LMC6484

LMC6484 CMOS Quad Rail-to-Rail Input and Output Operational Amplifier May 1999 LMC6484 CMOS Quad Rail-to-Rail Input and Output Operational Amplifier General Description The LMC6484 provides a common-mode range that extends to both supply rails. This rail-to-rail performance combined with excellent accuracy, due to a high CMRR, makes it unique among rail-to-rail input amplifiers. It is ideal for systems, such as data acquisition, that require a large input signal range. The LMC6484 is also an excellent upgrade for circuits using limited common-mode range amplifiers such as the TLC274 and TLC279. Maximum dynamic signal range is assured in low voltage and single supply systems by the LMC6484’s rail-to-rail output swing. The LMC6484’s rail-to-rail output swing is guaranteed for loads down to 600Ω. Guaranteed low voltage characteristics and low power dissipation make the LMC6484 especially well-suited for battery-operated systems. See the LMC6482 data sheet for a Dual CMOS operational amplifier with these same features. Features (Typical unless otherwise noted) n Rail-to-Rail Input Common-Mode Voltage Range (Guaranteed Over Temperature) n Rail-to-Rail Output Swing (within 20 mV of supply rail, 100 kΩ load) n Guaranteed 3V, 5V and 15V Performance n Excellent CMRR and PSRR: 82 dB n Ultra Low Input Current: 20 fA n High Voltage Gain (RL = 500 kΩ): 130 dB n Specified for 2 kΩ and 600Ω loads Applications Data Acquisition Systems Transducer Amplifiers Hand-held Analytic Instruments ...