MAX44250, MAX44251, MAX44252

MAX44250, MAX44251, MAX44252

Maxim's MAX44250/MAX44251/MAX44252 are 20 V, ultra-precision, low-noise, low-drift amplifiers that offer near-zero DC offset and drift through the use of patented auto-correlating zeroing techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. These single, dual, and quad devices feature rail-to-rail outputs, operate from a single 2.7 V to 20 V supply, and consume only 1.15 mA per channel, while providing 5.9 nV/ input-referred voltage noise. The ICs are unity-gain stable with a gain-bandwidth product of 10 MHz. With excellent specifications such as offset voltage of 6 µV (max), drift of 19 nV√Hz (max), and 123 nVP-P noise in 0.1 Hz to 10 Hz, the ICs are ideally suited for applications requiring ultra-low noise and DC precision such as interfacing with pressure sensors, strain gauges, precision weight scales, and medical instrumentation. The ICs are available in 5-pin SOT23, 8-pin SOT23, 8-pin µMAX®, and 14-pin SO packages and are rated over the -40°C to +125°C temperature range.

Features
  • 2.7 V to 20 V power-supply range
  • Integrated EMI filter
  • 6 µV Input offset voltage (max) at room temperature
  • TCVOS of 19 nV√Hz (max)
  • Low 5.9 nV/ input-referred voltage noise
  • 123 nVP-P in 0.1 Hz to 10 Hz
  • Fast 400 ns settling time
  • 10 MHz Gain-bandwidth product
  • Rail-to-rail output
  • High accuracy enables precision signal chain acquisition
Applications
  • Load cell and bridge transducer amplification
  • Medical instrumentation
  • Precision instrumentation
  • Pressure transducers
  • Strain gauges

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