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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Beskrivning Pris 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-artikelnummer 100-3852
Tillv. art.nrLOG104AID
VarumärkeTexas Instruments
118,575 kr
Each (In a Tube of 75)
Enheter
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-artikelnummer 145-1267
Tillv. art.nrAD606JNZ
VarumärkeAnalog Devices
512,312 kr
Each (In a Tube of 25)
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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
RS-artikelnummer 523-7853
Tillv. art.nrAD8313ARMZ
VarumärkeAnalog Devices
177,33 kr
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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-artikelnummer 100-3853
Tillv. art.nrLOG112AID
VarumärkeTexas Instruments
134,654 kr
Each (In a Tube of 50)
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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-artikelnummer 912-8882
Tillv. art.nrAD8304ARUZ
VarumärkeAnalog Devices
184,954 kr
Each (In a Tube of 96)
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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-artikelnummer 523-8137
Tillv. art.nrAD8310ARMZ
VarumärkeAnalog Devices
89,65 kr
Each
Enheter
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-artikelnummer 461-8318
Tillv. art.nrLOG112AID
VarumärkeTexas Instruments
161,61 kr
Each
Enheter
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-artikelnummer 160-9966
Tillv. art.nrAD8318ACPZ
VarumärkeAnalog Devices
94,177 kr
Each (On a Reel of 250)
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Single 5 V - - 0.001MΩ - - Surface Mount LFCSP VQ 16 4 x 4 x 0.83mm 0.83mm 4mm +85 °C
RS-artikelnummer 523-7724
Tillv. art.nrAD8309ARUZ
VarumärkeAnalog Devices
157,69 kr
Each
Enheter
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-artikelnummer 497-1316
Tillv. art.nrAD8304ARUZ
VarumärkeAnalog Devices
207,94 kr
Each
Enheter
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-artikelnummer 121-9042
Tillv. art.nrLOG101AID
VarumärkeTexas Instruments
126,319 kr
Each (In a Tube of 75)
Enheter
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-artikelnummer 912-7472
Tillv. art.nrAD8313ARMZ
VarumärkeAnalog Devices
157,846 kr
Each (In a Tube of 50)
Enheter
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-artikelnummer 523-7847
Tillv. art.nrAD8307ARZ
VarumärkeAnalog Devices
120,05 kr
Each
Enheter
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-artikelnummer 168-4174
Tillv. art.nrAD8307ARZ-RL7
VarumärkeAnalog Devices
88,475 kr
Each (On a Reel of 750)
Enheter
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-artikelnummer 108-303
Tillv. art.nrAD8318ACPZ
VarumärkeAnalog Devices
134,21 kr
Each
Enheter
Single 5 V - - 0.001MΩ - - Surface Mount LFCSP VQ 16 4 x 4 x 0.83mm 0.83mm 4mm +85 °C
RS-artikelnummer 111-1182
Tillv. art.nrAD8307ARZ
VarumärkeAnalog Devices
98,647 kr
Each (In a Tube of 98)
Enheter
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-artikelnummer 709-6049
Tillv. art.nrAD606JNZ
VarumärkeAnalog Devices
527,55 kr
Each
Enheter
Single 5 V - - 0.003MΩ - Differential Through Hole PDIP 16 20.07 x 6.35 x 3.3mm 3.3mm 20.07mm +70 °C
RS-artikelnummer 162-7761
Tillv. art.nrLOG114AIRGVT
VarumärkeTexas Instruments
65,793 kr
Each (On a Reel of 250)
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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-artikelnummer 709-5389
Tillv. art.nrAD8307ANZ
VarumärkeAnalog Devices
114,98 kr
Each
Enheter
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-artikelnummer 461-8302
Tillv. art.nrLOG104AID
VarumärkeTexas Instruments
142,28 kr
Each
Enheter
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
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