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. 914-3046
Mfr. Part No.THS4541IRGTT
MYR27.58
Each
units
Single 3 V - 850µV - 119dB 850MHz 85dB - 1 Surface Mount QFN 16 Rail to Rail Output
RS Stock No. 661-2397
Mfr. Part No.INA159AIDGKT
MYR18.73
Each
units
Single 3 V, 5 V - 0.5mV 0.24MΩ 13.98dB - 80dB - 1 Surface Mount MSOP 8 Rail to Rail Input
RS Stock No. 197-7167
Mfr. Part No.INA149AID
MYR27.745
Each (In a Pack of 2)
units
Dual, Single - ±2 to ±18V 1100µV - - 500kHz - - 1 - SOIC 8 -
RS Stock No. 809-9266
Mfr. Part No.AD8137YCPZ-REEL7
MYR11.888
Each (In a Pack of 5)
units
Single 2.7 → 12 V - 2.6mV 800kΩ 91dB 110MHz 66dB - 1 Surface Mount LFCSP WD 8 Rail to Rail Output
RS Stock No. 154-6359
Mfr. Part No.LT1994CDD#PBF
MYR12.015
Each (In a Tube of 121)
units
Single 3 V - ±3mV .0045MΩ 100dB 70MHz 55dB - 2 Surface Mount DFN 8 Rail to Rail Input/Output
RS Stock No. 923-2433
Mfr. Part No.LMH6552MA/NOPB
MYR26.795
Each (In a Tube of 95)
units
Dual, Single 5 V, 9 V ±3 V, ±5 V 16.5mV 0.000015MΩ 0dB - - - 1 Surface Mount SOIC 8 -
RS Stock No. 121-9730
Mfr. Part No.LMH6553MRE/NOPB
MYR22.00
Each (On a Reel of 250)
units
Single 4.5 → 12 V - - 15Ω 1.008V/V 875MHz 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 806-7896
Mfr. Part No.AD8208WBRMZ
MYR18.06
Each (In a Pack of 2)
units
Single 4.5 → 5.5 V - ±2mV 220 (Common Mode) kΩ, 440 (Differential) kΩ 10V/V 70kHz 80dB - 1 Surface Mount MSOP 8 -
RS Stock No. 851-6859
Mfr. Part No.LTC6362IMS8#PBF
MYR17.008
Each (In a Pack of 5)
units
Single 2.8 → 5.25 V - ±30mV 230kΩ 95dB 180MHz 75dB - 1 Surface Mount MSOP 8 Rail to Rail Input/Output
RS Stock No. 145-1264
Mfr. Part No.AD8202YRZ
MYR12.466
Each (In a Tube of 98)
units
Single 5 V, 9 V - 2mV - 40dB - 82dB - 1 Surface Mount SOIC 8 -
RS Stock No. 160-2828
Mfr. Part No.AD8350ARMZ15
MYR22.883
Each (In a Tube of 50)
units
Single 11 V - ±1mV 200Ω 16dB 1.1GHz -67dB - 1 Surface Mount MSOP 8 -
RS Stock No. 162-5022
Mfr. Part No.INA154U
MYR14.229
Each (In a Tube of 75)
units
Dual - ±15V 0.75mV 0.05MΩ 0dB - 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 806-7938
Mfr. Part No.AD8271ARMZ
MYR14.055
Each (In a Pack of 2)
units
Dual - ±2.5 → ±18V 1500µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS Stock No. 806-7950
Mfr. Part No.AD8278BRZ
MYR16.345
Each (In a Pack of 2)
units
Dual, Single 2 → 36 V ±2 → ±18V 500µV 120kΩ - 1MHz 74dB - 1 Surface Mount SOIC 8 -
RS Stock No. 230-551
Mfr. Part No.AD629ARZ
MYR31.79
Each
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Surface Mount SOIC 8 -
RS Stock No. 106-6377
Mfr. Part No.AD629ARZ
MYR26.48
Each (In a Tube of 98)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Surface Mount SOIC 8 -
RS Stock No. 914-2982
Mfr. Part No.LMH3401IRMST
MYR69.98
Each
units
Single 5 V - - 29(Differential) Ω, 55 (Single) Ω 16dB 4 (Small Signal) GHz, 7 (Large Signal) GHz - - 1 Surface Mount UQFN 14 -
RS Stock No. 709-6061
Mfr. Part No.AD629ANZ
MYR38.38
Each
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. 145-6432
Mfr. Part No.AD8271BRMZ
MYR17.287
Each (In a Tube of 50)
units
Dual - ±2.5 → ±18V 1000µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS Stock No. 412-450
Mfr. Part No.AMP03GSZ
MYR30.53
Each
units
Dual - - 0.75mV - - - 80dB - 1 Surface Mount SOIC 8 -
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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 ...
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Description:
A range of high speed voltage comparators from Texas Instruments featuring response times of less than 200 ns. The range includes ultra-fast devices such as the TL3016 and TL3116 which have complementary (differential) outputs and typical switching times of 10 ...
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 ...
Linear Technology's differential amplifier is an operational amplifier ...
Description:
Linear Technology's differential amplifier is an operational amplifier (Op Amp) that amplifies the difference between two voltages. Some features include rail to rail output, precision film resistors, low noise and integrated filters.