64 Channel Sample-and-Hold and Multiplexer Output

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.

Keywords: Space, astrophysics, cosmic rays

Product Features

DetectorsSilicon (Si)
ApplicationImaging, Spectroscopy, Calorimetry
Number of inputs64
Input charge range±200 fC
Shaping time5 µs to 8 μs
Nominal capacitive load50 pF
Equivalent Noise Charge (ENC)98e + 6.5e/pF
OutputsMultiplexed pulse height
Test and calibrationInternal calibration circuit
Power consumption0.29 mW / channel