MAXIM MAX44251AUA+T

The MAX44250/MAX44251/MAX44252 are 20V, ultraprecision, 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 2.7V to 20V supply or dual ±1.35V to ±10V supplies and consume only 1.15mA per channel, while providing 5.9nV/√Hz input-referred voltage noise. The ICs are unity-gain stable with a gain-bandwidth product of 10MHz. With excellent specifications such as offset voltage of 6μV (max), drift of 19nV/°C (max), and 123nVP-P noise in 0.1Hz to 10Hz, 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.

• High Accuracy Enables Precision Signal Chain Acquisition
• 6μV Input Offset Voltage (max) at Room Temperature
• TC VOS of 19nV/°C (max)
• Low 5.9nV/√Hz Input-Referred Voltage Noise
• 123nVP-P in 0.1Hz to 10Hz
• 10MHz Gain-Bandwidth Product
• Rail-to-Rail Output
• Fast 400ns Settling Time
• 2.7V to 20V Power-Supply Range Supports Wide Range of Sensors
• Integrated EMI Filter Reduces Impact of Radio Frequency Interference on Signal Chain Performance

• Strain Gauges
• Pressure Transducers
• Medical Instrumentation
• Precision Instrumentation
• Load Cell and Bridge Transducer Amplification