6352

Supply Voltage
                                                                                   + 22V
Differential Input Voltage
                                                                                   + 44V
Output Short Circuit Duration
(Note 2)
                                                                                   Continuous
Power Dissipation
(Note 3)
  (Pd at 25 C)                                                              1100mW
Maximum Junction Temperature (TjMAX)
                                                                                   150 C
Operating Temperature Range
                                                                                   -55 C < TA < +125 C
Storage Temperature Range
                                                                                   -65 C to +150 C
Lead Temperature (Soldering, 10 seconds)
                                                                                   300 C
Thermal Resistance
ThetaJA
    (Still Air)                                                                  103 C/W
    (500LF/Min Air flow)                                                 52 C/W
    ThetaJC                                                                   19 C/W
ESD Tolerance
(Note 4)
                                                                                    500V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.  Note 2: Any of the amplifier outputs can be shorted to ground indefinitely however, more than one should not be simultaneously shorted as the maximum junction temperature will be exceeded.  

Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax - TA)/ThetaJA or the number given in the Absolute Maximum Ratings, whichever is less. 
 
Note 4: Human body model, 1.5K Ohms in series with 100pF.

The LM149 is a quad op amp. It consists of four independent, high gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar LM741 operational amplifier.In addition the total supply current for all four amplifiers is comparable to the supply current of a single LM741 type op amp. Other features of LM149 include input offset currents and input bias current which are much less than those of standard LM741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. The LM149 has the same features as the LM148 plus a gain bandwidth product of a 4 MHz at a gain of 5 or greater. 

The LM149 can be used anywhere multiple LM741 or LM1558 type amplifiers are being used and in applications where amplifier matching, high packing density, or high speed is required.