A Iogarithmic amplifier is a type of amplifier- an electronic device that increases the amount of electrical signals. It converts an input current into an output voltage (a flow of electrical current). Typically, the source of this current is a photodiode.
Why are logarithmic amplifiers used?
Logarithmic amplifiers are not only used to create voltage, they're also used to regulate gain (the ratio of two quantities). In the case of a logarithmic amplifier, this is the measurement of the output of a circuit or component in relation to its input.
By using a logarithmic amplifier you can also compress the range of signals in an electronic system because they provide an effective means of dealing with wide dynamic range signals. For example, a system with wide dynamic range may have poor signal-to-noise.
Where are logarithmic amplifiers used?
Logarithmic amplifiers are commonly used in high-speed electronic circuits. Because of their ability to compress signals, they remain a key component in many video, fibre, medical (blood analysis equipment), scientific (material analysers) and wireless systems.
Description:
The SFH series of plastic fibre devices, from
Avago Technologies, consists of transmitters and receivers for optical data transmission with POF. Items available within the series include LED transmitter and photodiodes, phototransistors and integrated solutions (TTL-compatible) as receiver. The V-version ...
Description:
The SFH series of plastic fibre devices, from
Avago Technologies, consists of transmitters and receivers for optical data transmission with POF. Items available within the series include LED transmitter and photodiodes, phototransistors and integrated solutions (TTL-compatible) as receiver. The V-version ...
Description:
The HFBR-x5xx series, from Avago Technologies, are full
metal fibre optic transmitters and receivers ideal for SERCOS (Serial Real-time Communications System) applications. The transmitter and receiver devices are designed for use with 1mm plastic optical fibre (POF) and 200 μm ...
Description:
The HFBR-x5xxZ family, from Avago Technologies, form a
part of the Versatile Link series. They are fibre optic link components including transmitters, receivers, connectors and cables. The HFBR-x5xxZ series are suitable solutions for problems with voltage isolation and insulation, EMI/RFI ...
