The MAX4040-MAX4044 micropower op amps operate from a single +2.4V to +5.5V supply or dual ±1.2V to ±2.75V supplies and have rail-to-rail input and output capabilities. They provide a 90kHz gain-bandwidth product while using only 10µA of supply current per amplifier. These devices are ideal for any portable/battery-powered system.
The MAX4040‑MAX4044 family are micropower operational amplifiers that operate from a single +2.4 V to +5.5 V supply or dual ±1.2 V to ±2.75 V supplies. They feature rail‑to‑rail input and output, a 90 kHz gain‑bandwidth product, and ultra‑low power consumption of 10 µA per amplifier.
These devices are specified for -40 °C to +85 °C operation, can drive loads up to 25 kΩ, and include a low‑power shutdown mode that reduces current to 1 µA per amplifier. The datasheet provides detailed electrical characteristics, pin descriptions, package outlines, and typical performance graphs.
| Supply Voltage Range | 2.4 V to 5.5 V (single) or ±1.2 V to ±2.75 V (dual) |
|---|---|
| Supply Current per Amplifier | 10 µA (typical) |
| Input Offset Voltage | 200 µV (typical) |
| Gain‑Bandwidth Product | 90 kHz |
| Output Voltage Swing | within 10 mV of the rails with 100 kΩ load |
| Operating Temperature Range | -40 °C to +85 °C |
| Input Bias Current | ±2 nA to ±10 nA (typical) |
| Shutdown Mode Current | 1 µA per amplifier |
It operates from a single +2.4 V to +5.5 V supply or dual ±1.2 V to ±2.75 V supplies.
Each amplifier draws about 10 µA of supply current.
In shutdown mode the current drops to roughly 1 µA per amplifier.
The outputs typically swing to within 10 mV of the supply rails when driving a 100 kΩ load.