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.
497-3700
Mfr. Part No.AD8132ARZ
BrandAnalog Devices
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MYR18.51
Each
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.
145-6242
Mfr. Part No.AD8274ARMZ
BrandAnalog Devices
|
MYR9.995
Each (In a Tube of 50)
units
|
Dual | - | ±2.5 → ±18V | 1100µV | 9kΩ | - | 10MHz | 83dB | - | 1 | Surface Mount | MSOP | 8 | - |
|
RS Stock No.
517-0340
Mfr. Part No.THS4140ID
BrandTexas Instruments
|
MYR41.84
Each
units
|
Dual, Single | 5 V | ±15V | 7mV | 14.4MΩ | 67dB | - | 75dB | - | 1 | Surface Mount | SOIC | 8 | - |
|
RS Stock No.
660-5320
Mfr. Part No.INA157U
BrandTexas Instruments
|
MYR17.87
Each
units
|
Dual | - | ±15V | 0.5mV | 0.024MΩ | 6.02dB | - | 86dB | - | 1 | Surface Mount | SOIC | 8 | - |
|
RS Stock No.
912-8810
Mfr. Part No.AD8139ARDZ
BrandAnalog Devices
|
MYR29.431
Each (In a Tube of 98)
units
|
Dual, Single | 5 V, 9 V | ±3 V, ±5 V | 0.5mV | 1.5MΩ | 0.009dB | - | 75dB | - | 1 | Surface Mount | SOIC | 8 | Rail to Rail Output |
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RS Stock No.
709-5061
Mfr. Part No.AD8202WYRZ
BrandAnalog Devices
|
MYR17.28
Each
units
|
Single | 5 V, 9 V | - | 2mV | - | 40dB | - | 82dB | - | 1 | Surface Mount | SOIC | 8 | - |
|
RS Stock No.
159-7867
Mfr. Part No.AD8203YRMZ
BrandAnalog Devices
|
MYR13.775
Each (In a Tube of 50)
units
|
Single | 5 V | - | 2mV | 0.38MΩ | - | 60kHz | 80dB | - | 2 | Surface Mount | MSOP | 8 | Rail to Rail Output |
|
RS Stock No.
660-5314
Mfr. Part No.INA154U
BrandTexas Instruments
|
MYR15.06
Each
units
|
Dual | - | ±15V | 0.75mV | 0.05MΩ | 0dB | - | 80dB | - | 1 | Surface Mount | SOIC | 8 | - |
|
|
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 | - |
|
RS Stock No.
160-9858
Mfr. Part No.AD8479BRZ
BrandAnalog Devices
|
MYR36.271
Each (In a Tube of 98)
units
|
Dual | - | ±2.5 → ±18V | 1mV | 2000Ω | 1V/V | 130kHz | - | - | 1 | Surface Mount | SOIC | 8 | Rail to Rail Output |
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RS Stock No.
197-7132
Mfr. Part No.INA105KU
BrandTexas Instruments
|
MYR35.868
Each (In a Tube of 75)
units
|
Single | 12 V | ±18V | 50µV | - | - | 1MHz | - | - | 1 | - | SOIC | 8 | - |
|
RS Stock No.
160-1735
Mfr. Part No.AD8278ARZ
BrandAnalog Devices
|
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.
851-6821
Mfr. Part No.LT6350CMS8#PBF
BrandAnalog Devices
|
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 |
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RS Stock No.
145-7178
Mfr. Part No.AD8276BRZ
BrandAnalog Devices
|
MYR11.94
Each (In a Tube of 98)
units
|
Dual, Single | 2 → 36 V | ±2 → ±18V | 0.5mV | 0.08MΩ | - | 550kHz | 80dB | - | 1 | Surface Mount | SOIC | 8 | Rail to Rail Output |
|
RS Stock No.
230-551
Mfr. Part No.AD629ARZ
BrandAnalog Devices
|
MYR30.10
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.
121-6909
Mfr. Part No.ADA4927-1YCPZ-R2
BrandAnalog Devices
|
MYR33.857
Each (On a Reel of 250)
units
|
Dual, Single | 5 V | ±5V | 5.2mV | 7.5kΩ | 1V/V | 2GHz | -70dB | - | 1 | Surface Mount | LFCSP | 16 | - |
|
RS Stock No.
100-3878
Mfr. Part No.THS4130IDGN
BrandTexas Instruments
|
MYR31.12
Each (In a Tube of 80)
units
|
Dual, Single | 5 V | ±15V | 2mV | 34MΩ | 78dB | 225MHz | 80dB | - | 1 | Surface Mount | MSOP | 8 | - |
|
RS Stock No.
697-7221
Mfr. Part No.AD8138AARMZ
BrandAnalog Devices
|
MYR31.55
Each
units
|
Dual | - | ±5V | 2.5mV | 6MΩ | 1.0045V/V | 320MHz | - | - | 1 | - | - | - | - |
|
RS Stock No.
218-8382
Mfr. Part No.INA117KU
BrandTexas Instruments
|
MYR33.24
Each
units
|
Dual | - | ±15V | 2mV | 0.8MΩ | 0dB | - | 66dB | - | 1 | Surface Mount | SOIC | 8 | - |
|
RS Stock No.
824-7020
Mfr. Part No.LME49724MR/NOPB
BrandTexas Instruments
|
MYR11.68
Each (In a Pack of 2)
units
|
Dual | - | ±2.5 → ±18V | - | - | - | 50MHz | - | - | 1 | Surface Mount | SOIC | 8 | - |
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