Overview
The LM324J is a quad operational amplifier (op amp) produced by Texas Instruments. It is part of the LM324 series, which is known for its high performance, low power consumption, and versatility. The LM324J is designed to operate from a single power supply or dual supplies, making it suitable for a wide range of applications. This device consists of four independent, high-gain, internally frequency-compensated op amps, each capable of operating over a broad voltage range.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | - | 32 | V |
| Dual Supplies | ±1.5 | - | ±16 | V |
| Input Bias Current | - | 45 | 100 | nA |
| Input Offset Voltage | - | 2 | 3 | mV |
| Common-Mode Input Voltage Range | -0.3 | - | VCC | V |
| Differential Input Voltage Range | - | - | ±32 | V |
| Output Voltage Swing | 0 | - | VCC - 1.5 | V |
| Operating Temperature Range | 0 | - | 70 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
Key Features
- Internally frequency compensated for unity gain stability
- Large DC voltage gain (100 dB)
- Wide bandwidth (1 MHz at unity gain)
- Single supply operation: 3 V to 32 V, or dual supplies: ±1.5 V to ±16 V
- Very low supply current drain (700 µA), essentially independent of supply voltage
- Low input biasing current (45 nA typical)
- Low input offset voltage (2 mV typical)
- Input common-mode voltage range includes ground
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing to ground, even with single supply operation
- ESD clamps on the inputs for increased ruggedness
- RoHS compliant and Pb-free, halogen-free/BFR-free
Applications
- Transducer amplifiers
- DC gain blocks
- Conventional op amp circuits in single power supply systems
- 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 for the LM324J?
The LM324J can operate from a single supply of 3 V to 32 V or dual supplies of ±1.5 V to ±16 V.
- How many operational amplifiers are included in the LM324J package?
The LM324J includes four independent operational amplifiers.
- What is the typical input bias current of the LM324J?
The typical input bias current is 45 nA.
- What is the input offset voltage of the LM324J?
The typical input offset voltage is 2 mV.
- Can the LM324J operate with a single power supply?
- What is the operating temperature range for the LM324J?
The operating temperature range is 0°C to 70°C.
- Is the LM324J RoHS compliant?
- What are some common applications of the LM324J?
- Does the LM324J have ESD protection?
- What is the bandwidth of the LM324J at unity gain?
