A compact VLSI dc restorer for multichannel X-gamma ray detectors

We present a compact, fully integrated, low power baseline restorer for radiation detector readout ASICs. The proposed circuit has been designed, simulated, and layed out using a 0.35 um CMOS technology. It features an area occupancy of 90 x 100 um² and a power consumption of 90 uW for 3.3 V power supplies, which makes it suitable for highly packed multichannel detector readouts. In the paper the principle of operation of the circuit as well as the results of the simulations are discussed.