XR-146

XR-146/246/346 Programmable Quad Operational Amplifiers GENERAL DESCRIPTION The XR-146 family of quad operational amplifiers contain four independent high-gain, low-power, programmable op-amps on a monolithic chip. The use of external bias setting resistors permit the user to program gain-bandwidth product, supply current, input bias current, input offset current, input noise and the slew rate. The basic XR-146 family of circuits offer partitioned programming of the internal op-amps where one setting resistor is used to set the bias levels in the three op-amps, and a second bias setting is used for the remaining op-amp. Its modified version, the XR-346-2 provides a separate bias setting resistor for each of the two op-amp pairs. FEATURES Programmable Micropower operation Low noise Wide power supply range Class AB output Ideal pin out for biquad active filters Overload protection for input and output Internal frequency compensation APPLICATIONS Total Supply Current = 1.4 mA (lSE...