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Twilight Technology 2252 - RMS Level Detector IC
https://ttsemiconductor.com/main.asp?uri=1003&di=199
The TT Semiconductor 2252 integrated-circuit rms level detector is designed to convert an AC input current into a DC output voltage. The output is proportional to the log of the true rms value of the input signal. The parts are housed in a space-efficient plastic 8-pin single-in-line (SIP) package, and require minimal support circuitry.
RMS-Level Detector ICs - THAT Corporation Audio Technology
http://thatcorp.com/2252_RMS-Level_Detector_IC.shtml
DESCRIPTION. The THAT 2252 integrated-circuit rms level detector is designed to convert an AC input current into a DC output voltage. The output is proportional to the log of the true rms value of the input signal. Fabricated in a super low-noise process, the 2252 combines wide dynamic range with frequency response to beyond 20 kHz.
AN012 - Peak, RMS and averaging circuits
https://sound-au.com/appnotes/an012.htm
As with a peak measurement, the RMS value for a sinewave is obtained simply by scaling the rectified voltage, and in this case a meter would be adjusted to read 707mV with an input of 637mV. The average value of a sinewave is determined by ... 2 × V (peak) / π = 0.6366 (0.637) for a 1V peak sinewave (707mV RMS)
True RMS Detector - Texas Instruments
https://www.ti.com/lit/an/snoa855/snoa855.pdf
True RMS Detector Introduction The op amp precision rectifier circuits have greatly eased the problems of AC to DC conversion. It is possible to measure millivolt AC signal with a DC meter with better than 1% accuracy. Inaccuracy due to diode turn-on and nonlinearity is eliminated, and precise rectification of low level signals is obtained.
THAT Corporation IC RMS-Level Detector
http://thatcorp.com/datashts/THAT_2252_Datasheet.pdf
The THAT 2252 RMS-Level Detector is designed for high performance in audio-frequency applica-tions requiring logarithmic output, rms response, and wide dynamic range. The parts compute rms level by rectifying input current signals, converting the resulting current waveform to a logarithmic voltage, and applying this voltage to a log-domain filter.
average value / RMS / peak detector circuit | Microchip
https://www.microchip.com/forums/m227445.aspx
average value / RMS / peak detector circuit. I'm designing a 4 band programmable audio compressor using 2 MAX261's for filtering, 2 DS1868's and opamps for gain control, a pic18f4620, and an assortment of available quad opamps at +/-15V supply. What I'm trying to do is get an approximation of the level on each channel to go into the pic.
DRV632 DirectPath , 2-VRMS Audio Line Driver With ...
https://www.ti.com/lit/ds/symlink/drv632.pdf
active-mute control for pop-free audio on/off control. The DRV632 has an external undervoltage detector that mutes the output when the power supply is removed, ensuring a pop-free shutdown. Using the DRV632 in audio products can reduce component count considerably compared to traditional methods of generating a 2-VRMS output.
VERSATILE AUDIO AGC CIRCUIT - EYRG.net
http://www.g8ajn.eyrg.net/mediafire/AGC2014ArticleFull.pdf
audio and microphone signal conditioning system on a single integrated circuit. It provides amplification, RMS detection, limiting, variable compression, and downward expansion. An integral voltage-controlled amplifier (VCA) provides up to 60 dB of gain in the signal path with approximately 30 kHz bandwidth.
RMS to DC Converters | Analog Devices
https://www.analog.com/en/products/analog-functions/rms-to-dc-converters.html
RMS-to-DC converters manufactured by Analog Devices are used in a wide variety of applications where precision and low power measurement of ac signals is the prime objective. An ADI rms-to-dc converter offers real time measurements, meaning there are no latency issues such as those that limit the frequency response of other technologies—the dc output is simply the equivalent …
True RMS-to-DC Measurements, From Low Frequencies …
https://www.analog.com/en/analog-dialogue/articles/true-rms-to-dc-measurements-to-2-5-ghz.html
The AD8361 is a root-mean-square (rms)-responding true-power-detector analog IC for use in high-frequency receiver and transmitter signal chains. Computing the rms value of simple and complex waveforms containing frequencies up to 2.5 GHz, it is particularly useful for measuring the rms level of high-crest-factor (peak-to-rms-ratio) signals, such as occur in systems …
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