National Semiconductor LMC6484 CMOS Quad Rail-to-Rail Input and Output Operational Amplifier Data Manual
Summary
The LMC6484 is a high-performance CMOS Quad Rail-to-Rail Operational Amplifier designed for applications requiring exceptional accuracy across varying supply rails, especially at low voltage. This device ensures guaranteed rail-to-rail input and output swing with excellent Common Mode Rejection Ratio (CMRR). The manual provides comprehensive technical specifications, application guidelines, and connection diagrams detailing proper implementation in challenging environments. It is ideal for engineers building data acquisition systems, medical instruments, battery-powered equipment, and transducer amplifiers.
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LM uad ail-to-R ail Input and utput perational A plifier
LMC6484 CMOS Quad Rail-to-Rail Input and Output Operational Amplifier General Description Features The LMC6484 provides common-mode range that extends (Typical unless otherwise noted) to both supply rails. This rail-to-rail performance combined Rail-to-Rail Input Common-Mode Voltage Range with excellent accuracy, due to high CMRR, makes it (Guaranteed Over Temperature) unique among rail-to-rail input amplifiers. Rail-to-Rail Output Swing (within m V of supply rail, It is ideal for systems, such as data acquisition, that require kΩ load) large input signal range. The LMC6484 is also an excellent Guaranteed 3V, 5V and 15V Performance upgrade for circuits using limited common-mode range am- Excellent CMRR and PSRR: d B plifiers such as the TLC274 and TLC279.
Ultra Low Input Current: f A
Maximum dynamic signal range is assured in low voltage High Voltage Gain (RL
and single supply systems by the LMC6484’s rail-to-rail out-
Specified for kΩ and 600Ω loads
put swing. The LMC6484’s rail-to-rail output swing is guaran- teed for loads down to 600Ω.
Applications
Guaranteed low voltage characteristics and low power dissi-
Data Acquisition Systems
pation make the LMC6484 especially well-suited for
battery-operated systems. Transducer Amplifiers Hand-held Analytic Instruments
See the LMC6482 data sheet for Dual CMOS operational
amplifier with these same features. Medical Instrumentation Active Filter, Peak Detector, Sample and Hold, p H Meter, Current Source Improved Replacement for TLC274, TLC279
3V Single Supply Buffer Circuit
Rail-to-Rail Input Rail-to-Rail Output
DS011714-3
DS011714-1
DS011714-2
National Semiconductor Corporation DS011714 www.national.com
Page Summary Contents For National Semiconductor LMC6484 CMOS Quad Rail-to-Rail Input and Output Operational Amplifier Data Manual
Manual Details
| Brand | National |
|---|---|
| Pages | 22 |
| File Size | 977.69 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What is the guaranteed output load for this amplifier?
The LMC6484's rail-to-rail output swing is guaranteed for loads down to 600Ω.
What operational temperature range should I use if it's military/aerospace grade?
For models like LMC6484AM, the operating temperature range is -55˚C to +125˚C.
Is this amplifier suitable for low voltage data acquisition systems?
Yes, its rail-to-rail output swing and guarantee of low voltage characteristics make it ideal for Data Acquisition Systems.
What is the maximum input current draw at 5V (for Mapped DIP)?
According to the datasheet, the limit for Current at Input Pin (I) is 5mA.