The MAX9021/MAX9022/MAX9024 is a low-power comparator that operates from a single supply from 2.5V to 5.5V, and consumes 2.8µA of supply current per comparator. It has a 3µs propagation delay and 4mV of built-in hysteresis to provide noise immunity and prevent oscillations.
The MAX9021, MAX9022 and MAX9024 are micropower, ultra‑small comparators offered in single, dual and quad configurations. They operate from a single 2.5 V to 5.5 V supply (or dual supplies) and consume only 2.8 µA per comparator, making them ideal for battery‑powered portable systems.
The document provides electrical characteristics, absolute maximum ratings, pin descriptions, typical application circuits, and layout recommendations. Package options include 5‑pin SC70, 8‑pin SOT23/uMAX, and 14‑pin TSSOP, with detailed mechanical drawings and ordering information.
| Supply voltage range (single‑supply) | 2.5 V to 5.5 V |
|---|---|
| Propagation delay (typical) | 3 µs |
| Built‑in hysteresis | 4 mV |
| Output swing | Rail‑to‑rail |
| Operating temperature range | -40 °C to +125 °C |
The typical propagation delay is 3 µs.
They include 4 mV of internal hysteresis.
They operate from 2.5 V to 5.5 V on a single supply (or from +1.25 V to +2.75 V on dual supplies).