An integral microcircuit (IC) for processing of photosignals of a ring laser, which is a sensitive element of a unit of laser gyroscopes, is created on an ABMK-1.3 analog array. The IC contains the current-to-voltage converter, a low-pass filter (LPF), and bandpass filter (BPF). The input current-output voltage conversion coefficient (K IU ) and transmission band at a level of −3 dB (Δf −3 dB) LPF and BPF are controlled by varying ratings of external RC elements. Type LPF parameters K IU = 0.2 V/μA and Δf −3 dB = 0–15 Hz, and those of the BPF K IU = 1.2 V/μA and Δf −3 dB = 15 Hz-1.6 MHz. Circuit designs of separate cascades of the microcircuit and experimental characteristics are presented.
Russian Microelectronics – Springer Journals
Published: May 7, 2015
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