LMC6484 Ultra-low Bias Current, Precision CMOS Rail-to-Rail Input and Output Operational Amplifier | TI.com

LMC6484 (ACTIVE)

Ultra-low Bias Current, Precision CMOS Rail-to-Rail Input and Output Operational Amplifier

 

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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 it unique among rail-to-rail input amplifiers.

It is ideal for systems, such as data acquisition, that require a large input signal range. The LMC6484 is also an excellent upgrade for circuits using limited common-mode range amplifiers such as the TLC274 and TLC279.

Maximum dynamic signal range is assured 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 ensured for loads down to 600 Ω.

Specified low voltage characteristics and low power dissipation make the LMC6484 especially well-suited for battery-operated systems.

See the LMC6482 (SNOS674) data sheet for a dual CMOS operational amplifier with these same features.

Features

  • 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)
  • Assured 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

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Parametrics Compare all products in Precision op amps (Vos<1mV)

 
Number of channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-rail
Vos (offset voltage @ 25 C) (Max) (mV)
Offset drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1 kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
Input bias current (Max) (pA)
Output current (Typ) (mA)
Features
Architecture
LMC6484
4    
3    
15    
1.5    
1.3    
In
Out    
0.75    
1    
0.5    
37    
82    
Catalog    
-40 to 85    
PDIP | 14
SOIC | 14    
See datasheet (PDIP)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)    
2    
30    
   
CMOS    

Design tool

Design with LMC6484

Filter Type
 Lowpass
 Highpass
 Bandpass
 Bandstop
 
Cutoff Frequency  Hz
Gain  dB
Filter Response
Filter Order