High-bandwidth-peak-detector


Posted on Mar 1, 2013

The high-speed peak detector uses a highly accurate, fast s/h amplifier controlled by a highspeed comparator. The s/h amplifier holds the peak voltage, until the comparator switches the amp to its sample mode, to capture a new, higher voltage level. The circuit handles all common-wave shapes and exhibits 5% accuracy from 50 Hz to 2 MHz. The comparator`s output decreases when the input signal exceeds the value of the currently held output.


High-bandwidth-peak-detector
Click here to download the full size of the above Circuit.

This transition puts the s/h amplifier into sample mode. Once the output reaches the value of the input, or the input signal falls below the output"s level, the comparator"s output increases; the high output brings the s/h amplifier back to the hold mode, thereby holding the peak value of the input signal. Reset the circuit by lowering the value of pin 4 of the NE522 comparator, which in tum allows the NE5060 s/h amplifier to acquire the input. The NE522 comparator has an open-collector output.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Power-consumption-limiter
Bugging Countermeasure
Reliable 6 Watt Hi Fi Audio Amplifier Using TDA2613
Compensation Resistor Stabilizes SMPS at High Duty Cycles
arduino Selecting the right relay
Keyboard Interfacing to 8051
Alarms and security related schematics
Speech amplifier circuit
Homebrew Fan Speed Controller
Simple Stereo VU Meter
SPDIF audio DAC with CS8416 and TDA1543



Top