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Operational Amplifiers - Op Amps CMOS Quad R/R I/O Op Amp

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LMC6484AIN/NOPB General 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 amplifiers.

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 amplifiers, such as the TLC274 and 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 specified for loads down to 600 Ω.

Specified low voltage characteristics and low power dissipation make the LMC6484 an excellent choice for battery-operated systems.

See the LMC6482 for a dual CMOS operational amplifier with these same features.

Texas Instruments, Inc Inventory

Key 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)
  • 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
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 15
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Vos (offset voltage at 25°C) (max) (mV) 0.75
GBW (typ) (MHz) 1.5 Slew rate (typ) (V/µs) 1.3
Rail-to-rail In, Out Offset drift (typ) (µV/°C) 1
Iq per channel (typ) (mA) 0.4125 Vn at 1 kHz (typ) (nV√Hz) 37
CMRR (typ) (dB) 82 Rating Catalog
Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 4
Iout (typ) (A) 0.015 Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.25 Input common mode headroom (to positive supply) (typ) (V) 0.25
Output swing headroom (to negative supply) (typ) (V) 0.1 Output swing headroom (to positive supply) (typ) (V) -0.1
THD + N at 1 kHz (typ) (%) 0.01 Pin Count 14
Package Category Dual-In-Line Packages

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Convenient joystick mount

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Availability: 4236 PCS

Qty. Unit Price(USD) Ext. Price
1+ $2.023 $2.02
10+ $1.978 $19.78
25+ $1.947 $48.68
100+ $1.917 $191.70

The prices below are for reference only.