The OPA228PA is an Operational Amplifier combines low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both AC and precision DC performance. The OPAx228 is optimized for closed-loop gains of 5 or greater and offers higher speed with a slew rate of 10V/μs and a bandwidth of 33MHz. The OPAx228 series operational amplifier is ideal for professional audio equipment. In addition, low quiescent current make them ideal for portable applications requiring high precision. The OPAx228 series operational amplifier is pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements across the board.