The MAX4430/MAX4431 single and MAX4432/MAX4433 dual operational amplifiers feature wide bandwidth, 16-bit settling times in 37ns, and low-noise/low-distortion operation. The MAX4430/MAX4432 are compensated for unity gain stability and have a small signal -3dB bandwidth of 180MHz. The MAX4431/MAX4433 are compensated for closed-loop gains of +2 or greater and have a small-signal -3dB bandwidth of 215MHz. The MAX4430–MAX4433 op amps require only 11mA of supply current per amplifier while achieving 125dB open-loop gain. Voltage noise density is a low 2.8nV/√Hz, and provides 100dB spurious-free dynamic range (SFDR) at 1MHz. These characteristics make these op amps ideal for driving modern high-speed 14- and 16-bit analog-to-digital converters (ADCs). These high-speed op amps feature wide output voltage swings capable of driving ADCs with ≥4V input dynamic range and a high current output drive up to 60mA. Using a voltage feedback architecture, the MAX4430– MAX4433 meet the requirements of many applications that previously depended on current feedback amplifiers. The MAX4430/MAX4431 are available in a space-saving 5-pin SOT23 package, and the MAX4432/MAX4433 are available in an 8-pin µMAX package.
The MAX4430–MAX4433 family are dual‑supply operational amplifiers with wide bandwidth, ultra‑low distortion and high‑speed performance. They are available in a space‑saving 5‑pin SOT23 package (MAX4430/4431) and an 8‑pin µMAX package (MAX4432/4433).
Key specifications include 180 MHz (single‑ended) or 215 MHz (differential) small‑signal bandwidth, 37 ns 16‑bit settling time, 125 dB open‑loop gain, 2.8 nV/√Hz input voltage noise density, 60 mA output drive, and a 145 V/µs slew rate. The devices operate from –40 °C to +85 °C and draw 11 mA quiescent current per amplifier.
| Small‑signal bandwidth (differential) | 215 MHz |
|---|---|
| 16‑bit settling time | 37 ns |
| Open‑loop gain | 125 dB |
| Input voltage noise density | 2.8 nV/√Hz |
| Maximum output drive current | 60 mA |
| Slew rate | 145 V/µs |
| Supply voltage range | ±12 V |
| Operating temperature range | -40 °C to +85 °C |
The devices can be powered with up to +12 V between VCC and VEE.
The typical input voltage noise density is 2.8 nV/√Hz.
The MAX4431 has a small‑signal bandwidth of 215 MHz.