Overview
The LM324AM, produced by onsemi, is a low-cost, quad operational amplifier with true differential inputs. This device is part of the LM324 series, which offers several distinct advantages over standard operational amplifier types, particularly in single supply applications. The LM324AM can operate at supply voltages ranging from 3.0 V to 32 V, with quiescent currents significantly lower than those of the MC1741. This makes it highly suitable for a variety of applications where power efficiency and versatility are crucial.
Key Specifications
| Characteristics | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage | VIO | -2.0 | 5.0 | 7.0 | mV |
| Input Bias Current | IIN(+/-) | 20 | 50 | 100 | nA |
| Input Offset Current | IIO | 2 | 10 | 30 | nA |
| Common Mode Rejection Ratio | CMR | 65 | 70 | - | dB |
| Power Supply Rejection Ratio | PSR | 50 | 100 | - | dB |
| Supply Current | ICC | 0.7 | 1.2 | 3.0 | mA |
| Large Signal Voltage Gain | A_V | 50 | 100 | - | V/mV |
| Bandwidth (Unity Gain) | f | - | 1 | - | MHz |
| Operating Temperature Range | T_A | 0 | - | 70 | °C |
Key Features
- True Differential Input Stage: Provides high input impedance and low input bias currents.
- Single Supply Operation: Can operate from 3.0 V to 32 V, making it versatile for various applications.
- Internally Compensated: Ensures stability and ease of use without external compensation components.
- Common Mode Range Extends to Negative Supply: Eliminates the need for external biasing components in many applications.
- Short Circuited Protected Outputs: Protects the device from short circuits without affecting performance.
- ESD Clamps on the Inputs: Increases ruggedness and protects against electrostatic discharge.
- Four Amplifiers Per Package: Offers multiple amplifiers in a single package, reducing component count and space.
- Industry Standard Pinouts: Compatible with standard pin configurations, making it easy to integrate into existing designs.
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant: Meets environmental and safety standards.
Applications
- Transducer Amplifiers: Ideal for amplifying signals from transducers due to its high gain and low noise characteristics.
- DC Gain Blocks: Suitable for applications requiring stable DC gain.
- Conventional Op Amp Circuits: Can be used in a variety of operational amplifier circuits, including filters, integrators, and differentiators.
- Battery-Operated Devices: Low power consumption makes it suitable for battery-powered applications.
- Industrial Control Systems: Used in control systems where reliability and stability are critical.
Q & A
- What is the operating voltage range of the LM324AM?
The LM324AM can operate from 3.0 V to 32 V.
- How many operational amplifiers are included in the LM324AM package?
The LM324AM includes four operational amplifiers in a single package.
- What is the typical input bias current of the LM324AM?
The typical input bias current is 50 nA.
- Is the LM324AM internally compensated?
- What is the common mode rejection ratio (CMRR) of the LM324AM?
The CMRR is typically 70 dB.
- Does the LM324AM have ESD protection?
- What is the bandwidth (unity gain) of the LM324AM?
The bandwidth at unity gain is 1 MHz.
- Is the LM324AM RoHS compliant?
- What are some common applications of the LM324AM?
- What is the operating temperature range of the LM324AM?
