The OP11 provides four matched 741-type operational amplifiers in a single 14-lead PDIP. The OP11 is pin compatible with the LM148, LM348, RM4156, RM4158, and HA4741 amplifiers. The amplifier is matched for common-mode rejection ratio and offset voltage, which is very important in designing instrumentation amplifiers. In addition, the amplifier is designed to have equal positive-going and negative-going slew rates, which is an important consideration for good audio system performance. The OP11 is ideal for use in designs requiring minimum space and cost while maintaining performance. Data Sheet, Rev. B, 6/07