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.
912-6145
Mfr. Part No.AD698APZ
BrandAnalog Devices
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SGD51.328
Each (In a Tube of 39)
units
|
- | 17.5 V | 13V | - | - | - | - | - | - | - | Surface Mount | PLCC | 28 | - |
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|
RS Stock No.
697-6988
Mfr. Part No.AD698APZ
BrandAnalog Devices
|
SGD58.60
Each
units
|
- | 17.5 V | 13V | - | - | - | - | - | - | - | Surface Mount | PLCC | 28 | - |
|
RS Stock No.
527-580
Mfr. Part No.THS4131CD
BrandTexas Instruments
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SGD11.34
Each
units
|
Dual, Single | 5 V | ±15V | 2mV | 34MΩ | 78dB | 225MHz | 80dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
162-4336
Mfr. Part No.THS4131CD
BrandTexas Instruments
|
SGD10.104
Each (In a Tube of 75)
units
|
Dual, Single | 5 V | ±15V | 2mV | 34MΩ | 78dB | 225MHz | 80dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
230-551
Mfr. Part No.AD629ARZ
BrandAnalog Devices
|
SGD10.91
Each
units
|
Dual | - | ±12 V, ±15 V, ±3 V, ±5 V, ±9 V | 1mV | 0.8MΩ | 0dB | - | 77dB | - | 1 | Surface Mount | SOIC | 8 | - |
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RS Stock No.
851-6821
Mfr. Part No.LT6350CMS8#PBF
BrandAnalog Devices
|
SGD9.365
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.
809-9288
Mfr. Part No.AD8207WBRZ
BrandAnalog Devices
|
SGD7.97
Each
units
|
Single | 3.3 → 5.5 V | - | 100µV | - | 20V/V | 150kHz | 80dB | - | 1 | Surface Mount | SOIC | 8 | No |
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RS Stock No.
912-7561
Mfr. Part No.AD628ARMZ
BrandAnalog Devices
|
SGD6.419
Each (In a Tube of 50)
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 | - |
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RS Stock No.
759-0042
Mfr. Part No.AD8276ARMZ
BrandAnalog Devices
|
SGD4.31
Each
units
|
Dual, Single | 2 → 36 V | ±2 → ±18V | 0.5mV | 0.08MΩ | - | 550kHz | 80dB | - | 1 | Surface Mount | MSOP | 8 | Rail to Rail Output |
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RS Stock No.
160-3354
Mfr. Part No.AD8207WBRZ
BrandAnalog Devices
|
SGD6.488
Each (In a Tube of 98)
units
|
Single | 3.3 → 5.5 V | - | 100µV | - | 20V/V | 150kHz | 80dB | - | 1 | Surface Mount | SOIC | 8 | No |
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RS Stock No.
106-6377
Mfr. Part No.AD629ARZ
BrandAnalog Devices
|
SGD8.83
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.
100-0744
Mfr. Part No.INA105KP
BrandTexas Instruments
|
SGD11.339
Each (In a Tube of 50)
units
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Dual | - | ±15V | 0.5mV | 0.05MΩ | 0dB | - | 72dB | - | 1 | Through Hole | PDIP | 8 | - |
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RS Stock No.
647-659
Mfr. Part No.INA105KP
BrandTexas Instruments
|
SGD13.91
Each
units
|
Dual | - | ±15V | 0.5mV | 0.05MΩ | 0dB | - | 72dB | - | 1 | Through Hole | PDIP | 8 | - |
|
|
RS Stock No.
177-7172
Mfr. Part No.LT6350CMS8#PBF
BrandAnalog Devices
|
SGD5.40
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 |
|
RS Stock No.
538-6595
Mfr. Part No.AD628ARMZ
BrandAnalog Devices
|
SGD7.99
Each
units
|
Dual, Single | 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V | ±12 V, ±15 V, ±3 V, ±5 V, ±9 V | 3mV | 0.22MΩ | 40dB | - | 75dB | - | 2 | Surface Mount | MSOP | 8 | - |
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RS Stock No.
160-1736
Mfr. Part No.AD8279ARZ
BrandAnalog Devices
|
SGD5.253
Each (In a Tube of 56)
units
|
Dual, Single | 2 → 36 V | ±2 → ±18V | 500µV | 120kΩ | - | 1MHz | 74dB | - | 1 | Surface Mount | SOIC | 14 | - |
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RS Stock No.
912-6237
Mfr. Part No.AD8275ARMZ
BrandAnalog Devices
|
SGD5.106
Each (In a Tube of 50)
units
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Dual, Single | 5 V | ±3 V, ±5 V | - | 0.108MΩ | 13.98dB | - | 80dB | - | 1 | Surface Mount | MSOP | 8 | Rail to Rail Output |
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RS Stock No.
761-8582
Mfr. Part No.LT1994CMS8#PBF
BrandAnalog Devices
|
SGD5.98
Each
units
|
Single | 3 V | - | ±3mV | .0045MΩ | 100dB | 70MHz | 55dB | - | 2 | Surface Mount | MSOP | 8 | Rail to Rail Input/Output |
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RS Stock No.
159-9369
Mfr. Part No.AD8476BCPZ-WP
BrandAnalog Devices
|
SGD7.115
Each (In a Tray of 50)
units
|
Dual, Single | 3 → 18 V | ±1.5 → ±9V | 200µV | - | - | 6MHz | 90dB | - | 1 | Surface Mount | LFCSP | 16 | Rail to Rail Output |
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RS Stock No.
159-8118
Mfr. Part No.AD8276BRMZ
BrandAnalog Devices
|
SGD4.606
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 |
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