The OPA182, OPA2182, and OPA4182 (OPAx182) are ultra-low noise, fast-settling, zero-drift, high-precision operational amplifiers, These devices provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled start-up system. These devices also feature excellent ac performance combined with only 0.45 µV of offset voltage and 0.003 µV/°C of drift over temperature. All these features make the OPAx182 a great choice for data acquisition, battery test, analog input modules, weigh scales, and any other systems requiring high dc precision and low noise.
The MUX-friendly input architecture prevents inrush current when applying large input differential voltages and improves settling performance in multichannel systems. Moreover, the controlled start-up system rejects any inrush current when ramping up the supply rails, all while providing robust ESD protection during shipment, handling, and assembly.
The device is specified from –40°C to +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPAx182 36-V, 5-MHz, Low-Noise, Zero-Drift, MUX-Friendly, Precision Op Amps datasheet (Rev. E) | PDF | HTML | Aug 30, 2022 |
| White paper | Optimizing Chopper Amplifier Accuracy (Rev. A) | PDF | HTML | May 15, 2025 | |
| Application note | Static Magnet Power Supply Design for Magnetic Resonance Imaging Application | PDF | HTML | Jan 22, 2024 | |
| Application brief | MUX-Friendly, Precision Operational Amplifiers (Rev. C) | PDF | HTML | Feb 8, 2022 | |
| Application note | Voltage-to-current (V-I) converter circuit with MOSFET (Rev. A) | PDF | HTML | Aug 20, 2021 | |
| Application brief | Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) | PDF | HTML | Dec 8, 2020 | |
| Application brief | How to Select Precision Amplifiers for Semiconductor Testers (Rev. A) | PDF | HTML | Dec 3, 2020 | |
| Analog design Journal | Precision signal conditioning for safety-enabled AIMs in factory automation | Sep 30, 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |
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