OPA2211

Product Folder Order Now Technical Documents Tools & Software Support & Community OPA211, OPA2211 SBOS377L – OCTOBER 2006 – REVISED JANUARY 2020 OPAx211 1.1-nv/√Hz Noise, Low Power, Precision Operational Amplifiers 1 Features 1 Low voltage noise: 1.1 nV/√Hz at 1 kHz Input voltage noise: 80 nVPP (0.1 to 10 Hz) THD + N: –136 dB (G = 1, ƒ = 1 kHz) Offset voltage: 125 μV (maximum) Offset voltage drift: 0.35 μV/°C (typical) Low supply current: 3.6 mA/Ch (typical) Unity-gain stable Gain bandwidth product: – 80 MHz (G = 100) – 45 MHz (G = 1) Slew rate: 27 V/μs 16-Bit settling: 700 ns Wide supply range: – ±2.25 to ±18 V, 4.5 V to 36 V Rail-to-rail output Output current: 30 mA SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8 2 Applications Ultrasound scanner Semiconductor test X-ray systems Lab and field instrumentation Data acquisition (DAQ) Radar Wireless communications test Seismic data acquisition DC power supply, ac source, electronic load Power analyzer Source measurement unit (SMU) 3 Description The OPAx211 series of precision operational amplifiers achieves very low 1.1-nV/√Hz noise density with a supply current of only 3.6 mA. This series also offers rail-to-rail output swing, which maximizes dynamic range. The extremely low voltage and low current noise, high-speed, and wide output swing of the OPAx211 series make these devices an excellent choice as a loop filter amplifier in PLL applications. In precision data acquisition app...