Texas Instruments (TI) OPA376 family represent a new generation of low-noise operational amplifiers. Rail-to-rail input, low offset (5uV typ), low noise (7.5nV/Hz), quiescent current less than 1mA max, and a 5.5MHz bandwidth make this part very attractive for a variety of precision and portable applications. In addition, this device has a reasonably wide supply range with excellent PSRR, making it attractive for applications that run directly from batteries without regulation.