waveform cliping at around 800mv/1v

[jawnuolis]

is there is any easy way to clip +/-13v waveforms at around +/-800mv or +/-1v? I was thinking about symmetrical  zener or tvs diode clipping but there no so small nominal diodes... any suggestions?

[c4757p]

Depending on the properties of the signal, a variant on the precision rectifier is probably a good choice. What kind of signal is this?

[jawnuolis]

its COP coil on plug secondary ignition waveform  and when coil is turned of there is huge spikes from +/- 5v to +/- 13v and more when all useful information stays in up to 800mv region and automotive scopes not very happy about that.....

[langwadt]

 a series resistor to limit current and a set of regular diodes to clamp pos/neg, use set of two diodes to get slightly higher voltage

[jawnuolis]

a series resistor to limit current and a set of regular diodes to clamp pos/neg, use set of two diodes to get slightly higher voltage

do you mean this?

[langwadt]

a series resistor to limit current and a set of regular diodes to clamp pos/neg, use set of two diodes to get slightly higher voltage

do you mean this?

yes, that'll clamp at roughly 0.7V

[jawnuolis]

thanks will try this 

[Marco]

You need a low output impedance for this to work ... if you put this in between an attenuator probe and the oscilloscope input it will not work right.