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. 159-8118
Mfr. Part No.AD8276BRMZ
kr 25,687
Each (In a Tube of 50)
Units
Dual, Single 2 → 36 V ±2 → ±18V 0.5mV 0.08MΩ - 550kHz 80dB - 1 Through Hole MSOP 8 Rail to Rail Output
RS Stock No. 759-0046
Mfr. Part No.AD8276BRMZ
kr 33,60
Each
Units
Dual, Single 2 → 36 V ±2 → ±18V 0.5mV 0.08MΩ - 550kHz 80dB - 1 Through Hole MSOP 8 Rail to Rail Output
RS Stock No. 912-7378
Mfr. Part No.AD626ANZ
kr 88,346
Each (In a Tube of 50)
Units
Dual, Single 5 V ±5V 2.5mV 0.02MΩ - - 55dB - 1 Through Hole PDIP 8 -
RS Stock No. 522-8685
Mfr. Part No.AD626ANZ
kr 107,48
Each
Units
Dual, Single 5 V ±5V 2.5mV 0.02MΩ - - 55dB - 1 Through Hole PDIP 8 -
RS Stock No. 106-6377
Mfr. Part No.AD629ARZ
kr 51,589
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. 912-8977
Mfr. Part No.AD8132ARMZ
kr 29,019
Each (In a Tube of 50)
Units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 3.5mV 3MΩ 0.129dB - - - 1 Surface Mount MSOP 8 -
RS Stock No. 497-3687
Mfr. Part No.AD8132ARMZ
kr 37,99
Each
Units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 3.5mV 3MΩ 0.129dB - - - 1 Surface Mount MSOP 8 -
RS Stock No. 230-551
Mfr. Part No.AD629ARZ
kr 64,71
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. 697-7521
Mfr. Part No.ADA4932-1YCPZ-R2
kr 72,58
Each
Units
Dual, Single 5 V, 9 V ±3 V, ±5 V 2.2mV 16MΩ 66dB - 87dB - 1 Surface Mount LFCSP 16 -
RS Stock No. 183-1764
Mfr. Part No.AD8475BRMZ
kr 50,408
Each (In a Tube of 50)
Units
Dual, Single 3 → 10 V ±1.5 to ±5V - 1.75kΩ - 150MHz 86dB Differential 1 Surface Mount MSOP 10 Rail to Rail Input/Output
RS Stock No. 158-0520
Mfr. Part No.AD8138AARMZ
kr 39,88
Each (In a Tube of 50)
Units
Dual - ±5V 2.5mV 6MΩ 1.0045V/V 320MHz - - 1 - - - -
RS Stock No. 145-7417
Mfr. Part No.AD8278BRZ
kr 26,281
Each (In a Tube of 98)
Units
Dual, Single 2 → 36 V ±2 → ±18V 500µV 120kΩ - 1MHz 74dB - 1 Surface Mount SOIC 8 -
RS Stock No. 145-7195
Mfr. Part No.AD8271ARMZ
kr 22,598
Each (In a Tube of 50)
Units
Dual - ±2.5 → ±18V 1500µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS Stock No. 759-0055
Mfr. Part No.AD8277ARZ
kr 37,09
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. 145-1135
Mfr. Part No.LTC1992CMS8#PBF
kr 26,088
Each (In a Tube of 50)
Units
Dual, Single 2.7 11 V ±1.35 ±5V ±2.5mV 500MΩ 80dB 3MHz - - 1 Surface Mount MSOP 8 Rail to Rail Output
RS Stock No. 160-1725
Mfr. Part No.AD8208WBRMZ
kr 28,482
Each (In a Tube of 50)
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. 806-7931
Mfr. Part No.AD8271BRMZ
kr 42,57
Each (In a Pack of 2)
Units
Dual - ±2.5 → ±18V 1000µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS Stock No. 538-6595
Mfr. Part No.AD628ARMZ
kr 46,66
Each
Units
Dual, Single 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 3mV 0.22MΩ 40dB - 75dB - 2 Surface Mount MSOP 8 -
RS Stock No. 709-7060
Mfr. Part No.AD8203YRMZ
kr 33,60
Each
Units
Single 5 V - 2mV 0.38MΩ - 60kHz 80dB - 2 Surface Mount MSOP 8 Rail to Rail Output
RS Stock No. 160-2877
Mfr. Part No.ADA4940-1ACPZ-R2
kr 39,561
Each (On a Reel of 250)
Units
Single 7 V - 0.35mV 50MΩ 99dB 260MHz 86dB - 1 Surface Mount LFCSP 16 Rail to Rail Output