Logarithmic Amplifiers

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.


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Omschrijving Prijs Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Maximum Input Offset Voltage Maximum Input Resistance Rail to Rail Output Type Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Temperature
RS-stocknr. 523-7724
FabrikantnummerAD8309ARUZ
FabrikantAnalog Devices
14,31 €
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Single 3 V, 5 V - - 0.001MΩ Rail to Rail Output Differential Surface Mount TSSOP 16 5 x 4.4 x 1 mm, 5 x 4.4 x 1.05 mm 1.05mm 5mm +85 °C
RS-stocknr. 523-8137
FabrikantnummerAD8310ARMZ
FabrikantAnalog Devices
9,27 €
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Aantal stuks
Single 3 V, 5 V - 1.5mV 0.001MΩ Rail to Rail Input - Surface Mount MSOP 8 3 x 3 x 0.85mm 0.85mm 3mm +85 °C
RS-stocknr. 709-5389
FabrikantnummerAD8307ANZ
FabrikantAnalog Devices
10,78 €
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Single 3 V, 5 V - 0.5mV 0.001MΩ Rail to Rail Output Rail to Rail Through Hole PDIP 8 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm +85 °C
RS-stocknr. 523-7847
FabrikantnummerAD8307ARZ
FabrikantAnalog Devices
11,70 €
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Single 3 V, 5 V - 0.5mV 0.001MΩ Rail to Rail Output Rail to Rail Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS-stocknr. 168-4174
FabrikantnummerAD8307ARZ-RL7
FabrikantAnalog Devices
9,001 €
Each (On a Reel of 750)
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Single 2.7 → 5.5 V - 500µV 1.1kΩ Rail to Rail Output Rail to Rail Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS-stocknr. 523-7853
FabrikantnummerAD8313ARMZ
FabrikantAnalog Devices
17,97 €
Each
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Single 3 V, 5 V - - 0.001MΩ Rail to Rail Output Rail to Rail Surface Mount MSOP 8 3 x 3 x 0.85mm 0.85mm 3mm +85 °C
RS-stocknr. 497-1316
FabrikantnummerAD8304ARUZ
FabrikantAnalog Devices
20,38 €
Each
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Single 5 V - 20mV 35MΩ Rail to Rail Output Rail to Rail Surface Mount TSSOP 14 5 x 4.4 x 1mm 1mm 5mm +85 °C
RS-stocknr. 759-1304
FabrikantnummerAD8307ARZ-RL7
FabrikantAnalog Devices
11,70 €
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Single 2.7 → 5.5 V - 500µV 1.1kΩ Rail to Rail Output Rail to Rail Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS-stocknr. 709-6049
FabrikantnummerAD606JNZ
FabrikantAnalog Devices
61,53 €
Each
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Single 5 V - - 0.003MΩ - Differential Through Hole PDIP 16 20.07 x 6.35 x 3.3mm 3.3mm 20.07mm +70 °C