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. 806-7944
Mfr. Part No.AD8278ARMZ
PHP139.735
Each (In a Pack of 2)
units
Dual, Single 2 → 36 V ±2 → ±18V 500µV 120 (Differential) kΩ, 30 (Common Mode) kΩ - 1MHz 74dB - 1 Surface Mount MSOP 8 -
RS Stock No. 786-3362
Mfr. Part No.AD8476ARMZ
PHP264.59
Each
units
Dual 3 → 18 V ±1.5 → ±9V 900µV - 1V/V 6MHz - - 1 Surface Mount MSOP 8 Rail to Rail Output
RS Stock No. 218-8382
Mfr. Part No.INA117KU
PHP387.77
Each
units
Dual - ±15V 2mV 0.8MΩ 0dB - 66dB - 1 Surface Mount SOIC 8 -
RS Stock No. 100-0768
Mfr. Part No.INA117KU
PHP368.03
Each (In a Tube of 75)
units
Dual - ±15V 2mV 0.8MΩ 0dB - 66dB - 1 Surface Mount SOIC 8 -
RS Stock No. 160-1734
Mfr. Part No.AD8278ARMZ
PHP119.422
Each (In a Tube of 50)
units
Dual, Single 2 → 36 V ±2 → ±18V 500µV 120 (Differential) kΩ, 30 (Common Mode) kΩ - 1MHz 74dB - 1 Surface Mount MSOP 8 -
RS Stock No. 496-7165
Mfr. Part No.AD8137YRZ
PHP149.63
Each (In a Pack of 5)
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 2.7mV 0.8MΩ 0.172dB - 62dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 912-8801
Mfr. Part No.AD8137YRZ
PHP114.98
Each (In a Tube of 98)
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 2.7mV 0.8MΩ 0.172dB - 62dB - 1 Surface Mount SOIC 8 Rail to Rail Output
RS Stock No. 912-6145
Mfr. Part No.AD698APZ
PHP1,710.727
Each (In a Tube of 39)
units
- 17.5 V 13V - - - - - - - Surface Mount PLCC 28 -
RS Stock No. 912-7775
Mfr. Part No.AD629BNZ
PHP562.349
Each (In a Tube of 50)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.8MΩ 0dB - 86dB - 1 Through Hole PDIP 8 -
RS Stock No. 709-7109
Mfr. Part No.AD8350ARMZ20
PHP333.38
Each
units
Single 5 V, 9 V - 1mV 0.0002MΩ 21dB - - - 1 Surface Mount MSOP 8 -
RS Stock No. 111-2244
Mfr. Part No.AD8205YRZ
PHP138.08
Each (In a Tube of 98)
units
Single 5 V - 2mV 0.4MΩ 33.98dB - 76dB - 1 Surface Mount SOIC 8 -
RS Stock No. 159-7876
Mfr. Part No.AD8350ARMZ20
PHP265.13
Each (In a Tube of 50)
units
Single 5 V, 9 V - 1mV 0.0002MΩ 21dB - - - 1 Surface Mount MSOP 8 -
RS Stock No. 660-6540
Mfr. Part No.INA2132U
PHP303.97
Each
units
Dual, Single 12 V, 15 V, 18 V, 24 V, 28 V, 3 V, 5 V, 9 V ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 0.5mV 0.08MΩ 0dB - 80dB - 2 Surface Mount SOIC 14 -
RS Stock No. 759-0055
Mfr. Part No.AD8277ARZ
PHP212.25
Each
units
Dual, Single 2 → 36 V ±2 → ±18V 0.5mV 0.08MΩ - 550kHz 80dB - 2 Surface Mount SOIC 14 Rail to Rail Output
RS Stock No. 912-7763
Mfr. Part No.AD629ANZ
PHP434.02
Each (In a Tube of 50)
units
Dual - ±12 V, ±15 V, ±3 V, ±5 V, ±9 V 1mV 0.8MΩ 0dB - 77dB - 1 Through Hole PDIP 8 -
RS Stock No. 824-7052
Mfr. Part No.LMH6553MRE/NOPB
PHP396.90
Each
units
Single 4.5 → 12 V - - 15Ω 1.008V/V 875MHz 80dB - 1 Surface Mount SOIC 8 -
RS Stock No. 162-5028
Mfr. Part No.INA2132U
PHP298.20
Each (In a Tube of 50)
units
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 0.5mV 0.08MΩ 0dB - 80dB - 2 Surface Mount SOIC 14 -
RS Stock No. 538-8434
Mfr. Part No.AD8205YRZ
PHP180.08
Each (In a Pack of 5)
units
Single 5 V - 2mV 0.4MΩ 33.98dB - 76dB - 1 Surface Mount SOIC 8 -
RS Stock No. 497-0032
Mfr. Part No.AD628ARZ
PHP267.00
Each
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 SOIC 8 -
RS Stock No. 912-8845
Mfr. Part No.AD628ARZ
PHP213.15
Each (In a Tube of 98)
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 SOIC 8 -
Related Products
Differential Amplifiers are operational amplifiers configured to amplify ...
Description:
Differential Amplifiers are operational amplifiers configured to amplify differential input signals but to supress or reject common-mode signals; they incorporate on-chip resistors to define the differential gain.
Programmable Gain Amplifiers are Operational, Instrumentation or Differential ...
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Programmable Gain Amplifiers are Operational, Instrumentation or Differential Amplifiers in which the gain can be programmed or selected, either via hardware (IC pin selection) or software using a serial communications link.
Programmable Gain Amplifiers are Operational, Instrumentation or Differential ...
Description:
Programmable Gain Amplifiers are Operational, Instrumentation or Differential Amplifiers in which the gain can be programmed or selected, either via hardware (IC pin selection) or software using a serial communications link.
Programmable Gain Amplifiers are Operational, Instrumentation or Differential ...
Description:
Programmable Gain Amplifiers are Operational, Instrumentation or Differential Amplifiers in which the gain can be programmed or selected, either via hardware (IC pin selection) or software using a serial communications link.