LPC660

LPC660 Low Power CMOS Quad Operational Amplifier March 1998 LPC660 Low Power CMOS Quad Operational Amplifier General Description The LPC660 CMOS Quad operational amplifier is ideal for operation from a single supply. It features a wide range of operating voltages from +5V to +15V and features rail-to-rail output swing in addition to an input common-mode range that includes ground. Performance limitations that have plagued CMOS amplifiers in the past are not a problem with this design. Input VOS, drift, and broadband noise as well as voltage gain (into 100 kΩ and 5 kΩ) are all equal to or better than widely accepted bipolar equivalents, while the power supply requirement is typically less than 1 mW. This chip is built with National’s advanced Double-Poly Silicon-Gate CMOS process. See the LPC662 datasheet for a Dual CMOS operational amplifier and LPC661 datasheet for a single CMOS operational amplifier with these same features. n n n n n Long-term integrator High-impedance preamplifier Active filter Sample-and-Hold circuit Peak detector Features n n n n n n n n n n n n Rail-to-rail output swing Micropower operation: Specified for 100 kΩ and 5 kΩ loads High voltage gain: Low input offset voltage: Low offset voltage drift: Ultra low input bias current: Input common-mode includes V− Operation range from +5V to +15V Low distortion: Slew rate: Full military temp. range available (1 mW) 120 dB 3 mV 1.3 µV/˚C 2 fA Applications n High-impedance buffer n Precision current-to-voltag...