The MAX44280 offers a unique combination of high speed, precision, low noise, and low-voltage operation making it ideally suited for a large number of signal processing functions such as filtering and amplification of signals in portable and industrial equipment. The amplifier features an input offset of less than 50FV and a high-gain bandwidth product of 50MHz while maintaining a low 1.8V supply rail. The device is internally compensated for gains of 5V/V or greater. The device’s rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 16-bit SAR ADC drivers. Unlike traditional rail-to-rail input structures, input crossover distortion is absent due to an optimized input stage with an ultra-quiet charge pump. The MAX44280 includes a fast-power-on shutdown mode for further power savings. The MAX44280 operates from a supply range of 1.8V to 5.5V over the -40NC to +125NC temperature range and can operate down to 1.7V over the 0NC to +70NC temperature range. The MAX44280 is available in a small, 6-pin SC70 package and is also available in a 1mm x 1.5mm thin µDFN (ultra-thin LGA) package.
The MAX44280 op‑amp from Maxim Integrated operates from a 1.8 V to 5.5 V supply and is specified for -40 °C to +125 °C. It offers a low input offset (< 50 µV), low input bias current (500 fA typical), and a quiescent current of 750 µA per amplifier, making it suitable for portable and industrial signal‑processing applications.
The device is available in a 6‑pin SC70 package and an ultra‑thin 1.5 mm × 1 mm UDFN (LGA) package. It features a gain‑bandwidth product of 50 MHz, a slew rate of 30 V/µs, and total harmonic distortion below 0.01 % (‑110 dB). A fast‑power‑on shutdown mode reduces supply current to 1 µA for battery‑operated designs.
| Supply Voltage Range | 1.8 V to 5.5 V |
|---|---|
| Operating Temperature Range | -40 °C to +125 °C |
| Input Offset Voltage (max) | 500 µV |
| Quiescent Current per Amplifier | 750 µA |
| Gain‑Bandwidth Product | 50 MHz |
| Total Harmonic Distortion | -110 dB |
The device operates from –40 °C up to +125 °C.
The typical quiescent current is 750 µA per amplifier.
The gain‑bandwidth product is specified at 50 MHz.