerAD8476BRMZ
FabrikantAnalog Devices
5,65 €
Each
Aantal stuks
Dual 3 to 18 V ±1.5 to ±9V - 500kΩ 1V/V 6MHz 90dB - 1 Surface Mount MSOP 8 Rail to Rail Output
RS-stocknr. 764-8794
FabrikantnummerADA4932-2YCPZ-R7
FabrikantAnalog Devices
9,59 €
Each
Aantal stuks
Dual, Single 3 → 11 V ±5V 2.2mV 11MΩ 66dB 1GHz -100dB - 2 Surface Mount LFCSP VQ 24 -
RS-stocknr. 159-9267
FabrikantnummerADA4932-2YCPZ-R7
FabrikantAnalog Devices
6,728 €
Each (On a Reel of 1500)
Aantal stuks
Dual, Single 3 → 11 V ±5V 2.2mV 11MΩ 66dB 1GHz -100dB - 2 Surface Mount LFCSP VQ 24 -
RS-stocknr. 162-6741
FabrikantnummerTHS4531ID
2,174 €
Each (In a Tube of 75)
Aantal stuks
Single 2.5 → 5.5 V - ±2000µV 200kΩ 114dB 27MHz 90dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS-stocknr. 709-6061
FabrikantnummerAD629ANZ
FabrikantAnalog Devices
8,10 €
Each
Aantal stuks
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Through Hole PDIP 8 -
RS-stocknr. 851-6859
FabrikantnummerLTC6362IMS8#PBF
FabrikantAnalog Devices
3,518 €
Each (In a Pack of 5)
Aantal stuks
Single 2.8 → 5.25 V - ±30mV 230kΩ 95dB 180MHz 75dB - 1 Surface Mount MSOP 8 Rail to Rail Input/Output
RS-stocknr. 527-580
FabrikantnummerTHS4131CD
7,00 €
Each
Aantal stuks
Dual, Single 5 V ±15V 2mV 34MΩ 78dB 225MHz 80dB - 1 Surface Mount SOIC 8 -
RS-stocknr. 517-0356
FabrikantnummerTHS4509RGTT
6,99 €
Each
Aantal stuks
Dual, Single 5 V ±2.5V 4mV 0.05MΩ 68dB 3GHz - - 1 Surface Mount QFN 16 -
RS-stocknr. 145-6906
FabrikantnummerTHS4509RGTT
5,418 €
Each (On a Reel of 250)
Aantal stuks
Dual, Single 5 V ±2.5V 4mV 0.05MΩ 68dB 3GHz - - 1 Surface Mount QFN 16 -
Related Products
Differential Amplifiers by Analog Devices are integrated and ...
Description:
Differential Amplifiers by Analog Devices are integrated and optimised for differential signalling applications. These speciality amplifiers have inherent common mode rejection properties that provide a low harmonic distortion with an output gain and phase matching. Applications include driving or receiving ...
The MCP6D11 is a low-noise, low-distortion differential amplifier, ...
Description:
The MCP6D11 is a low-noise, low-distortion differential amplifier, optimized for driving high-performance, high-speed ADCs such as the MCP331x1D series. In addition to the low-noise and low-distortion, the MCP6D11 consumes only 3.5 mW of quiescent power on a 2.5V supply. For ...
Differential Amplifiers by Analog Devices are integrated and ...
Description:
Differential Amplifiers by Analog Devices are integrated and optimised for differential signalling applications. These speciality amplifiers have inherent common mode rejection properties that provide a low harmonic distortion with an output gain and phase matching. Applications include driving or receiving ...
Differential Amplifiers by Analog Devices are integrated and ...
Description:
Differential Amplifiers by Analog Devices are integrated and optimised for differential signalling applications. These speciality amplifiers have inherent common mode rejection properties that provide a low harmonic distortion with an output gain and phase matching. Applications include driving or receiving ...