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 | |
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RS Stock No.
851-6821
Mfr. Part No.LT6350CMS8#PBF
BrandAnalog Devices
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MYR25.95
Each (In a Pack of 2)
units
|
Single | 2.7 → 12 V | - | 1.5mV | 4MΩ | - | 115MHz | 96dB | - | 2 | Surface Mount | MSOP | 8 | Rail to Rail Input/Output |
|
RS Stock No.
162-5022
Mfr. Part No.INA154U
BrandTexas Instruments
|
MYR14.229
Each (In a Tube of 75)
units
|
Dual | - | ±15V | 0.75mV | 0.05MΩ | 0dB | - | 80dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
877-8846
Mfr. Part No.AD8350ARMZ15
BrandAnalog Devices
|
MYR27.42
Each (In a Pack of 2)
units
|
Single | 11 V | - | ±1mV | 200Ω | 16dB | 1.1GHz | -67dB | - | 1 | Surface Mount | MSOP | 8 | - |
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RS Stock No.
811-5771
Mfr. Part No.LMH6881SQE/NOPB
BrandTexas Instruments
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MYR35.42
Each
units
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Single | 5 V | - | - | 100Ω | 26dB | 2.4GHz | -40dB | - | 1 | Surface Mount | WQFN | 24 | - |
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RS Stock No.
922-3255
Mfr. Part No.THS4511RGTT
BrandTexas Instruments
|
MYR33.17
Each (On a Reel of 250)
units
|
- | - | - | - | - | - | - | - | - | - | - | - | - | - |
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RS Stock No.
145-6433
Mfr. Part No.AD8278BRMZ
BrandAnalog Devices
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MYR13.446
Each (In a Tube of 50)
units
|
Dual, Single | 2 → 36 V | ±2 → ±18V | 500µV | 120kΩ | - | 1MHz | 74dB | - | 1 | Surface Mount | MSOP | 8 | - |
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RS Stock No.
100-3827
Mfr. Part No.INA133UA
BrandTexas Instruments
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MYR11.86
Each (In a Tube of 75)
units
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Dual, Single | 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V | ±15V | 1.5mV | 0.05MΩ | 0dB | - | 74dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
820-9454
Mfr. Part No.AD8274ARMZ
BrandAnalog Devices
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MYR14.802
Each (In a Pack of 5)
units
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Dual | - | ±2.5 → ±18V | 1100µV | 9kΩ | - | 10MHz | 83dB | - | 1 | Surface Mount | MSOP | 8 | - |
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RS Stock No.
197-7164
Mfr. Part No.INA148UA
BrandTexas Instruments
|
MYR25.497
Each (In a Tube of 75)
units
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Dual | 2.7 → 36 V | - | ±5mV | - | - | 100kHz | - | - | 1 | - | SOIC | 8 | - |
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RS Stock No.
197-7167
Mfr. Part No.INA149AID
BrandTexas Instruments
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MYR35.05
Each (In a Pack of 2)
units
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Dual, Single | - | ±2 to ±18V | 1100µV | - | - | 500kHz | - | - | 1 | - | SOIC | 8 | - |
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RS Stock No.
162-9811
Mfr. Part No.LMH3401IRMST
BrandTexas Instruments
|
MYR50.235
Each (On a Reel of 250)
units
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Single | 5 V | - | - | 29(Differential) Ω, 55 (Single) Ω | 16dB | 4 (Small Signal) GHz, 7 (Large Signal) GHz | - | - | 1 | Surface Mount | UQFN | 14 | - |
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RS Stock No.
130-1030
Mfr. Part No.AD8209AWBRMZ
BrandAnalog Devices
|
MYR18.335
Each (In a Pack of 2)
units
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Single | 4.5 → 5.5 V | - | ±2mV | - | 14V/V | 100kHz | 80dB | Single Ended | 1 | Surface Mount | MSOP | 8 | - |
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RS Stock No.
660-5320
Mfr. Part No.INA157U
BrandTexas Instruments
|
MYR17.87
Each
units
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Dual | - | ±15V | 0.5mV | 0.024MΩ | 6.02dB | - | 86dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
162-4859
Mfr. Part No.THS4140ID
BrandTexas Instruments
|
MYR35.01
Each (In a Tube of 75)
units
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Dual, Single | 5 V | ±15V | 7mV | 14.4MΩ | 67dB | - | 75dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
522-8455
Mfr. Part No.AMP03GPZ
BrandAnalog Devices
|
MYR40.25
Each
units
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Dual | - | ±6 → ± 18V | 0.75mV | - | - | - | 80dB | - | 1 | Through Hole | PDIP | 8 | - |
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RS Stock No.
183-1764
Mfr. Part No.AD8475BRMZ
BrandAnalog Devices
|
MYR24.896
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 |
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RS Stock No.
412-450
Mfr. Part No.AMP03GSZ
BrandAnalog Devices
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MYR30.53
Each
units
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Dual | - | - | 0.75mV | - | - | - | 80dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
806-7953
Mfr. Part No.AD8279ARZ
BrandAnalog Devices
|
MYR18.06
Each (In a Pack of 2)
units
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Dual, Single | 2 → 36 V | ±2 → ±18V | 500µV | 120kΩ | - | 1MHz | 74dB | - | 1 | Surface Mount | SOIC | 14 | - |
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RS Stock No.
177-7172
Mfr. Part No.LT6350CMS8#PBF
BrandAnalog Devices
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MYR35.708
Each (In a Tube of 50)
units
|
Single | 2.7 → 12 V | - | 1.5mV | 4MΩ | - | 115MHz | 96dB | - | 2 | Surface Mount | MSOP | 8 | Rail to Rail Input/Output |
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RS Stock No.
193-5521
Mfr. Part No.MCP6D11-E/MG
BrandMicrochip
|
MYR5.059
Each (In a Tube of 120)
units
|
Single | 2.5 V | - | - | - | - | - | - | - | - | SMD | - | - | - |
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