Differential Amplifiers

What is a Differential Amplifier?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 on the most used and important components within integrated circuits.Differential Amplifier 2 inputs One inverting One non-invertingWhy 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 convertersA Differential amplifier can be configured to operate as 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 ratioPSSR – Power supply rejection ratio

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Description Price 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 Stock No. 160-1734
Mfr. Part No.AD8278ARMZ
MYR9.81
Each (In a Tube of 50)
units
Dual, Single 2 → 36 V ±2 → ±18V 500µV 120 (Differential) kΩ, 30 (Common Mode) kΩ - 1MHz 74dB - 1 Surface Mount MSOP 8 -
RS Stock No. 823-0041
Mfr. Part No.LTC6409CUDB#TRMPBF
MYR46.88
Each
units
Single 2.7 → 5.25 V - ±1400µV 165 (Common Mode) kΩ, 860 (Differential Mode) Ω 65dB 10GHz - - 1 Surface Mount QFN 10 -
RS Stock No. 160-1735
Mfr. Part No.AD8278ARZ
MYR9.591
Each (In a Tube of 98)
units
Dual, Single 2 → 36 V ±2 → ±18V - - - - 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 814-4004
Mfr. Part No.THS4524IDBT
MYR33.91
Each
units
Dual, Single 2.5 → 5.5 V ±1.25 → ±2.75V ±2mV 110kΩ 116dB 93MHz 80dB - 1 Surface Mount TSSOP 38 Rail to Rail Output
RS Stock No. 100-0768
Mfr. Part No.INA117KU
MYR28.67
Each (In a Tube of 75)
units
Dual - ±15V 2mV 0.8MΩ 0dB - 66dB - 1 Surface Mount SOIC 8 -
RS Stock No. 822-5783
Mfr. Part No.LTC6406IUD#PBF
MYR37.99
Each
units
Single 2.7 → 3.5 V - ±5mV 130 (Common Mode) kΩ, 3 (Differential Mode) kΩ 90dB 3GHz - - 1 Surface Mount QFN 16 Rail to Rail Input
RS Stock No. 178-8879
Mfr. Part No.LME49724MR/NOPB
MYR24.081
Each (In a Tube of 95)
units
- - - - - - - - - - - - - -
RS Stock No. 779-9561
Mfr. Part No.LT1990CS8#PBF
MYR13.495
Each (In a Pack of 2)
units
Dual, Single 2.7 → 36 V ±250V 4.5mV 2MΩ - 105kHz 58dB - 2 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 162-5023
Mfr. Part No.INA154UA
MYR9.45
Each (In a Tube of 75)
units
Dual - ±15V 1.5mV 0.05MΩ 0dB - 74dB - 1 Surface Mount SOIC 8 -
RS Stock No. 121-6906
Mfr. Part No.AD8479ARZ
MYR23.745
Each (In a Tube of 98)
units
Dual - ±2.5 → ±18V 3mV - - 130MHz 80dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 912-6312
Mfr. Part No.ADA4932-1YCPZ-R2
MYR27.422
Each (On a Reel of 250)
units
Dual, Single 5 V, 9 V ±3 V, ±5 V 2.2mV 16MΩ 66dB - 87dB - 1 Surface Mount LFCSP 16 -
RS Stock No. 197-7141
Mfr. Part No.INA117KU
MYR43.27
Each
units
Dual 12 V ±15V 1000µV - - 200kHz - - 1 - SOIC 8 -
RS Stock No. 921-2924
Mfr. Part No.THS4524IDBT
MYR28.38
Each (In a Tube of 50)
units
Dual, Single 2.5 → 5.5 V ±1.25 → ±2.75V ±2mV 110kΩ 116dB 93MHz 80dB - 1 Surface Mount TSSOP 38 Rail to Rail Output
RS Stock No. 912-7763
Mfr. Part No.AD629ANZ
MYR34.84
Each (In a Tube of 50)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Through Hole PDIP 8 -
RS Stock No. 806-7935
Mfr. Part No.AD8274ARZ
MYR11.81
Each (In a Pack of 2)
units
Dual - ±2.5 → ±18V 1100µV - - 20MHz 83dB - 1 Surface Mount SOIC 8 -
RS Stock No. 912-8970
Mfr. Part No.AD8132ARZ
MYR15.69
Each (In a Tube of 98)
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 3.5mV 3MΩ 0.129dB - - - 1 Surface Mount SOIC 8 -
RS Stock No. 912-7775
Mfr. Part No.AD629BNZ
MYR43.377
Each (In a Tube of 50)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.8MΩ 0dB - 86dB - 1 Through Hole PDIP 8 -
RS Stock No. 759-0055
Mfr. Part No.AD8277ARZ
MYR17.22
Each
units
Dual, Single 2 → 36 V ±2 → ±18V 0.5mV 0.08MΩ - 550kHz 80dB - 2 Surface Mount SOIC 14 Rail to Rail Output
RS Stock No. 660-6540
Mfr. Part No.INA2132U
MYR25.81
Each
units
Dual, Single 12 V, 15 V, 18 V, 24 V, 28 V, 3 V, 5 V, 9 V ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.08MΩ 0dB - 80dB - 2 Surface Mount SOIC 14 -
RS Stock No. 779-9564
Mfr. Part No.LT1994IMS8#PBF
MYR19.115
Each (In a Pack of 2)
units
Single 3 V - ±3mV 4.5kΩ 100dB 70MHz 55dB - 2 Surface Mount MSOP 8 Rail to Rail Output
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Description:
Maxim Integrated Products offer a range of audio power amplifiers that include Mono/Stereo Amplifiers, Stereo Headphone amplifiers, Differential audio power and Microphone amplifiers. Maxim audio ICs have different types of amplification from Class AB, Class D and Class G. Maxim ...
Maxim Integrated Products offer a range of audio ...
Description:
Maxim Integrated Products offer a range of audio power amplifiers that include Mono/Stereo Amplifiers, Stereo Headphone amplifiers, Differential audio power and Microphone amplifiers. Maxim audio ICs have different types of amplification from Class AB, Class D and Class G. Maxim ...
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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 ...