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Instrumentation amplifiers are used where great accuracy and stability of the circuit both short- and long-term are required. Although the instrumentation amplifier is usually shown schematically identical to a standard operational amplifier (op-amp), the electronic instrumentation amplifier is almost always internally composed of 3 op-amps ...
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)
High-power op-amp [7] LM101 LM201 LM301 μA709 [2] General-purpose op-amp with external compensation [8] LM107 LM207 LM307 μA709 Yes General-purpose op-amp [9] LM108 LM208 LM308 Yes Precision op-amp [10] LM112 LM212 LM312 Yes Micropower op-amp with external compensation [11] LM118 LM218 LM318 Precision, fast general-purpose op-amp with ...
A non-inverting amplifier is a special case of the differential amplifier in which that circuit's inverting input V 1 is grounded, and non-inverting input V 2 is identified with V in above, with R 1 ≫ R 2. Referring to the circuit immediately above,
The current-feedback operational amplifier (CFOA or CFA) is a type of electronic amplifier whose inverting input is sensitive to current, rather than to voltage as in a conventional voltage-feedback operational amplifier (VFA). The CFA was invented by David Nelson at Comlinear Corporation, and first sold in 1982 as a hybrid amplifier, the CLC103.
A fully differential amplifier (FDA) is a DC-coupled high-gain electronic voltage amplifier with differential inputs and differential outputs. In its ordinary usage, the output of the FDA is controlled by two feedback paths which, because of the amplifier's high gain, almost completely determine the output voltage for any given input.
Log amplifier circuits designed with operational amplifiers (opamps) use the exponential current–voltage relationship of a p–n junction (either from a diode or bipolar junction transistor) as negative feedback to compute the logarithm. Multistage log amplifiers instead cascade multiple simple amplifiers to approximate the logarithm's curve.
The operational amplifier integrator is an electronic integration circuit. Based on the operational amplifier (op-amp), it performs the mathematical operation of integration with respect to time; that is, its output voltage is proportional to the input voltage integrated over time.