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PSIROC 1

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PIN Diodes, Silicon Strips and GEMs Read-Out Chip

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Features

    • Optimized for GEMs, PIN diodes, Silicon strips
    • Number of channels: 64
    • Outputs: 2 outputs per channel (either : 64 LVDS triggers, 2 x 64 TTL triggers, 64 TTL triggers and 64 analog outputs), 2 multiplexed analogue outputs, 3 NOR64 trigger outputs
    • Input Polarity : Positive, Negative
More info
3 Years Warranty
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Overview

Psiroc 1 is a versatile 64-channel front-end ASIC designed for reading out PIN diodes, silicon strips, and GEM detectors, catering to a wide range of detector capacitances from 0 to several hundred pF. It features precise triggering capabilities down to 0.5 fC for detectors with capacitances below 20pF, along with dual-gain energy measurement that ensures an excellent Signal-to-Noise Ratio (SNR over 10 for 0.5 fC) on high gain and extensive dynamic range on low gain. Psiroc also supports channel-wise Time-over-Threshold (ToT) output for signals exceeding a few pC.

This ASIC is highly customizable, offering programmable output of high/low gain shapers, individual triggers, or ToT signals, with two output pins per channel. The preamplifier gain is adjustable from 125 mV/pC to 4 V/pC, accommodating a broad spectrum of signal strengths. Charge measurement is facilitated by peak detectors, which can operate in track & hold mode due to an internal delay cell. Psiroc outputs analog data via two multiplexed outputs for external ADC read-out, with shapers’ shaping time tunable from 20 ns to 3 µs.

Additionally, Psiroc allows for precise channel-by-channel calibration of trigger thresholds for time trigger and ToT, utilizing individual 6-bit DACs. This feature, along with ASIC-wide or channel-wise data acquisition options, makes Psiroc a highly adaptable solution for a variety of detection and measurement applications.

Technical Specifications

Detector Read-Out

PIN Diodes, Silicon strips, GEMs

Number of Channel

64

Signal Polarity

Positive, negative

Sensitivity

Trigger on 0.5 fC on both polarity

Timing Resolution

< 150 ps RMS @ Qin = 4 fC ; Cd/Cf = 20p/1p (pa gain = 1 V/pC)

Dynamic Range

Up to 5 pC with low gain charge measurement and up to 100 pC with ToT

Packaging & Dimension

FC-BGA 516 20x20mm (Low-inductance flip chip)

Power Consumption

350 mW – Supply voltage : 1.2 V

Inputs

64 analogue inputs

Outputs
  • 2 outputs per channel, either :
    • 64 LVDS triggers
    • 2 x 64 TTL triggers
    • 64 TTL triggers and 64 analog outputs
  • 2 multiplexed analogue outputs
  • 3 NOR64 trigger outputs
Internal Programmable Features
  • 3 trigger threshold tuning (10bits)
  • channel-by-channel gain and shaping time adjustment (τ = 20 ns to 3 µs)
  • individual trigger masking and cell powering.
Evaluation systems
  • Evaluation board
  • Psiroc + PicoTDC evaluation system

Compare

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Code Description
WWPSIROC1BAA PSIROC 1 - PIN Diodes, Silicon Strips amnd GEMs Read-Out Chip   RoHS

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