SNOS724D – AUGUST 2000 – REVISED MARCH 2013
LMC6492 Dual/LMC6494 Quad CMOS Rail-to-Rail Input and Output Operational Amplifier
Check for Samples: LMC6492, LMC6494
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
• Low Offset Voltage Drift 1.0 μV/°C
• Automotive Transducer Amplifier
• Pressure Sensor
• Oxygen Sensor
• Temperature Sensor
• Speed Sensor
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.
Figure 1. 8-Pin PDIP/SOIC - Top View
Figure 2. 14-Pin PDIP/SOIC - Top View
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