RAIHANFAUZYFERDYANSYAH
1.0 V Sigma-Delta Modulator
Third-order feedforward · 3-bit · GPDK045
Third-order feedforward loop with three DS-SC integrators, 3-bit flash quantization, and resistive DAC feedback.
Three circuit decisions under a tighter supply
A folded-cascode OTA, bootstrapped sampling switch, and resistive common-mode feedback address the 1.0 V headroom constraint. Behavioral evaluation and schematic transient checks cover separate verification domains.
Read the design reasoning78.38 dB
Mean across 20 independent noise realizations · σ 0.23 dB- BEHAVIORAL ENOB
- 12.73 bit
- PARTIAL POWER ESTIMATE
- ≈46 µW
The behavioral model’s DAC scaling is not identified in the paper. Power covers VDD circuitry and passive DAC ladders. Model and power boundaries are detailed in the case study.
Selected work
Circuit characterization, hotspot-risk modeling, and industrial monitoring.
CMOS Schmitt Trigger
Designed an 8T GF180MCU circuit · nominal hysteresis 0.731 V · checked 5 corners × 3 temperatures
Early Warning Karhutla
Model evaluation + dashboard development in a team project · 7-day Riau risk demo · DATATHON 2026 Semifinalist
Industrial Fire-Suppression Monitoring
Built Modbus monitoring logic, MySQL state logging, and Telegram notifications in Node-RED.
Schematics, test results, code, and the scope of each project.
Profile
My biomedical-engineering thesis focused on low-voltage data conversion. Discrete analog and industrial monitoring projects support that work. I am now extending the IC focus through GF180MCU process-temperature characterization.
Universitas Gadjah Mada
B.Eng. Biomedical Engineering · 2026
Engineering Intern
PT Mitra Ekatama Expertech · Dec 2024–Jan 2025
Configured Modbus I/O and built Node-RED monitoring, MySQL logging, and Telegram notifications.
Teaching Assistant · Basic Programming Laboratory
DTETI, Universitas Gadjah Mada · 2026
Guided C/C++ programming and debugging labs.
Low-voltage design and characterization
RD-001 connects circuit decisions to simulation evidence. The Schmitt trigger adds process-temperature characterization at a fixed supply.
EMMA Smart Composting
Best Impact · Capstone DTETI UGM 2025
System prototyping and an offline Decision Tree proof of concept.
Contact
Open to analog and mixed-signal IC design roles, with supporting experience in embedded prototypes and industrial monitoring.