Overview
The LMV324MX, produced by National Semiconductor (now part of Texas Instruments), is a quad-channel general-purpose, low-voltage operational amplifier. It is designed to operate within a voltage range of 2.7V to 5.5V, making it suitable for a variety of low-voltage applications. This device is part of the LMV3xx series, which includes single, dual, and quad channel versions. The LMV324MX is known for its rail-to-rail output swing, low supply current, and no crossover distortion, making it an excellent choice for space-efficient and cost-effective designs.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage | 2.7V to 5.5V | |
| Operating Temperature Range | −40°C to +125°C | |
| Gain-Bandwidth Product | 1 MHz | |
| Supply Current | 410 µA (Quad) | V+ = 5V, V− = 0V |
| Rail-to-Rail Output Swing | V+ − 10 mV, V− + 65 mV @ 10 kΩ | V+ = 5V, V− = 0V |
| Common Mode Voltage Range | −0.2 V to V+ − 0.8 V | |
| Output Short Circuit Current | 40 mA (Sourcing), 10 mA (Sinking) | VO = 0 V, VO = 5 V |
| Package | SOIC (14), TSSOP (14) |
Key Features
- Low Voltage Operation: Guaranteed performance at 2.7V and 5V, making it suitable for battery-powered systems.
- No Crossover Distortion: Eliminates the crossover distortion common in other operational amplifiers.
- Rail-to-Rail Output Swing: Provides maximum possible dynamic range at the output, particularly important in low supply voltage applications.
- Low Supply Current: Helps maximize battery life in portable devices.
- Space-Saving Packages: Available in small footprint packages such as SOIC and TSSOP, ideal for compact designs.
- Capacitive Load Tolerance: Can directly drive 200 pF in unity-gain without oscillation.
- Input Includes Ground: Allows direct sensing near ground in single supply operation.
Applications
- Active Filters: Suitable for designing active filters due to its low noise and high gain-bandwidth product.
- General Purpose Low Voltage Applications: Ideal for applications requiring low voltage operation and high performance.
- General Purpose Portable Devices: Used in cellular phones, pagers, and other portable electronic systems where space and power efficiency are crucial.
Q & A
- What is the operating voltage range of the LMV324MX?
The LMV324MX operates within a voltage range of 2.7V to 5.5V.
- What is the gain-bandwidth product of the LMV324MX?
The gain-bandwidth product is 1 MHz.
- Does the LMV324MX have crossover distortion?
No, the LMV324MX effectively eliminates crossover distortion.
- What is the typical supply current for the LMV324MX?
The typical supply current is 410 µA for the quad channel version.
- What is the rail-to-rail output swing capability of the LMV324MX?
The rail-to-rail output swing is V+ − 10 mV and V− + 65 mV at 10 kΩ.
- What is the common mode voltage range of the LMV324MX?
The common mode voltage range is −0.2 V to V+ − 0.8 V.
- Can the LMV324MX drive capacitive loads directly?
Yes, it can directly drive 200 pF in unity-gain without oscillation.
- What are the typical applications of the LMV324MX?
It is used in active filters, general purpose low voltage applications, and general purpose portable devices.
- What are the available packages for the LMV324MX?
It is available in SOIC (14) and TSSOP (14) packages.
- Is the LMV324MX suitable for automotive applications?
Yes, it is available in automotive AEC-Q100 grade 1 and grade 3 versions.
