Overview
The LM324KNSR, produced by Texas Instruments, is a next-generation quad operational amplifier (op-amp) that builds upon the industry-standard LM324 and LM2902 devices. This component is part of the LM324B series, which offers improved specifications and enhanced performance. The LM324KNSR is designed to provide outstanding value for cost-sensitive applications, featuring low offset voltage, high differential input voltage capability, and a wide supply voltage range. It is unity-gain stable and includes integrated EMI and RF filters, making it suitable for rugged and environmentally challenging applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Supply Voltage Range | 3V to 36V | - | V |
| Input Offset Voltage | ±3mV (LM324B), ±2mV (LM324BA) | ±4.0mV (LM324B), ±2.5mV (LM324BA) | mV |
| Input Bias Current | 50nA | - | nA |
| ESD Rating | 2kV (HBM), 1.5kV (CDM) | - | kV |
| Quiescent Current per Amplifier | 240µA (typical at 5V), 350µA (typical at 36V) | 300µA (at 5V), 750µA (at 36V) | µA |
| Common-Mode Input Voltage Range | Includes V– | - | - |
| Differential Input Voltage | Up to supply voltage | - | - |
Key Features
- Next-generation LM324B and LM2902B devices with improved specifications
- Drop-in replacements for all versions of LM224, LM324, and LM2902
- Wide supply voltage range: 3V to 36V
- Low input offset voltage: ±2mV (BA version) / ±3mV (B version)
- High ESD rating: 2kV (HBM), 1.5kV (CDM)
- Integrated EMI and RF filters
- Low input bias current: 50nA maximum
- Common-mode input voltage range includes V–
- Input voltage differential can be driven up to supply voltage
- Short-circuited protected outputs
- True differential input stage
- Internally compensated
- Industry-standard pinouts
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 supply voltage range of the LM324KNSR?
The supply voltage range of the LM324KNSR is 3V to 36V.
- What is the typical input offset voltage of the LM324B and LM324BA versions?
The typical input offset voltage is ±3mV for the LM324B version and ±2mV for the LM324BA version.
- What is the ESD rating of the LM324KNSR?
The ESD rating is 2kV (HBM) and 1.5kV (CDM).
- What is the quiescent current per amplifier for the LM324KNSR?
The quiescent current per amplifier is typically 240µA at 5V and 350µA at 36V.
- Can the LM324KNSR operate with a single power supply?
Yes, the LM324KNSR can operate with a single power supply as well as dual power supplies.
- What are the key applications of the LM324KNSR?
The LM324KNSR is used in various applications including power supplies, multi-function printers, desktop PCs, air conditioners, and uninterruptible power supplies.
- Is the LM324KNSR internally compensated?
Yes, the LM324KNSR is internally compensated.
- Does the LM324KNSR have integrated EMI and RF filters?
Yes, the LM324KNSR includes integrated EMI and RF filters.
- What is the common-mode input voltage range of the LM324KNSR?
The common-mode input voltage range includes the negative power supply voltage (V–).
- Is the LM324KNSR suitable for environmentally challenging applications?
Yes, the LM324KNSR is designed to be used in rugged and environmentally challenging applications due to its high ESD rating and integrated EMI and RF filters.
