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 €
Each
Aantal stuks
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. 461-8302
FabrikantnummerLOG104AID
13,32 €
Each
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1.5mV - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm +85 °C
RS-stocknr. 108-303
FabrikantnummerAD8318ACPZ
FabrikantAnalog Devices
11,22 €
Each
Aantal stuks
Single 5 V - - 0.001MΩ - - Surface Mount LFCSP VQ 16 4 x 4 x 0.83mm 0.83mm 4mm +85 °C
RS-stocknr. 497-1316
FabrikantnummerAD8304ARUZ
FabrikantAnalog Devices
20,38 €
Each
Aantal stuks
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. 190-4319
FabrikantnummerMAX4206ETE+
FabrikantMaxim Integrated
4,346 €
Each (In a Tube of 75)
Aantal stuks
Dual, Single 2.7 → 11 V ±2.7 to ±5.5V 5mV - - - Surface Mount TQFN 16 4.1 x 4.1 x 0.75mm 0.75mm 4.1mm +85 °C
RS-stocknr. 523-7853
FabrikantnummerAD8313ARMZ
FabrikantAnalog Devices
17,97 €
Each
Aantal stuks
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. 162-7761
FabrikantnummerLOG114AIRGVT
6,363 €
Each (On a Reel of 250)
Aantal stuks
Dual, Single 5 V ±5V 4V - - Differential Surface Mount VQFN 16 4.15 x 4.15 x 0.95mm 0.95mm 4.15mm +70 °C
RS-stocknr. 190-6350
FabrikantnummerMAX4206ETE+
FabrikantMaxim Integrated
5,18 €
Each (In a Pack of 2)
Aantal stuks
Dual, Single 2.7 → 11 V ±2.7 to ±5.5V 5mV - - - Surface Mount TQFN 16 4.1 x 4.1 x 0.75mm 0.75mm 4.1mm +85 °C
RS-stocknr. 812-2379
FabrikantnummerLOG114AIRGVT
9,76 €
Each
Aantal stuks
Dual, Single 5 V ±5V 4V - - Differential Surface Mount VQFN 16 4.15 x 4.15 x 0.95mm 0.95mm 4.15mm +70 °C
RS-stocknr. 523-8137
FabrikantnummerAD8310ARMZ
FabrikantAnalog Devices
9,00 €
Each
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 €
Each
Aantal stuks
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. 100-3853
FabrikantnummerLOG112AID
13,326 €
Each (In a Tube of 50)
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1mV - - - Surface Mount SOIC 14 8.65 x 3.91 x 1.58mm 1.58mm 8.65mm +85 °C
RS-stocknr. 121-9042
FabrikantnummerLOG101AID
12,217 €
Each (In a Tube of 75)
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1.5mV - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm +75 °C
RS-stocknr. 523-7847
FabrikantnummerAD8307ARZ
FabrikantAnalog Devices
11,36 €
Each
Aantal stuks
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. 160-9966
FabrikantnummerAD8318ACPZ
FabrikantAnalog Devices
9,405 €
Each (On a Reel of 250)
Aantal stuks
Single 5 V - - 0.001MΩ - - Surface Mount LFCSP VQ 16 4 x 4 x 0.83mm 0.83mm 4mm +85 °C
RS-stocknr. 168-4174
FabrikantnummerAD8307ARZ-RL7
FabrikantAnalog Devices
8,10 €
Each (On a Reel of 750)
Aantal stuks
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. 461-8318
FabrikantnummerLOG112AID
15,13 €
Each
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1mV - - - Surface Mount SOIC 14 8.65 x 3.91 x 1.58mm 1.58mm 8.65mm +85 °C
RS-stocknr. 759-1304
FabrikantnummerAD8307ARZ-RL7
FabrikantAnalog Devices
11,36 €
Each
Aantal stuks
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. 100-3852
FabrikantnummerLOG104AID
11,728 €
Each (In a Tube of 75)
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1.5mV - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm +85 °C
RS-stocknr. 660-5418
FabrikantnummerLOG101AID
13,88 €
Each
Aantal stuks
Dual - ±12 V, ±15 V, ±5 V, ±9 V 1.5mV - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm +75 °C