The OPAx187 series operational amplifiers use auto-zeroing techniques to simultaneously provide low-offset voltage (1 µV), and near zero drift over time and temperature. These miniature, high-precision, low-quiescent current amplifiers offer high-input impedance and rail-to-rail output swing within 5 mV of the rails into high-impedance loads. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range of 4.5 V to 36 V (±2.25 V to ±18 V).
The single version OPAx187 device is available in microsize 8-pin VSSOP, 5-pin SOT-23, and 8-pin SOIC packages. The dual version is offered in 8-pin VSSOP and 8-pin SOIC packages. The quad version is offered in 14-pin SOIC, 14-pin TSSOP, and 16-pin WQFN packages. All versions are specified for operation from –40°C to +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPAx187 0.001-µV/°C Drift, Low Power, Rail-to-Rail Output 36-V Operational Amplifiers Zero-Drift Series datasheet (Rev. E) | PDF | HTML | May 21, 2020 |
| Application brief | Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) | PDF | HTML | Dec 5, 2024 | |
| Application brief | Zero-Drift Amplifiers: Features and Benefits (Rev. C) | Jan 28, 2021 | ||
| Application brief | Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) | PDF | HTML | Dec 8, 2020 | |
| Application brief | EMI-Hardened Op Amps Reduce Errors in EKGs (Rev. A) | Aug 21, 2019 | ||
| Application brief | Green-Williams-Lis: Improved Op Amp Spice Model | Jan 28, 2019 | ||
| Application brief | How to Properly Configure Unused Operational Amplifiers (Rev. A) | Sep 21, 2018 |
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 |
|---|---|---|
| WQFN (RUM) | 16 | Ultra Librarian |
| TSSOP (PW) | 14 | Ultra Librarian |
| SOIC (D) | 14 | Ultra Librarian |
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