About Differential Amplifiers

Analog Devices Differential Amplifiers

Differential amplifiers are amplifiers that use two inputs; the difference between them is amplified. Differential amplifiers are used in a variety of applications, such as switching and voltage regulation. They are also used in analog-to-digital conversion circuits and in instrumentation circuits. A differential amplifier is composed of two transistors. The current flowing through one transistor is proportional to the difference between the two input signals. The output voltage is then the difference between the two input signals multiplied by the gain of the amplifier. Differential amplifiers provide several advantages over single-ended amplifiers. They are more immune to common-mode noise, which is noise present on both inputs, and they can provide more linear amplification. Additionally, they can be used to amplify signals with low input impedance. Differential amplifiers can be used in many types of applications, depending on the requirements of the application. For example, they can be used in precision amplifiers, audio amplifiers, servo amplifiers, and stability amplifiers.

Differential Amplifiers

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(Ex. GST)(▲▼)		Enter Qty SeriesNumber of ChannelsGBP - Gain Bandwidth ProductSR - Slew RateOperating Supply CurrentCMRR - Common Mode Rejection RatioOutput Current per ChannelSupply Current per ChannelIb - Input Bias CurrentVos - Input Offset VoltageSupply Voltage - MaxSupply Voltage - MinMinimum Operating TemperatureMaximum Operating TemperatureMounting StylePackage / CasePd - Power DissipationQualificationPackaging
  
                       
AD8276ARZ-R7


Differential Amplifiers Low Pwr Unity-Gain Wide Supply Range
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Analog Devices 431
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USD 2.0533
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Ad82761 Channel 1.1 V/Us0.2 mA86 Db 0.2 mA A t +/- 5 v 200 uV36 V2 V- 40 C+ 125 CSmd/SmtSOIC - 8  Reel
AD8139ACPZ-REEL7


Differential Amplifiers High Performance Low Noise ADC Driver
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Analog Devices 420
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USD 4.0721
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Ad81391 Channel410 Mhz800 V/Us24.5 mA80 Db100 mA 8 uA0.5 mV11 V3 V- 40 C+ 125 CSmd/SmtLFCSP - 8  Reel
AD8131ARZ-REEL7


Differential Amplifiers SOIC Lo-Cost Hi-Spd Differential Driver
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Analog Devices 336
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USD 3.6662
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Ad81311 Channel400 Mhz2000 V/Us10.25 mA70 Db 10.25 mA0.5 uA @ 5 v2 mV11 V2.7 V- 40 C+ 125 CSmd/SmtSOIC - 8250 mW Reel
AD629ARZ


Differential Amplifiers SOIC High CM Vltg Difference Amplifier
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Analog Devices 310
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USD 4.4695
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Ad6291 Channel500 Khz2.1 V/Us0.9 mA77 Db   0.2 mV  - 40 C+ 85 CSmd/SmtSOIC - 8  Tube
AD8138ARMZ


Differential Amplifiers MiniSO LoDstort'n Different'l I/O 500MHz
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Analog Devices 299
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USD 4.7311
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Ad81381 Channel320 Mhz1150 V/Us20 mA- 77 Db95 mA20 mA7 uA1 mV11 V3 V- 40 C+ 85 CSmd/SmtMSOP - 8550 mW Tube
AD628ARZ-R7


Differential Amplifiers SOIC Hi CM Vltg Gain Prog Diff Amp
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Analog Devices 282
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USD 3.3355
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Ad6281 Channel600 Khz0.3 V/Us 75 Db   1.5 mV36 V4.5 V- 40 C+ 85 CSmd/SmtSOIC - 8  Reel
LTC1992HMS8#PBF


Differential Amplifiers Fully Differential In/Out Amplifier
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Analog Devices 223
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USD 5.6161
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Ltc19921 Channel3.2 mhz0.75 V/Us0.65 mA90 Db30 mA 0.000002 uA0.25 mV12 V2.7 V- 40 C+ 125 CSmd/SmtMSOP - 8 Aec - Q100Tube
AD8205YRZ-RL


Differential Amplifiers Single Supply Diff Amp w/Bipolar Output
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Analog Devices 220
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USD 4.0657
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Ad82051 Channel50 Khz0.5 V/Us 78 Db   2 mV5.5 V4.5 V- 40 C+ 150 CSmd/SmtSOIC - 8  Cut Tape
AD8147ACPZ-R2


Differential Amplifiers Triple Differential Driver for HD Video
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Analog Devices 218
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USD 8.505
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Ad81473 Channel600 Mhz3000 V/Us61.5 mA49 Db87 mA61.5 mA160 uA36 mV5.5 V4.5 V- 40 C+ 85 CSmd/SmtLFCSP - 24  Reel
AD8131ARMZ-REEL7


Differential Amplifiers MiniSO LoCost Hi-Spd Differential Driver
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Analog Devices 194
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USD 3.1686
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Ad81311 Channel400 Mhz2000 V/Us11.5 mA- 70 Db60 mA11.5 mA0.5 uA2 mV11 V2.7 V- 40 C+ 125 CSmd/SmtMSOP - 8250 mW Reel
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