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. 162-5292
Mfr. Part No.THS4131IDGN
PHP372.163
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. 709-5068
Mfr. Part No.AD8202YRZ
PHP200.40
Each
units
Single 5 V, 9 V - 2mV - 40dB - 82dB - 1 Surface Mount SOIC 8 -
RS Stock No. 811-5771
Mfr. Part No.LMH6881SQE/NOPB
PHP469.35
Each
units
Single 5 V - - 100Ω 26dB 2.4GHz -40dB - 1 Surface Mount WQFN 24 -
RS Stock No. 427-008
Mfr. Part No.AD629BRZ
PHP513.55
Each
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.8MΩ 0dB - 86dB - 1 Surface Mount SOIC 8 -
RS Stock No. 145-6212
Mfr. Part No.LT1990CS8#PBF
PHP111.164
Each (In a Tube of 100)
units
Dual, Single 2.7 → 36 V ±250V 4.5mV 2MΩ - 105kHz 58dB - 2 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 145-6972
Mfr. Part No.AD8202WYRZ
PHP188.551
Each (In a Tube of 98)
units
Single 5 V, 9 V - 2mV - 40dB - 82dB - 1 Surface Mount SOIC 8 -
RS Stock No. 912-8703
Mfr. Part No.AD629BRZ
PHP444.227
Each (In a Tube of 98)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.8MΩ 0dB - 86dB - 1 Surface Mount SOIC 8 -
RS Stock No. 912-6237
Mfr. Part No.AD8275ARMZ
PHP198.645
Each (In a Tube of 50)
units
Dual, Single 5 V ±3 V, ±5 V - 0.108MΩ 13.98dB - 80dB - 1 Surface Mount MSOP 8 Rail to Rail Output
RS Stock No. 824-7020
Mfr. Part No.LME49724MR/NOPB
PHP144.88
Each (In a Pack of 2)
units
Dual - ±2.5 → ±18V - - - 50MHz - - 1 Surface Mount SOIC 8 -
RS Stock No. 462-0967
Mfr. Part No.THS4505DGN
PHP290.53
Each
units
Dual, Single 5 V ±5V 7mV 0.025MΩ 54dB 200MHz 74dB - 1 Surface Mount MSOP 8 -
RS Stock No. 159-7869
Mfr. Part No.AD8216YRZ
PHP173.328
Each (In a Tube of 98)
units
Single 5 V - 0.5mV 0.4MΩ 9.54dB - 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 786-9720
Mfr. Part No.LT6552IS8#PBF
PHP159.77
Each (In a Pack of 2)
units
Single 3.3 V - 25mV 300kΩ - 55MHz 58dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 858-0683
Mfr. Part No.LT1990IS8#PBF
PHP206.668
Each (In a Pack of 5)
units
Single 2.7 → 36 V - 6.7mV 2MΩ - 105kHz 57dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 796-9151
Mfr. Part No.AD8476BCPZ-WP
PHP324.45
Each
units
Dual, Single 3 → 18 V ±1.5 → ±9V 200µV - - 6MHz 90dB - 1 Surface Mount LFCSP 16 Rail to Rail Output
RS Stock No. 922-3255
Mfr. Part No.THS4511RGTT
PHP425.78
Each (On a Reel of 250)
units
- - - - - - - - - - - - - -
RS Stock No. 162-4858
Mfr. Part No.THS4130ID
PHP381.15
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. 130-1030
Mfr. Part No.AD8209AWBRMZ
PHP229.725
Each (In a Pack of 2)
units
Single 4.5 → 5.5 V - ±2mV - 14V/V 100kHz 80dB Single Ended 1 Surface Mount MSOP 8 -
RS Stock No. 155-7495
Mfr. Part No.LTC6406IUD#PBF
PHP312.153
Each (In a Tube of 121)
units
Single 2.7 → 3.5 V - ±5mV 130 (Common Mode) kΩ, 3 (Differential Mode) kΩ 90dB 3GHz - - 1 Surface Mount QFN 16 Rail to Rail Input
RS Stock No. 197-7167
Mfr. Part No.INA149AID
PHP404.66
Each (In a Pack of 2)
units
Dual, Single - ±2 to ±18V 1100µV - - 500kHz - - 1 - SOIC 8 -
RS Stock No. 145-1135
Mfr. Part No.LTC1992CMS8#PBF
PHP133.139
Each (In a Tube of 50)
units
Dual, Single 2.7 → 11 V ±1.35 → ±5V ±2.5mV 500MΩ 80dB 3MHz - - 1 Surface Mount MSOP 8 Rail to Rail Output
Related Products
The LM111, LM211 and LM311 from Texas Instruments ...
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The LM111, LM211 and LM311 from Texas Instruments are differential input voltage comparators with a wide operating voltage range and 200 ns response time. The inputs of these devices can be isolated from system ground and the uncommitted outputs can ...
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A range of high speed voltage comparators from Texas Instruments featuring response times of less than 200 ns. The range includes ultra-fast devices such as the TL3016 and TL3116 which have complementary (differential) outputs and typical switching times of 10 ...
The Texas Instruments LM139, LM239, LM339 and LM2901 ...
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The Texas Instruments LM139, LM239, LM339 and LM2901 are quad differential input voltage comparators designed to operate from a single power supply over a wide range of voltages. The common mode input voltage range includes ground and the devices have ...
The Texas Instruments LM193, LM293, LM393 and LM2903 ...
Description:
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