About
The IDE1140 (previously VA140) is a 64 channel low-noise/low power high dynamic range charge sensitive preamplifier-shaper circuit, with simultaneous sample and hold, multiplexed analogue readout, calibration facilities and internally generated biases. High integration time. The pre-amplification stage is optimized for a 50pF detector capacitive load. The ASIC can use an active current compensation by introducing a MOS source/sink at the preamplifier’s input. The IDE1140 is an updated version of the VA64HDR9A ASIC.
Publications
J. Alcaraz, et al., 2015, “The alpha magnetic spectrometer silicon tracker: Performance results with protons and helium nuclei”, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 593, Issue 3, Pages 376–398 (2008)
Product Features
Detectors | Silicon (Si) |
Application | Imaging, Spectroscopy, Calorimetry |
Number of inputs | 64 |
Input charge range | ±200 fC |
Shaping time | 5 µs to 8 μs |
Nominal capacitive load | 50 pF |
Equivalent Noise Charge (ENC) | 98e + 6.5e/pF |
Outputs | Multiplexed pulse height |
Test and calibration | Internal calibration circuit |
Power consumption | 0.29 mW / channel |