Response of Preamp to signal in Electrons Mode
VSHA~2.4
Signal Amplitude
Programmable Reset Delay
VSHA~2.4
Signal Amplitude
Figure 6: Shaper Electrons Mode Transient Response
The bottom trace shows the response with a channel reset occurring while the signal is still active.
The response to holes is shown in figure 7.
Response of Preamp to signal in Holes Mode
Signal Amplitude
VSHA~0.6
Signal Amplitude
VSHA~0.6
Programmable Reset Delay
Figure 7: Shaper Holes Mode Transient Response
A summary of the specification is shown below:
 Signal polarity – either electrons or holes.
 Peaking time programmable 500ns-8us, 4 bits.
8