LOG114 is a new logarithmic amplifier. Free Technical Library News

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LOG114 - new logarithmic amplifier

29.07.2007

Texas Instruments has introduced a new precision high-speed (1µs transient) logarithmic amplifier that produces an output voltage or current as the natural or decimal logarithm of the input voltage or current.

LOG114 has a dynamic range of 8 decades and implements the logarithm function without the use of external components. The LOG114 is specifically designed to amplify the photodiode output of fiber optic cables in communication systems. The LOG114 can also be used for optical density measurements in medical and industrial applications.

The QFN-16 package allows the amplifier to be used in compact plug-in modules and multi-channel systems. High speed and wide dynamic range (27 bit equivalent; 100 pA to 10 mA input) with high accuracy make the LOG 114 suitable for laser control applications.

The amplifier has a built-in 2,5 V reference voltage source and two independent operational amplifiers, which allows you to organize offset, amplitude scaling, threshold detection, and some other functions. The LOG114 operates from a single +5V or dual +5V power supply over a temperature range of -5...75°C.

High gain stability over the entire temperature range is ensured by the use of thermal compensation technology.

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Universal wireless sensor node STEVAL-MKSBOX1V1 for the Internet of Things 26.01.2020

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STEVAL-MKSBOX1V1 not only allows you to measure many parameters - temperature, pressure, humidity, position in space, motion and sound, but also perform calculations thanks to the built-in ARM Cortex-M4 microcontroller with DSP and FPU (STM32L4R9) with ultra-low power consumption. To interact with a smartphone, a special ST BLE Sensor application is provided.

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Ready to work "out of the box";
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