1 Features
•Specifications are typical unless otherwise noted
•Rail-to-rail input common-mode voltage range (specified over
temperature)
•Rail-to-rail output swing (within 20-mV of supply rail, 100-kΩ
load)
•Specified 3-V, 5-V, and 15-V performance
•Excellent CMRR and PSRR: 82 dB
•Ultra-low input current: 20 fA
•High voltage gain (RL = 500 kΩ): 130 dB
•Specified for 2-kΩ and 600-Ω loads
•Power-good output
•Packages: PDIP, SOIC, and VSSOP
2 Applications
•Data acquisition (DAQ)
•Currency counter
•Oscilloscope (DSO)
•Intra-DC interconnect (METRO)
•Macro remote radio unit (RRU)
•Multiparameter patient monitor
•Merchant telecom rectifiers
•Train control and management
•Process analytics (pH, gas, concentration, force, and humidity)
•Three phase UPS
•Improved replacement for TLC272, TLC277
3 Description
The LMC6482 device 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 this device unique among rail-to-rail input amplifiers.
The device is an excellent choice for systems, such as data
acquisition,
that require a large input signal range. The LMC6482 is also an
excellent upgrade for circuits using limited
common-mode range amplifiers, such as the TLC272 and TLC277.
Maximum dynamic signal range is provided in low voltage and single
supply systems by the rail-to-rail output swing of the LMC6482.
The rail-to-rail output swing is maintained for loads down to 600 Ω
of the device.
Specified low-voltage characteristics and low power dissipation
make the LMC6482 a great choice for battery-operated systems.
The LMC6482 is available in 8-pin PDIP and SOIC packages.
The device is also available in a VSSOP package, almost half the
size of a SOIC-8 device.
See the LMC6484 for a quad CMOS operational amplifier with
these same features.
