The OPA189, OPA2189, and OPA4189 (OPAx189) high-precision operational amplifiers are ultra-low noise, fast-settling, zero-drift devices that provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled start-up system. These features and excellent ac performance, combined with only 0.4 µV of offset voltage and 0.005µV/°C of drift over temperature for the single-channel version, make the OPAx189 a great choice for precision instrumentation, signal measurement, and active filtering applications. Moreover, the MUX-friendly input architecture prevents inrush current when applying large input differential voltages, which improves settling performance in multichannel systems, all while providing robust ESD protection during shipment, handling, and assembly.
All versions are specified from –40°C to +125°C.
PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
---|---|---|
OPA189 | SOIC (8) | 4.90 mm × 3.90 mm |
SOT-23 (5) | 2.90 mm × 1.60 mm | |
VSSOP (8) | 3.00 mm × 3.00 mm | |
OPA2189 | SOIC (8) | 4.90 mm × 3.90 mm |
VSSOP (8) | 3.00 mm × 3.00 mm | |
OPA4189 | TSSOP (14) | 5.00 mm × 4.40 mm |
SOIC (14) | 8.65 mm × 3.91 mm |
Changes from Revision H (August 2021) to Revision I (September 2021)
Changes from Revision G (April 2021) to Revision H (August 2021)
Changes from Revision F (July 2020) to Revision G (April 2021)
Changes from Revision E (May 2019) to Revision F (July 2020)
Changes from Revision D (December 2018) to Revision E (May 2019)
Changes from Revision C (October 2018) to Revision D (November 2018)
Changes from Revision B (October 2018) to Revision C (October 2018)
Changes from Revision A (November 2017) to Revision B (October 2018)
Changes from Revision * (September 2017) to Revision A (October 2017)