Схемы - Усилители - 2

Francis Rodes

The need for conditioning low-level ac signals in the presence of both common-mode noise and differential dc voltage prevails in many applications. In such situations, ac-coupling to instrumentation and difference amplifiers is mandatory to extract ...

Stephen Woodward

Self-powered isolation amplifiers, which need no external isolated power supply, provide versatile and convenient interfaces in many applications that require galvanic isolation of the signal source. Examples of such applications include circuits ...

Marián Štofka

The advent of instrumentation amplifiers with digital gain switching offers obvious advantages, such as board-space saving, higher reliability because of fewer solder joints, and lower total cost. These valuable features stem from the fact that the ...

Enrique Vargas Raúl Gregor Sergio Toral Vicente González

Piezoelectric transducers find use in NDE (nondestructive-evaluation) applications. The PVDF (polyvinylidene-fluoride) transducer has many advantages, including a wide bandwidth and high sensitivity. These transducers require high-voltage and ...

Stephen Woodward

Amplification of sub-picoamp signal currents is always a design challenge, especially when gain adjustment is required that spans multiple decades. A straightforward approach to the design task would normally involve potentiometers and teraohm ...

Marián Štofka

Autozero amplifiers have almost zero drift and input-offset values of 1 to 20 µV. You can compensate for the initial voltage offset of an auto-zero amp in sensitive circuits, such as dc amplifiers and integrators, requiring the processing of ...