An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LMC6484
SNOS675D – AUGUST 2000 – REVISED JUNE 2020
LMC6484 CMOS, Quad, Rail-to-Rail Input and Output, Operational Amplier
1
1 Features
1
• Rail-to-rail input common-mode voltage range
(specied over temperature)
• Rail-to-rail output swing (within 20 mV of supply
rail, 100-k load)Ω
• Specied 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 k ): 130 dBΩ
• Specied for 2-k and 600- loadsΩ Ω
2 Applications
•Data acquisition (DAQ)
•Currency counter
•Oscilloscope (DSO)
•Intra-DC interconnect (METRO)
•Macro remote radio unit (RRU)
•Multiparameter patient monitor
•Merchant telecom rectiers
•Train control and management
•Process analytics (pH, gas, concentration, force,
and humidity)
•Three phase UPS
• Improved replacement for TLC274, TLC279
3 Description
The LMC6484 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 ampliers.
The LMC6484 is an excellent choice for systems,
such as data acquisition, that require a large input
signal range. The device is also an excellent upgrade
for circuits using limited common-mode range
ampliers, such as the and .TLC274 TLC279
Maximum dynamic signal range is maintained in low
voltage and single-supply systems by the rail-to-rail
output swing of the LMC6484. The rail-to-rail output
swing of the LMC6484 is specied for loads down to
600 .Ω
Specied low voltage characteristics and low power
dissipation make the LMC6484 an excellent choice
for battery-operated systems.
See the for a dual CMOS operationalLMC6482
amplier with these same features.
Device Information(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
LMC6484 SOIC (14) 8.65 mm × 3.91 mm
PDIP (14) 19.177 mm × 6.35 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Single-Ended Unity Gain Buer