Overview
The LM224ADRG4 is a quad operational amplifier (op-amp) produced by Texas Instruments. It is part of the next-generation LM324B and LM2902B series, which are designed to replace the industry-standard LM324 and LM2902 devices. These op-amps are known for their high voltage tolerance, low offset voltage, and robust environmental resilience. The LM224ADRG4 is particularly suited for cost-sensitive applications that require high performance and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | -25 to 85 | °C |
| Supply Voltage Range | 3 to 36 | V |
| Input Offset Voltage (Typical) | ±3 mV | mV |
| ESD Rating (HBM/CDM) | 2 kV / 1.5 kV | V |
| Input Bias Current (Maximum) | 50 nA | nA |
| Common-Mode Input Voltage Range | 0 to VCC - 1.5 | V |
| Differential Input Voltage | Up to supply voltage | V |
| Quiescent Current per Amplifier (Typical) | 240 µA | µA |
Key Features
- Wide supply range: 3 V to 36 V (B, BA versions)
- Low input offset voltage: ±2 mV (BA version) / ±3 mV (B version)
- High ESD protection: 2 kV (HBM), 1.5 kV (CDM)
- Integrated RF and EMI filter
- Low input bias current: 50 nA maximum (across -40°C to 125°C)
- Common-mode input voltage range includes V–
- Input voltage differential can be driven up to supply voltage
- Unity-gain stable
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 operating temperature range of the LM224ADRG4?
The operating temperature range is -25°C to 85°C.
- What is the supply voltage range for the LM224ADRG4?
The supply voltage range is 3 V to 36 V.
- What is the typical input offset voltage for the LM224ADRG4?
The typical input offset voltage is ±3 mV.
- Does the LM224ADRG4 have ESD protection?
- What is the common-mode input voltage range for the LM224ADRG4?
The common-mode input voltage range includes V– up to VCC - 1.5 V.
- Can the LM224ADRG4 be used in environmentally challenging applications?
- Is the LM224ADRG4 unity-gain stable?
- What is the quiescent current per amplifier for the LM224ADRG4?
The quiescent current per amplifier is typically 240 µA.
- Can the LM224ADRG4 replace older versions of LM224, LM324, and LM2902 devices?
- What are some common applications for the LM224ADRG4?
Common applications include power supplies, mobile chargers, desktop PCs, air conditioners, and uninterruptible power supplies.
