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  2. Instrumentation amplifier - Wikipedia

    en.wikipedia.org/wiki/Instrumentation_amplifier

    An instrumentation amplifier can also be built with two op-amps to save on cost, but the gain must be higher than two (+6 dB). [ 4 ] [ 5 ] Instrumentation amplifiers can be built with individual op-amps and precision resistors, but are also available in integrated circuit from several manufacturers (including Texas Instruments , Analog Devices ...

  3. Operational amplifier - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier

    Many standard integrated circuit op amps cost only a few cents; however, some integrated or hybrid operational amplifiers with special performance specifications may cost over US$100. [2] Op amps may be packaged as components or used as elements of more complex integrated circuits. The op amp is one type of differential amplifier.

  4. List of LM-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_LM-series...

    Dual op-amps with fixed 2.5 V reference [20] LM611 Op-amp with an adjustable voltage reference [21] LM614 Quadruple op-amps with an adjustable voltage reference [22] LM675 Power op-amp with a maximal current output of 3 amperes [23] LM709 Yes General-purpose op-amp [24] LM741 LM709 General-purpose op-amp. [25] Widely used. LM747: Yes

  5. Operational amplifier applications - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier...

    where Z dif is the op-amp's input impedance to differential signals, and A OL is the open-loop voltage gain of the op-amp (which varies with frequency), and B is the feedback factor (the fraction of the output signal that returns to the input). [3] [4] In the case of the ideal op-amp, with A OL infinite and Z dif infinite, the input impedance ...

  6. Differential amplifier - Wikipedia

    en.wikipedia.org/wiki/Differential_amplifier

    An op-amp differential amplifier can be built with predictable and stable gain by applying negative feedback (Figure 5). [nb 5] Some kinds of differential amplifier usually include several simpler differential amplifiers. For example, a fully differential amplifier, an instrumentation amplifier, or an isolation amplifier are often built from a ...

  7. File:Op-Amp Instrumentation Amplifier.svg - Wikipedia

    en.wikipedia.org/wiki/File:Op-Amp...

    A circuit diagram of an instrumentation amplifier made using operational amplifiers. Combines very high input impedance, high common-mode rejection, low DC offset, and other properties used in making very accurate, low-noise measurements: Date: 26 January 2009: Source: Own work: Author: Inductiveload: Permission (Reusing this file)

  8. LM13700 - Wikipedia

    en.wikipedia.org/wiki/LM13700

    The LM13700 is an integrated circuit (IC) containing two current-controlled operational transconductance amplifiers (OTA), each having differential inputs and a push-pull output. [1] Linearizing diodes at the input can optionally be used by applying a bias current into I bias to reduce distortion and allow increased input levels.

  9. Fully differential amplifier - Wikipedia

    en.wikipedia.org/wiki/Fully_differential_amplifier

    Limited output power — if high power output is desired, an op-amp specifically designed for that purpose must be used. Most op-amps are designed for low-power operation and are typically only able to drive output resistances down to 2 kΩ. Limited output current — the output current must obviously be finite. In practice, most op-amps are ...

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