Overview
The LM324AMX is a quad operational amplifier (op-amp) produced by onsemi, known for its low cost and versatility in single supply applications. This device is part of the LM324 series, which offers several advantages over standard operational amplifier types. It features true differential inputs, low quiescent currents, and the ability to operate over a wide range of supply voltages from 3.0 V to 32 V. The LM324AMX is internally frequency compensated and includes four independent, high-gain op-amps in a single package, making it suitable for a variety of applications where space and power efficiency are crucial.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3.0 to 32 | V |
| Differential Input Voltage Range | ±40 | V |
| Input Voltage Range | -0.3 to VCC | V |
| Input Bias Current | 50 nA (max) | nA |
| Input Offset Voltage | ±2 mV (BA version), ±3 mV (B version) | mV |
| Gain-Bandwidth Product (Unity Gain) | 1 MHz | MHz |
| Slew Rate | 0.6 V/μs | V/μs |
| Output Voltage Swing | 0 V to V+ - 1.5 V | V |
| Operating Temperature Range | 0 to 70 | °C |
| Package Type | SOIC-14, TSSOP-14, etc. |
Key Features
- True Differential Input Stage: Allows for direct sensing near ground and output voltage swing to ground.
- Single Supply Operation: Can operate from a single power supply voltage ranging from 3.0 V to 32 V.
- Internally Compensated: Ensures stability in unity gain configurations.
- Low Input Bias Currents: Maximum of 50 nA, which is temperature compensated.
- Common Mode Input Range: Includes the negative supply voltage, eliminating the need for external biasing components.
- Short Circuited Protected Outputs: Enhances durability and reliability.
- ESD Clamps on Inputs: Increases ruggedness without affecting device operation.
- Industry Standard Pinouts: Facilitates easy integration into existing designs.
Applications
- Transducer Amplifiers: Suitable for amplifying signals from various transducers.
- DC Gain Blocks: Used in applications requiring high gain in DC circuits.
- Power Supply Units: Found in merchant network and server power supply units, mobile chargers, and desktop PC power supplies.
- Consumer Electronics: Used in multi-function printers, indoor and outdoor air conditioners, washers, dryers, and refrigerators.
- Industrial Control Systems: Employed in various industrial control and monitoring systems.
Q & A
- What is the supply voltage range for the LM324AMX?
The LM324AMX can operate from a single supply voltage ranging from 3.0 V to 32 V, or from dual supplies ±1.5 V to ±16 V. - How many op-amps are included in the LM324AMX package?
The LM324AMX includes four independent, high-gain op-amps in a single package. - What is the input bias current of the LM324AMX?
The input bias current is a maximum of 50 nA, which is temperature compensated. - Does the LM324AMX require external biasing components?
No, the common mode input range includes the negative supply voltage, eliminating the need for external biasing components in many applications. - What is the gain-bandwidth product of the LM324AMX?
The gain-bandwidth product (unity gain) is 1 MHz. - Is the LM324AMX protected against short circuits?
Yes, the LM324AMX has short-circuited protected outputs. - What is the operating temperature range of the LM324AMX?
The operating temperature range is from 0°C to 70°C. - What types of packages are available for the LM324AMX?
The LM324AMX is available in packages such as SOIC-14, TSSOP-14, and others. - Can the LM324AMX be used in battery-operated devices?
Yes, the LM324AMX has low power supply current drain, making it suitable for battery operation. - Is the LM324AMX compatible with digital logic systems?
Yes, it is compatible with all forms of logic and can operate directly off standard digital system power supply voltages.
