IDE3380 SIPHRA

The IDE3380 is an integrated circuit (IC) for the readout of photon detectors, such as photomultiplier tubes (PMTs), silicon photomultipliers (SiPMs), and multi-pixel photon counters (MPPCs).

The IC has 16 input channels and one summing channel. Each channel can be used for pulse-height spectroscopy and timing. The summing channel is important for the readout of detector arrays with monolithic scintillators. The programmable shaping time of 200 ns, 400 ns, 800 ns, or 1600 ns allows for pulse-height spectroscopy using various scintillators. The current-mode input stage (CMIS) is designed for large negative charge (-16 nC, -8 nC, -4 nC, -0.4 nC) depending on the programmable attenuation and it accommodates large capacitive load (several nF) and large leakage current (up to –10 μA from dark counts). Alternatively, the CMIS  can  be  bypassed  to allow  for  positive  charge  depending  on programmable  gain (+40 pC, +4 pC, +0.4 pC).

The IC contains one 12-bit analog-to-digital converter (ADC) that allows for digitization of the pulse heights from all channels, including the summing channel at a sampling rate of 50 ksps. Every channel output is available for external use and provides either the pulse height or a digital trigger/timing pulse with fixed width or time-over-threshold. The programmable channel output facilitates many applications, such as external waveform sampling and digitization, pulse height and time spectroscopy, pulse counting, and triggering.