MAX44252
20V, Ultra-Precision, Low-Noise Op Amps
Innovative Combination of High Voltage (2.7V to 20V) Capability, Industry's Lowest Noise, and Autozero Precision in a SOT23 Package
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Overview
Features and Benefits
- High Accuracy Enables Precision Signal Chain Acquisition
- 6µV Input Offset Voltage (max) at Room Temperature
- TCVOS of 19nV/°C (max)
- Low 5.9nV/
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
Product Details
The MAX44250/MAX44251/MAX44252 are 20V, ultra-precision, low-noise, low-drift amplifiers that offer nearzero 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/ input-referred voltage noise. The ICs are unity-gain stable with a gain-bandwidth product of 10MHz.
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.
Applications
- Load Cell and Bridge Transducer Amplification
- Medical Instrumentation
- Precision Instrumentation
- Pressure Transducers
- Strain Gauges
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
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UG-5828: Petaluma (MAXREFDES30#) ZedBoard Quick Start Guide4/28/2014PDF1M
Reference Designs (1)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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