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Home > Technology List > HARRIS Quadruple operationl amplifiers_LM124

HARRIS Quadruple operationl amplifiers_LM124

Update Time: 2019-12-20 18:38:38

HARRIS Quadruple operationl amplifiers_LM124

The Description Of LM124

The LM124-N series consists of four independent,high-gain, internally frequency compensated operational amplifiers designed 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 LM124-N series can directly operate off of the standard 5-V power supply voltage which is used in digital systems and easily provides the required interface electronics without requiring the additional ±15 V power supplies.


• 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 3 V to 32 V
– or Dual Supplies ±1.5 V to ±16 V
• Very Low Supply Current Drain (700 μA)
—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
• Differential Input Voltage Range Equal to the
Power Supply Voltage
• Large Output Voltage Swing 0 V to V
+ − 1.5 V
• Advantages:
– Eliminates Need for Dual Supplies
– Four Internally Compensated Op Amps in a
Single Package
– Allows Direct Sensing Near GND and VOUT
also Goes to GND
– Compatible With All Forms of Logic
– Power Drain Suitable for Battery Operation
– In the Linear Mode the Input Common-Mode,
Voltage Range Includes Ground and the
Output Voltage
– Can Swing to Ground, Even Though Operated
from Only a Single Power Supply Voltage
– Unity Gain Cross Frequency is Temperature
– Input Bias Current is Also Temperature


Transistor Polarity: N-Channel

Drain-Source Breakdown Voltage:500 V
Gate-Source Breakdown Voltage:+/- 20 V
Continuous Drain Current:20 A
Resistance Drain-Source RDS(on):0.27 Ohms
Configuration Single
Maximum Operating Temperature:+ 150 C
Minimum Operating Temperature:- 55 C
Power Dissipation  :280 W
Rise Time  :59 ns
Supplier Device Package TO-247-3 
Package / Case TO-247-3
Rise Time: 81 ns  
Subcategory: MOSFETs  
Typical Turn-Off Delay Time: 85 ns  
Typical Turn-On Delay Time: 23 ns 

Application Information
The LM124 series of amplifiers is specified for operation from 3 V to 32 V (±1.5 V to ±16 V).
Many of the specifications apply from –40°C to 125°C. Parameters that can exhibit significant variance with regards to operating voltage or temperature are presented in Typical Characteristics.
8.2 Typical Applications
Figure 15 emphasizes operation on only a single power supply voltage. If complementary power supplies are available, all of the standard op amp circuits can be used. In general, introducing a pseudo-ground (a bias voltage reference of V+/2) will allow operation above and below this value in single power supply systems. Many application circuits are shown which take advantage of the wide input common-mode voltage range which includes ground. In most cases, input biasing is not required and input voltages which range to ground can easily be accommodated 8.2.1 Non-Inverting DC Gain (0 V Input = 0 V Output)   Non-Inverting Amplifier with G=100
Tag: LM124


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