Overview
The LMV324QDG4 is a quad low-voltage operational amplifier produced by Texas Instruments. It is part of the LMV324 series, designed for operation within a voltage range of 2.7 V to 5.5 V, making it suitable for low-voltage applications. This device is known for its rail-to-rail output swing, low supply current, and high performance, comparable to or exceeding that of the LM358 and LM324 devices. The LMV324QDG4 is available in various package options, including SOIC and TSSOP, making it versatile for different design needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Supply Voltage Range | 2.7 to 5.5 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Current (Typical) | 410 | μA |
| Unity-Gain Bandwidth | 1 MHz | |
| Phase Margin | 60 deg | |
| Gain Margin | 10 dB | |
| Equivalent Input Noise Voltage | 39 nV/√Hz | |
| Equivalent Input Noise Current | 0.21 pA/√Hz | |
| Slew Rate | 1 V/μs | |
| Output Current (Typical) | 60 mA | |
| ESD Protection | 2000 V (HBM), 1000 V (CDM) |
Key Features
- Rail-to-rail output swing for maximum signal range.
- Low supply current: 410 μA (typical) for all four amplifiers.
- No crossover distortion.
- High ESD protection: exceeds JESD 22 – 2000-V human-body model and 1000-V charged-device model.
- Compact package options: SOIC and TSSOP, reducing space requirements.
- Wide operating temperature range: -40°C to 125°C.
- Shutdown feature (logic low for shutdown, logic high for enable) available on some packages.
Applications
- Desktop PCs and net-books.
- HVAC systems: heating, ventilating, and air conditioning.
- Motor control: AC induction motors.
- Portable media players.
- Telecom DC/DC modules: digital power supplies.
- Professional audio mixers.
- Refrigerators and washing machines (both high-end and low-end models).
Q & A
- What is the operating voltage range of the LMV324QDG4?
The LMV324QDG4 operates within a voltage range of 2.7 V to 5.5 V.
- How many channels does the LMV324QDG4 have?
The LMV324QDG4 is a quad operational amplifier, meaning it has four channels.
- What is the typical supply current for the LMV324QDG4?
The typical supply current for the LMV324QDG4 is 410 μA for all four amplifiers.
- What is the unity-gain bandwidth of the LMV324QDG4?
The unity-gain bandwidth of the LMV324QDG4 is 1 MHz.
- Does the LMV324QDG4 have ESD protection?
Yes, the LMV324QDG4 has high ESD protection, exceeding JESD 22 – 2000-V human-body model and 1000-V charged-device model.
- What are the package options available for the LMV324QDG4?
The LMV324QDG4 is available in SOIC and TSSOP packages.
- What is the operating temperature range of the LMV324QDG4?
The operating temperature range of the LMV324QDG4 is -40°C to 125°C.
- Does the LMV324QDG4 have a shutdown feature?
Yes, some packages of the LMV324QDG4 include a shutdown feature (logic low for shutdown, logic high for enable).
- What are some common applications of the LMV324QDG4?
The LMV324QDG4 is used in various applications including desktop PCs, HVAC systems, motor control, portable media players, telecom DC/DC modules, professional audio mixers, refrigerators, and washing machines.
- How does the LMV324QDG4 compare to other operational amplifiers like the LM358 and LM324?
The LMV324QDG4 has performance specifications that meet or exceed those of the LM358 and LM324, but it operates at lower voltages (2.7 V to 5.5 V) and has lower supply current.
