The MAX4104/4105/4304/4305 series is a high-performance, low-noise, low-distortion SOT23 package op amp.
The MAX4104/MAX4105/MAX4304/MAX4305 family provides ultra‑high‑speed, low‑noise, low‑distortion amplification for video, ADC, and telecom applications. Each device is offered in a miniature 5‑pin SOT‑23 package and is optimized for specific minimum closed‑loop gains (+1V/V, +2V/V, +5V/V, +10V/V).
Key electrical characteristics include bandwidths from 340 MHz to 740 MHz, slew rates up to 1400 V/µs, input voltage noise density of 2.1 nV/√Hz, and output current drive of ±70 mA. Proper PCB layout and power‑supply bypassing are critical for high‑frequency performance, with recommendations to avoid wire‑wrapped boards, keep traces short, and use surface‑mount bypass capacitors.
| Slew Rate (MAX4105/4305) | 1400 V/µs |
|---|---|
| Input Voltage Noise Density | 2.1 nV/√Hz |
| Output Current Drive | ±70 mA |
| Operating Temperature Range | -40 °C to +85 °C |
They can source or sink up to ±70 mA of output current.
The input voltage noise density is 2.1 nV/√Hz.
Avoid wire‑wrapped or breadboard constructions, keep signal traces short and straight, use surface‑mount components, and place 1 nF and 0.1 µF bypass capacitors close to each supply pin.