Micro‑Power, Micro‑Footprint, Super‑Stable
Renesas delivers industry-leading voltage reference (Vref) circuits engineered for precision and reliability, ensuring stable reference voltages across demanding environments regardless of temperature, input voltage, or time. Leveraging advanced Floating Gate Array™ (FGA™) and Band-Gap technologies, we offer a versatile portfolio where FGA technology departs from traditional silicon junction designs to provide game-changing accuracy and exceptional stability by storing a precise charge on a floating gate cell—unaffected by environmental fluctuations.
Unparalleled Accuracy
Ensures precise reference voltages for even the most sensitive applications.
Exceptional Stability
Maintains performance with no impact from temperature changes, input differences, or time.
Power Efficiency
Achieves top-tier performance with the lowest power consumption in the industry.
Small Footprint
Improve system performance while minimizing board space used.
Product Portfolio
Compare All ProductsWe provide a broad selection of voltage references engineered to support diverse accuracy, noise, and power requirements, enabling designers to quickly identify devices that match their system goals.
Get Started With Your Power Design
Our collection of software and hardware tools highlights the RA Family’s technical capabilities while seamlessly guiding you from evaluation to production.
Quickly find parts, configure multi-rail setups, analyze systems, and create custom reference designs with this exclusive and offline-accessible web app.
An overview of how X‑ray exposure affects Renesas floating‑gate analog (FGA) voltage references, explaining the underlying floating‑gate storage mechanism, its sensitivity to ionizing radiation, and the conditions under which X‑ray doses—such as those from PCB inspection or baggage scanners—can induce output‑voltage shifts despite long‑term stability under normal background radiation.
An overview of how reflow soldering and PCB assembly processes influence the stability of Renesas floating‑gate analog (FGA) voltage references, highlighting the thermal hysteresis effects introduced by temperature cycling, the resulting permanent but stabilizing voltage shifts, and the role of package and board‑mounting conditions in managing long‑term drift.
An overview of voltage reference fundamentals, comparing major architectures—bandgap, XFET™, buried Zener, and floating‑gate—and outlining key performance parameters such as accuracy, temperature coefficient, noise, and long‑term stability for precision analog and data‑conversion applications.
An overview of bypass‑capacitor selection and use, covering the motivation for bypassing, key capacitor behaviors (equivalent circuit, dielectric types), and how circuit demands—such as large current spikes or high‑frequency operation—affect sizing, placement, and capacitor choice. The note also highlights layout considerations and illustrates best‑practice techniques through application examples spanning low‑ and high‑current, as well as low‑ and high‑frequency, designs.
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