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. 412-450
Mfr. Part No.AMP03GSZ
$12.62
Each
units
Dual - - 0.75mV - - - 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 697-7521
Mfr. Part No.ADA4932-1YCPZ-R2
$14.75
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. 912-6312
Mfr. Part No.ADA4932-1YCPZ-R2
$9.60
Each (On a Reel of 250)
units
Dual, Single 5 V, 9 V ±3 V, ±5 V 2.2mV 16MΩ 66dB - 87dB - 1 Surface Mount LFCSP 16 -
RS Stock No. 159-8118
Mfr. Part No.AD8276BRMZ
$5.56
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. 912-6628
Mfr. Part No.AD8206YRZ
$4.70
Each (In a Tube of 98)
units
Single 5 V - 2mV 0.4MΩ 26.02dB 100kHz 76dB - 1 Surface Mount SOIC 8 -
RS Stock No. 647-665
Mfr. Part No.INA106KP
$16.67
Each
units
Dual - ±15V 0.5mV 0.11MΩ 20dB - 86dB - 1 Through Hole PDIP 8 -
RS Stock No. 111-2244
Mfr. Part No.AD8205YRZ
$5.15
Each (In a Tube of 98)
units
Single 5 V - 2mV 0.4MΩ 33.98dB - 76dB - 1 Surface Mount SOIC 8 -
RS Stock No. 161-0129
Mfr. Part No.AMP03GSZ
$9.80
Each (In a Tube of 98)
units
Dual - - 0.75mV - - - 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 162-6741
Mfr. Part No.THS4531ID
$4.764
Each (In a Tube of 75)
units
Single 2.5 → 5.5 V - ±2000µV 200kΩ 114dB 27MHz 90dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 824-7020
Mfr. Part No.LME49724MR/NOPB
$4.75
Each (In a Pack of 2)
units
Dual - ±2.5 → ±18V - - - 50MHz - - 1 Surface Mount SOIC 8 -
RS Stock No. 823-0041
Mfr. Part No.LTC6409CUDB#TRMPBF
$19.15
Each
units
Single 2.7 → 5.25 V - ±1400µV 165 (Common Mode) kΩ, 860 (Differential Mode) Ω 65dB 10GHz - - 1 Surface Mount QFN 10 -
RS Stock No. 822-4386
Mfr. Part No.AD8479BRZ
$17.20
Each
units
Dual - ±2.5 → ±18V 1mV 2000Ω 1V/V 130kHz - - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 774-1408
Mfr. Part No.THS4531ID
$5.29
Each
units
Single 2.5 → 5.5 V - ±2000µV 200kΩ 114dB 27MHz 90dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 912-8810
Mfr. Part No.AD8139ARDZ
$12.56
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
RS Stock No. 923-2433
Mfr. Part No.LMH6552MA/NOPB
$11.257
Each (In a Tube of 95)
units
Dual, Single 5 V, 9 V ±3 V, ±5 V 16.5mV 0.000015MΩ 0dB - - - 1 Surface Mount SOIC 8 -
RS Stock No. 922-3221
Mfr. Part No.INA159AIDGKT
$6.228
Each (On a Reel of 250)
units
- - - - - - - - - - - - - -
RS Stock No. 496-7171
Mfr. Part No.AD8139ARDZ
$15.07
Each
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
RS Stock No. 162-4336
Mfr. Part No.THS4131CD
$11.321
Each (In a Tube of 75)
units
Dual, Single 5 V ±15V 2mV 34MΩ 78dB 225MHz 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 759-0046
Mfr. Part No.AD8276BRMZ
$6.76
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. 178-8879
Mfr. Part No.LME49724MR/NOPB
$8.466
Each (In a Tube of 95)
units
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Description:
Differential Amplifiers, Analog Devices Differential Amplifiers by Analog Devices are integrated and optimised for differential signalling applications These speciality amplifiers have inherent common mode rejection properties that provide a low harmonic distortion with an output gain and phase matching. ...