Programmable Schmitt Triggers Are Digitally Controlled

Wojslaw, Chuck
March 2002
Electronic Design;3/18/2002, Vol. 50 Issue 6, p74
Trade Publication
Describes the applications of programmable Schmitt trigger or a comparator with hysteresis. Hysteresis characteristics; Use of a digitally programmable potentiometer; Transfer characteristics of the electronic circuit.


Related Articles

  • Advancement of CMOS Schmitt Trigger Circuits. Kader, Wassan M.; Rashid, Haroon; Mamun, Md.; Sobhan Bhuiyan, Mohammad Arif // Modern Applied Science;Dec2012, Vol. 6 Issue 12, p51 

    Schmitt triggers are electronic comparators that are widely used to enhance the immunity of circuits to noise and disturbances and are inherent components of various emerging applications. Conventional Schmitt triggers, composed of operational amplifiers, suffer from some inevitable drawbacks...

  • Trigger circuit locks onto one horizontal line. Nachazel, Richard J.; Swager, Anne Watson // EDN;9/02/96, Vol. 41 Issue 18, p96 

    Describes the electronic circuit that can produce oscilloscope trigger which synchronizes the horizontal sweep to a video signal. Incorporation of a scan counter that can be use as a video gate for the display of a specific number of video lines; Use of a monostable vibrator to establish the...

  • Video monitor adapter enhances oscilloscope. Sward, Wayne // Electronic Design;08/18/97, Vol. 45 Issue 17, p117 

    Presents information on a trigger circuit which monitors a composite video signal and provides stable sync pulses for the external trigger of an oscilloscope. Type of intensity pulse provided by the circuit for the oscilloscope; What this allows; Usefulness of this feature; Other features of...

  • True constant fraction trigger circuit for picosecond photon-timing with ultrafast microchannel... Ghioni, M.; Cova, S.; Samori, C.; Zappa, F. // Review of Scientific Instruments;May97, Vol. 68 Issue 5, p2228 

    Describes a true constant fraction trigger circuit for picosecond photon-timing with ultrafast microchannel plate photomultipliers. Operation principle of the circuit; Instrument structure and key features; Circuit description; Reduction of residual amplitude dependent time walk.

  • Autostochastic ring system of triggers connected through integrating circuits. Kal’yanov, É. V. // Technical Physics Letters;May99, Vol. 25 Issue 5, p359 

    A ring system of triggers connected to one another by integrating circuits is studied. Equations for a multiple-trigger ring systems are given, and the results of a numerical analysis for a system containing three triggers are presented. It is shown that chaotic oscillations with switching...

  • Signal INTEGRITY, At a 'Glance' Porter, Art // Printed Circuit Design & Manufacture;May2003, Vol. 20 Issue 5, p22 

    Focuses on the usability of eye diagrams in identifying single-net faults. Measurement of the trigger jitters; Accuracy in measuring the jitters; Functionality of the eye diagrams.

  • An oscilloscope trigger method for capturing elusive events. Gupta, Deepak K.; John, P. I. // Review of Scientific Instruments;Mar2002, Vol. 73 Issue 3, p1329 

    A low cost trigger method, based on the change in slope of the signal, is used to capture infrequent and irregular events from a stream of regular events is described. This procedure is used to separate the modified corona current pulses, which arise due to dust interaction with corona...

  • Constant-fraction circuits for picosecond photon timing with microchannel plate photomultipliers. Cova, S.; Ghioni, M.; Zappa, F.; Lacaita, A. // Review of Scientific Instruments;Jan1993, Vol. 64 Issue 1, p118 

    Since single-photon pulses of photomultiplier tubes (PMTs) have statistically fluctuating amplitude, constant-fraction trigger circuits (CFTs) are normally employed for accurate timing. However, with the subnanosecond signals of microchannel-plate types (MCPs) nonideal CFT behavior is observed....

  • The D0 Level 2 Trigger. Linnemann, James T. // International Journal of Modern Physics A: Particles & Fields; G;9/10/2001 Supplement C, Vol. 16, p1166 

    The DO Level 2 trigger (L2), a subsystem of the three-stage DO trigger, reduces event rates from 10 KHz to 1 KHz. The system is organized as a global processor and preprocessors for the calorimeter, muon, tracker, and preshower subsystems. Preprocessors digest information from a single detector...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics