The first version Buffered Large Analog Bandwidth (BLAB1) ASIC for high luminosity collider and extensive radio neutrino detectors

TL;DR

The paper introduces the BLAB1 ASIC, a high-bandwidth, deep-sampling digitizer inspired by LABRADOR, designed for high luminosity detectors and neutrino observatories, with promising test results and future development plans.

Contribution

It presents the design and testing of the first version of the BLAB1 ASIC, offering significantly increased sampling depth over LABRADOR for particle and neutrino detection.

Findings

65k deep sampling at multi-GSa/s achieved

Successful test results demonstrate high bandwidth and depth

Provides a foundation for future high-performance digitizers

Abstract

Future detectors for high luminosity particle identification and ultra high energy neutrino observation would benefit from a digitizer capable of recording sensor elements with high analog bandwidth and large record depth, in a cost-effective, compact and low-power way. A first version of the Buffered Large Analog Bandwidth (BLAB1) ASIC has been designed based upon the lessons learned from the development of the Large Analog Bandwidth Recorder and Digitizer with Ordered Readout (LABRADOR) ASIC. While this LABRADOR ASIC has been very successful and forms the basis of a generation of new, large-scale radio neutrino detectors, its limited sampling depth is a major drawback. A prototype has been designed and fabricated with 65k deep sampling at multi-GSa/s operation. We present test results and directions for future evolution of this sampling technique.