Optimizing Time Resolution Electronics for DMAPs.

Area of Science:

• High-energy physics instrumentation
• Semiconductor detector technology

Background:

• Depleted Monolithic Active Pixel Sensors (DMAPSs) offer cost-effective solutions for particle physics experiments.
• Existing DMAPS timing electronics face limitations in time resolution due to area and power constraints.

Purpose of the Study:

• To develop an optimized timing electronics design for DMAPSs.
• To improve time resolution while maintaining low power and area.

Main Methods:

• A novel methodology leveraging the analog front-end (AFE) output pulse shape was employed.
• Design of a power and area efficient time-to-digital converter (TDC)-based timing circuit.
• Implementation compatibility with the RD50-MPW3 solution was ensured.

Main Results:

• Achieved a time resolution of 2.08 ns across a broad energy range (1000 e- to 20,000 e-).
• The proposed design minimizes area usage.
• Demonstrated zero quiescent in-pixel power consumption.

Conclusions:

• The optimized timing electronics design successfully addresses the time resolution limitations of DMAPSs.
• This solution is suitable for power and area-constrained high-energy physics experiments.
• The methodology provides a pathway for efficient timing circuit design in pixel detectors.