
Precision Full-Wave Rectifier, Dual-Supply
The OPA2211 is a low-noise precision bipolar input op amp making it an excellent choice for a high performance version of this circuit. The OPA2211 features 1.1 nV/ √Hz broadband noise and 0.00015% THD at 1 kHz, output slew rate of 27 V/μs, 45 MHz unity-gain bandwidth, and 130 dB of open-loop gain.