The MAX941/MAX942/MAX944 are single/dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350µA per comparator. The input common-mode range of the MAX941/ MAX942/MAX944 extends beyond both power-supply rails. The outputs pull to within 0.4V of either supply rail without external pullup circuitry, making these devices ideal for interface with both CMOS and TTL logic. All input and output pins can tolerate a continuous short- circuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The MAX941 features latch enable and device shutdown. The single MAX941 and dual MAX942 are offered in a tiny µMAX® package. Both the single and dual MAX942 are available in 8-pin DIP and SO packages. The quad MAX944 comes in 14-pin DIP and narrow SO packages.
The MAX941, MAX942 and MAX944 are single‑, dual‑ and quad‑channel high‑speed comparators optimized for 3 V or 5 V systems. They feature rail‑to‑rail input range, low supply current (≈350 µA per comparator) and internal hysteresis for clean switching.
The devices are offered in 8‑pin DIP, 8‑pin SO and 14‑pin DIP/SO packages and include optional latch and shutdown functions (MAX941 only). Typical applications include battery‑powered systems, threshold detectors, line receivers and zero‑crossing detectors.
| Propagation delay (typical) | 80 ns |
|---|---|
| Supply current per comparator | 350 µA |
| Input common‑mode range | Extends beyond both supply rails |
| Output swing | Within 0.4 V of either rail |
| Input offset voltage | 1 mV (typical) |
| Operating temperature range (MAX941) | -40 °C to +125 °C |
The typical propagation delay is 80 ns.
Each comparator draws about 350 µA of supply current.
Only the MAX941 includes an internal latch function.
In shutdown mode the MAX941 supply current drops to less than 60 µA.