LM124QML

` Internally frequency compensated for unity gain
` Large DC voltage gain 100 dB
` Wide bandwidth (unity gain) 1 MHz (temperature compensated)
` Wide power supply range: Single supply 3V to 32V or dual supplies ±1.5V to ±16V
` Very low supply current drain (700 A)-essentially independent of supply voltage
` Low input biasing current 45 nA (temperature compensated)
` Low input offset voltage 2 mV and offset current: 5 nA
` Input common-mode voltage range includes ground
` Differential input voltage range equal to the power supply voltage
` Large output voltage swing 0V to V+ − 1.5V

Supply Voltage, V⁺                                                    32Vdc or +16Vdc
Differential Input Voltage                                                           32Vdc
Input Voltage                                                         −0.3Vdc to +32Vdc
Input Current
(V_IN < −0.3Vdc) (Note 4)                                                            50 mA
Power Dissipation (Note 2)
CERDIP                                                                                   1260mW
CERPACK                                                                                   700mW
LCC                                                                                         1350mW
CERAMIC SOIC                                                                          700mW
Output Short-Circuit to GND
(One Amplifier) (Note 3)
V⁺ 15Vdc and T_A = 25                                                  Continuous
Operating Temperature Range                           −55 T_A +125
Maximum Junction Temperature                                                   150
Storage Temperature Range                              −65 T_A +150
Lead Temperature (Soldering, 10 seconds)                                 260
Thermal Resistance ThetaJA
CERDIP (Still Air)                                                                      103 C/W
(500LF/Min Air flow)                                                                   51 C/W
CERPACK (Still Air)                                                                    176 C/W
(500LF/Min Air flow)                                                                 116 C/W
LCC (Still Air)                                                                              91 C/W
(500LF/Min Air flow)                                                                   66 C/W
CERAMIC SOIC (Still Air)                                                           176 C/W
(500LF/Min Air flow)                                                                 116 C/W
ThetaJC
CERDIP                                                                                      19 C/W
CERPACK                                                                                   18 C/W
LCC                                                                                           24 C/W
CERAMIC SOIC                                                                          18 C/W
Package Weight (Typical)
CERDIP                                                                                            TBD
CERPACK                                                                                         TBD
LCC                                                                                                 TBD
CERAMIC SOIC                                                                            410mg
ESD Tolerance (Note 5)                                                                 250V
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: 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 lower.

Note 3: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15Vdc, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.

Note 4: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3Vdc (at 25 C).

Note 5: Human body model, 1.5 k in series with 100 pF.

The LM124QML consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.

Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits which now can be more easily implemented in single power supply systems. For example, the LM124QML can be directly operated off of the standard +5Vdc power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring the additional +15Vdc power supplies.