Differential Amplifiers

A differential amplifier is a type of electronic amplifier that increases the difference between two input voltages. Differential amplifiers also suppress voltage to be common to the two inputs. A digital amplifier is one of the most used and important components within integrated circuits (ICs).

Differential Amplifier inputs

  • One inverting
  • One non-inverting

Why 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 will 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, such as 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 converters

A Differential amplifier can also be configured to operate as a 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 do CMRR and PSRR stand for?

  • CMRR is the abbreviated version of Common Mode Rejection Ratio and refers to the power ratio of differential gains between the common-mode gain. This unit is measured in positive decibels.
  • PSRR is the abbreviated version of Power Supply Rejection Ratio and refers to an amplifiers ability to consistently maintain output voltage white the DC voltage supplied is varied.

...
Read more Read less

검색 필터링

총 167개 제품 중 21번째-40번째 제품을 조회 중
한장내 검색 결과 수
제품설명 단가 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 제품 번호 806-7938
제조사 부품 번호AD8271ARMZ
제조사Analog Devices
₩5,017.35
Each (In a Pack of 2)
수량
Dual - ±2.5 → ±18V 1500µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS 제품 번호 162-5518
제조사 부품 번호THS4130CDGN
₩11,307.25
Each (In a Tube of 80)
수량
Dual, Single 5 V ±15V 2mV 34MΩ 78dB 225MHz 80dB - 1 Surface Mount MSOP 8 -
RS 제품 번호 912-9936
제조사 부품 번호ADA4940-2ACPZ-R7
제조사Analog Devices
₩6,823.10
Each (On a Reel of 1500)
수량
Single 5 V - 0.35mV 33kΩ 99dB 260MHz 86dB - 2 Surface Mount LFCSP VQ 24 Rail to Rail Output
RS 제품 번호 806-7944
제조사 부품 번호AD8278ARMZ
제조사Analog Devices
₩4,262.50
Each (In a Pack of 2)
수량
Dual, Single 2 → 36 V ±2 → ±18V 500µV 30 (Common Mode) kΩ, 120 (Differential) kΩ - 1MHz 74dB - 1 Surface Mount MSOP 8 -
RS 제품 번호 823-0041
제조사 부품 번호LTC6409CUDB#TRMPBF
제조사Analog Devices
₩15,436.45
Each
수량
Single 2.7 → 5.25 V - ±1400µV 165 (Common Mode) kΩ, 860 (Differential Mode) Ω 65dB 10GHz - - 1 Surface Mount QFN 10 -
RS 제품 번호 197-7167
제조사 부품 번호INA149AID
₩10,026.95
Each (In a Pack of 2)
수량
Dual, Single - ±2 to ±18V 1100µV - - 500kHz - - 1 - SOIC 8 -
RS 제품 번호 806-7896
제조사 부품 번호AD8208WBRMZ
제조사Analog Devices
₩6,155.05
Each (In a Pack of 2)
수량
Single 4.5 → 5.5 V - ±2mV 220 (Common Mode) kΩ, 440 (Differential) kΩ 10V/V 70kHz 80dB - 1 Surface Mount MSOP 8 -
RS 제품 번호 787-6857
제조사 부품 번호MC10H116FNG
제조사ON Semiconductor
₩7,478.75
Each
수량
Single -5.2 V - - - - - - - 1 Surface Mount PLCC 20 -
RS 제품 번호 709-6061
제조사 부품 번호AD629ANZ
제조사Analog Devices
₩13,077.35
Each
수량
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Through Hole PDIP 8 -
RS 제품 번호 761-9285
제조사 부품 번호LTC1992IMS8#PBF
제조사Analog Devices
₩7,342.35
Each
수량
Dual, Single 2.7 V ±5V ±2.5mV 500MΩ 80dB 4MHz 60dB - 2 Surface Mount MSOP 8 Rail to Rail Input/Output
RS 제품 번호 921-2823
제조사 부품 번호LMH6881SQE/NOPB
₩8,579.25
Each (On a Reel of 250)
수량
Single 5 V - - 100Ω 26dB 2.4GHz -40dB - 1 Surface Mount WQFN 24 -
RS 제품 번호 100-3838
제조사 부품 번호INA148UA
₩6,618.50
Each (In a Tube of 75)
수량
Dual, Single 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 5mV 2MΩ 0dB - 70dB - 1 Surface Mount SOIC 8 -
RS 제품 번호 914-3046
제조사 부품 번호THS4541IRGTT
₩8,862.90
Each
수량
Single 3 V - 850µV - 119dB 850MHz 85dB - 1 Surface Mount QFN 16 Rail to Rail Output
RS 제품 번호 183-1989
제조사 부품 번호AD8475BRMZ
제조사Analog Devices
₩9,498.40
Each (In a Pack of 2)
수량
Dual, Single 3 → 10 V ±1.5 to ±5V - 1.75kΩ - 150MHz 86dB Differential 1 Surface Mount MSOP 10 Rail to Rail Input/Output
RS 제품 번호 159-9268
제조사 부품 번호ADA4950-2YCPZ-R7
제조사Analog Devices
₩13,336.20
Each (On a Reel of 1500)
수량
Dual, Single 3 → 11 V ±5V 2.5mV 32kΩ 66dB 750MHz -64dB - 2 Surface Mount LFCSP VQ 24 -
RS 제품 번호 796-9151
제조사 부품 번호AD8476BCPZ-WP
제조사Analog Devices
₩9,107.80
Each
수량
Dual, Single 3 → 18 V ±1.5 → ±9V 200µV - - 6MHz 90dB - 1 Surface Mount LFCSP 16 Rail to Rail Output
RS 제품 번호 922-3255
제조사 부품 번호THS4511RGTT
₩10,757.00
Each (On a Reel of 250)
수량
- - - - - - - - - - - - - -
RS 제품 번호 806-7931
제조사 부품 번호AD8271BRMZ
제조사Analog Devices
₩7,157.90
Each (In a Pack of 2)
수량
Dual - ±2.5 → ±18V 1000µV 1GΩ - 20MHz 80dB - 1 Surface Mount MSOP 10 Rail to Rail Input
RS 제품 번호 378-2783
제조사 부품 번호INA146UA
₩8,649.00
Each
수량
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 10mV 0.11MΩ 40dB - 70dB - 1 Surface Mount SOIC 8 -
RS 제품 번호 660-5308
제조사 부품 번호INA154UA
₩3,997.45
Each
수량
Dual - ±15V 1.5mV 0.05MΩ 0dB - 74dB - 1 Surface Mount SOIC 8 -