Products » VATA462


32 CSA (±500 fC), S&H, 10bit ADC per channel, outputs digitized pulse height and trigger

Keywords: ASTRO-H, GRB with BGO

Product Features

DetectorsAvalanche photodiodes (APD) with BGO scintillator
ApplicationImaging, Spectroscopy, Tracking
Number of inputs32
Input charge range±500 fC
Shaping time3 μs (VA), 0.6μs (TA)
Nominal capacitive load30 pF
Equivalent Noise Charge (ENC)325e + 1.2e/pF
Trigger thresholdAdjustable
Trigger outputsCommon trigger output for all channels
OutputsSerial digitized pulse height
Test and calibrationCalibration circuit and ADC test circuit
Power consumption10 mW / channel


  • T.Nakamori, et al., 2011, "Development of X-ray/gamma-ray imaging spectrometers using reach-through APD arrays" AIP Conference Proceedings, 1279, 400-402 (2010),  DOI: 10.1063/1.3509325