Overview
The LM324AN is a quadruple operational amplifier (op amp) produced by Texas Instruments. It is part of the next-generation LM324B and LM2902B series, which are drop-in replacements for all versions of the LM224, LM324, and LM2902 devices. These op amps are designed to provide outstanding value for cost-sensitive applications, featuring low offset voltages, high differential input voltage capability, and a wide supply voltage range.
The LM324AN is particularly suited for applications requiring high reliability and robust performance in environmentally challenging conditions, thanks to its integrated EMI and RF filters and high ESD ratings.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM324AN |
| Package Type | PDIP (N), 14 Pins |
| Operating Temperature Range | 0°C to 70°C |
| Supply Voltage Range | 3V to 32V |
| Number of Amplifiers | 4 |
| Bandwidth | 1 MHz |
| Slew Rate | 0.5 V/µs |
| Input Offset Voltage (Max) | ±3 mV (B version), ±2 mV (BA version) |
| Input Bias Current (Max) | 50 nA |
| ESD Rating | 2 kV (HBM), 1.5 kV (CDM) |
| Common-Mode Input Voltage Range | Includes V– |
| RoHS Compliance | Yes |
Key Features
- Improved specifications over previous versions, including lower input offset voltage and higher ESD ratings.
- Wide supply voltage range: 3V to 32V.
- Low input offset voltage: ±2 mV (BA version) / ±3 mV (B version).
- High ESD ratings: 2 kV (HBM), 1.5 kV (CDM).
- Integrated EMI and RF filters for enhanced noise rejection.
- Low input bias current: 50 nA maximum.
- Common-mode input voltage range includes V–.
- Input voltage differential can be driven up to supply voltage.
- Unity-gain stable with a quiescent current of 240 µA per amplifier (typical).
Applications
- Merchant network and server power supply units.
- Multi-function printers.
- Power supplies and mobile chargers.
- Desktop PC and motherboard.
- Indoor and outdoor air conditioners.
- Washers, dryers, and refrigerators.
- AC inverters, string inverters, central inverters, and voltage frequency drives.
- Uninterruptible power supplies.
Q & A
- What is the LM324AN?
The LM324AN is a quadruple operational amplifier produced by Texas Instruments, part of the next-generation LM324B and LM2902B series.
- What is the supply voltage range of the LM324AN?
The supply voltage range of the LM324AN is 3V to 32V.
- What is the input offset voltage of the LM324AN?
The input offset voltage of the LM324AN is ±3 mV (B version) and ±2 mV (BA version).
- Does the LM324AN have ESD protection?
Yes, the LM324AN has high ESD ratings of 2 kV (HBM) and 1.5 kV (CDM).
- What is the common-mode input voltage range of the LM324AN?
The common-mode input voltage range of the LM324AN includes V–.
- Is the LM324AN RoHS compliant?
Yes, the LM324AN is RoHS compliant.
- What are some typical applications of the LM324AN?
Typical applications include power supplies, mobile chargers, desktop PCs, air conditioners, and uninterruptible power supplies.
- Can the LM324AN replace older versions of LM324 and LM2902?
Yes, the LM324AN can drop-in replace all versions of the LM224, LM324, and LM2902 devices.
- What is the slew rate of the LM324AN?
The slew rate of the LM324AN is 0.5 V/µs.
- What is the bandwidth of the LM324AN?
The bandwidth of the LM324AN is 1 MHz.
