16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-164
Paper 13093-164

The VERITAS 2.3 readout ASIC for the ATHENA wide field imager

On demand | Presented live 17 June 2024

Abstract

VERITAS 2.3 is a further step in the development of the VERITAS (VErsatile Readout based on Integrated Trapezoidal Analog Shapers) ReadOut Integrated Circuit (ROIC) architecture designed for high-speed, lownoise readout of the DEPFET detectors in the Wide Field Imager on ESA’s ATHENA X-ray satellite. The chip includes 64 channels, delivering a short processing time of 2.5 μs per readout while targeting a system noise of 3 e ENC RMS, enabling nearly Fano-limited spectroscopic performance. While the new chip still uses previous versions’ proven 0.35 μm CMOS technology node, we have employed new foundry and process options for better manufacturability and improved reliability. An overview of the design and development of VERITAS 2.3 is presented, along with the first standalone functionality and performance measurements conducted using a dedicated ASIC test setup.

Presenter

Anna-Katharina Schweingruber
Max-Planck-Institut für extraterrestrische Physik (Germany)
Presenter/Author
Anna-Katharina Schweingruber
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Sven C. Herrmann
Kavli Institute for Particle Astrophysics & Cosmology (United States)
Author
Kavli Institute for Particle Astrophysics & Cosmology (United States)
Author
Ajay Kumar Dakshinamurthy
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Astrid Mayr
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Johannes Müller-Seidlitz
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Sebastian Albrecht
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Max-Planck-Institut für extraterrestrische Physik (Germany)
Author
Steven W. Allen
Kavli Institute for Particle Astrophysics & Cosmology (United States), Stanford Univ. (United States)
Author
Glenn Morris
Kavli Institute for Particle Astrophysics & Cosmology (United States)