OPA2211 Precision Operational Amplifiers Texas Instruments OPA2211 Precision Operational Amplifiers achieve a very low noise density with a supply current of only 3.6mA and also offer rail-to-rail output swing, which maximizes dynamic range. The extremely low voltage, low current noise, high speed, and wide output swing of the TI OPA2211 makes this device an excellent choice as a loop filter amplifier in PLL applications. The TI OPA2211 op amp provides 700ns settling time to 16-bit accuracy throughout 10V output swings in precision data acquisition applications.