Operational amplifier, OPA4277PA, Texas Instruments
The precision operational amplifier replaces the industry standard OP-177. This product offers improved noise performance, a wider output voltage swing, and operates at twice the speed with half the quiescent current. Features include ultra-low offset voltage and drift, low bias current, high common-mode rejection, and high power supply rejection. This is easy to use and free from phase inversion and the overload problems found in some other op amps. This device is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.