LMC6494  Product Folder

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 common-mode 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.

Ultra-low input current of 150 fA and 120 dB open loop gain provide high accuracy and direct interfacing with high impedance sources.

(Typical unless otherwise noted)

• Rail-to-Rail input common-mode voltage range, guaranteed over temperature
• Rail-to-Rail output swing within 20 mV of supply rail, 100 kOhm load
• Operates from 5V to 15V supply
• Excellent CMRR and PSRR 82 dB
• Ultra low input current 150 fA
• High voltage gain (R_L = 100 kOhm) 120 dB
• Low supply current (@ V_S = 5V) 500 µA/Amplifier
• Low offset voltage drift 1.0 µV/°C

• Automotive transducer amplifier
• Pressure sensor
• Oxygen sensor
• Temperature sensor
• Speed sensor