Sampling peak detector has shutdown feature


Posted on Oct 11, 2012

You face a serious problem in using a slow ADC with a fast peak detector. The circuit in Figure 1 allows a slow ADC to measure a fast, sampled signal peak. The 100-MHz peak detector for ultrasonic-pulse sampling uses a fast MAX4231 amplifier from Maxim (www.maxim-ic.com). This amplifier has a shutdown feature that facilitates power savings without losing the sampled information. When the circuit samples a peak with a low-TTL-control input, the output of the peak-detector amplifier shuts off, and the output amplifier switches on to measure the output signal.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Continuity Checker
4-Way Logic Probe
Yongnuo YN-460 Flash Remote Power Control
Amplifier Timer
pcb fabrication Feasibility Question and Advice on CAD software
Ardurino Logger
Lamp flasher using LM317
Fogger controller
Tube 3TF7 Current Regulator
Interfacing to 7-Segment Displays
DC motor armature resistance in series to start debugging circuit 2



Top