{'fraction_non_alphanumeric': 0.017241379310344827, 'fraction_numerical': 0.006269592476489028, 'mean_word_length': 5.326732673267327, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A CMOS closed loop AMR sensor architecture

A fully analog, closed loop, signal conditioning circuit is presented for the readout of Anisotropic MagnetoResistance magnetic sensors. The architecture is based on a fully differential design, consisting of an instrumentation amplifier with chopping to achieve low output noise, followed by a transconductor. The output current of the transconductor is directly fed back to the sensor, through a dedicated on-chip inductor for magnetic field offsetting purposes, closing this way a negative feedback loop. The proposed design has been implemented and simulated in TSMC 180nm 5 V CMOS process.