LM224 General Purpose Quadruple Operational Amplifier
The LM224 Op-Amp is a low-cost, high-Performance Quadruple Operational Amplifier that consists of four independent high-gain frequency-compensated operational amplifiers which are designed specifically to operate from a single supply or split supply over a wide range of voltages.
LM224 Op-Amp Pinout Configuration
|
Pin Number |
Pin Name |
Description |
|
1 |
1 OUT |
Output of Op-Amp 1 |
|
2 |
1 IN- |
Inverting Input of Op-Amp 1 |
|
3 |
1 IN+ |
Non-Inverting Input of Op-Amp 1 |
|
4 |
VCC |
Supply Voltage |
|
5 |
2 IN+ |
Non-Inverting Input of Op-Amp 2 |
|
6 |
2 IN- |
Inverting Input of Op-Amp 2 |
|
7 |
2 OUT |
Output of Op-Amp 2 |
|
8 |
3 OUT |
Output of Op-Amp 3 |
|
9 |
3 IN- |
Inverting Input of Op-Amp 3 |
|
10 |
3 IN+ |
Non-Inverting Input of Op-Amp 3 |
|
11 |
GND |
Ground or Negative (Dual Polarity Supply) |
|
12 |
4 IN+ |
Non-Inverting Input of Op-Amp 4 |
|
13 |
4 IN- |
Inverting Input of Op-Amp 4 |
|
14 |
4OUT |
Output of Op-Amp 4 |
Features & Specifications
- Wide Supply Voltage Range 3V to 32V
- Dual Polarity Supply ±1.5 V to ±16 V
- Low Supply-Current Drain Independent of Supply Voltage: 0.8 mA Typical
- Common-Mode Input Voltage Range Includes Ground, Allowing Direct Sensing Near Ground
- Input Offset Voltage: 3 mV Typical
- Input Offset Current: 2 nA Typical
- Input Bias Current: 20 nA Typical
- Open-Loop Differential Voltage Amplification 100 V/mV Typical
- Internal Frequency Compensation
- 2-kV ESD Protection
- Unity-gain Bandwidth 1.2 MHZ
Note: Complete technical details can be found in the LM224 IC datasheet given at the end of this page.
LM224 Equivalent Op-Amp
Where to use LM224 Op-Amp
The LM224 is a Quad Package Operational Amplifier, meaning it has four Op-Amps inside it and each Op-Amp can be used independently.
The LM224 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 LM224 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 ±15V power supplies.
How to use LM224 Op-Amp
We can use this IC for audio pre-amplification, basic comparator, adder, and subtractor devices.
In the above figure, the LM224 Op-amp is configured as a basic comparator; the output from the voltage divider is connected to the non-inverting input of the op-amp while the input signal is connected to the inverting input. When the input voltage is less than the voltage divider output the op-amp comparator's output will be high, likewise, the reverse is true. When vin is greater than the voltage divider output the op-amp comparator output will change. Then depending upon which op-amp inputs we use for the signal and the reference voltage; we can produce an inverting or non-inverting output.
Applications
- Blu-ray Players and Home Theatres
- Chemical and Gas Sensors
- DVD Recorders and Players
- Digital Multimeter: Bench a. Systems
- Digital Multimeter: Handhelds
- Field Transmitter: Temperature Sensors
- Motor Control: AC Induction, Brushed DC, Brushless DC, High-Voltage, Low-Voltage, Permanent Magnet, a. Stepper Motor
- Oscilloscopes
- TV: LCD and Dig.
- Temperature Sensors or Controllers Using Modbus
- Weigh Scales
2D Model and Dimensions
If you are designing a PCB or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions.
