LMC6494

LMC6492, LMC6494 www.ti.com SNOS724D – AUGUST 2000 – REVISED MARCH 2013 LMC6492 Dual/LMC6494 Quad CMOS Rail-to-Rail Input and Output Operational Amplifier Check for Samples: LMC6492, LMC6494 FEATURES 1 2(Typical Unless Otherwise Noted) Rail-to-Rail Input Common-Mode Voltage Range, Ensured Over Temperature Rail-to-Rail Output Swing within 20 mV of Supply Rail, 100 kΩ Load Operates from 5V to 15V Supply Excellent CMRR and PSRR 82 dB Ultra Low Input Current 150 fA High Voltage Gain (RL = 100 kΩ) 120 dB Low Supply Current (@ VS = 5V) 500 μA/Amplifier Low Offset Voltage Drift 1.0 μV/°C APPLICATIONS Automotive Transducer Amplifier Pressure Sensor Oxygen Sensor Temperature Sensor Speed Sensor DESCRIPTION The LMC6492/LMC6494 amplifiers were specifically developed for single supply applications that operate from −40°C to +125°C. This feature is well-suited for automotive systems because of the wide temperature range. A unique design topology enables the LMC6492/LMC6494 common-mode voltage range to accommodate input signals beyond the rails. This eliminates non-linear output errors due to input signals exceeding a traditionally limited commonmode voltage range. The LMC6492/LMC6494 signal range has a high CMRR of 82 dB for excellent accuracy in non-inverting circuit configurations. The LMC6492/LMC6494 rail-to-rail input is complemented by rail-to-rail output swing. This assures maximum dynamic signal range which is particularly important in 5V systems. Ult...