OPA2189

Product Folder Order Now Technical Documents Tools & Software Support & Community OPA189, OPA2189 SBOS830E – SEPTEMBER 2017 – REVISED MAY 2019 OPAx189 Precision, Lowest-Noise 36-V, Zero-Drift, 14-MHz MUX-Friendly, Rail-to-Rail Output, Operational Amplifiers 1 Features 1 Ultra-high precision: – Zero-drift: 0.005 μV/°C (OPA189) – Ultra-low offset voltage: 3 μV maximum (OPA189) Excellent dc precision: – CMRR: 168 dB – Open-loop gain: 170 dB Low noise: – en at 1 kHz: 5.2 nV/√Hz – 0.1-Hz to 10-Hz noise: 0.1 µVPP Excellent dynamic performance: – Gain bandwidth: 14 MHz – Slew rate: 20 V/µs – Fast settling: 10-V step, 0.01% in 1.1 µs Robust design: – MUX-friendly inputs – RFI/EMI filtered inputs Wide supply range: 4.5 V to 36 V Quiescent current: 1.7 mA (maximum) Rail-to-rail output Input includes negative rail 2 Applications Precision multichannel systems Bridge amplifier Strain gauges Temperature measurement Resistance temperature detectors 3 Description The OPA189 and OPA2189 (OPAx189) highprecision 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 ...