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

Bridge-transducer-amplifier
Audio Mixer based JFET 2N3819
How Discrete Voltage Regulator with Current Limiter Works
220V Touch Switch
Mains Supply Failure Alarm
Goodman Band Imaging Receiver
Ferrofluid Art Display
traffic light
Cat Repeller CircuitRepellentCircuit555 Ultrasonic Circuit
Frequency counter
Home Automation through Cellphone Keying
Tube 3TF7 Current Regulator
Wideband FM Jammer
Spectrum monitor with memory function circuit
Complementary symmetry FET operating principle



Top