Overview
The LMV324A-Q1 is a quad-channel, low-voltage operational amplifier (op amp) designed by Texas Instruments. This device is part of the LMV3xxA-Q1 family, which includes single, dual, and quad-channel configurations. The LMV324A-Q1 is optimized for automotive applications, meeting the AEC-Q100 grade 1 standards with a temperature range of –40°C to +125°C. It is ideal for space-constrained applications requiring low-voltage operation and high capacitive-load drive capabilities.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.5 | - | 5.5 | V |
| Input Offset Voltage (VOS) | ±1 | - | ±4 | mV |
| Common-Mode Voltage Range (VCM) | (V–) – 0.1 | - | (V+) – 1 | V |
| Gain-Bandwidth Product (GBW) | 1 | - | - | MHz |
| Slew Rate (SR) | 1.7 | - | - | V/µs |
| Quiescent Current per Amplifier (IQ) | 70 | - | 125 | µA |
| Output Voltage Swing (VO) | 20 | - | 50 | mV |
| Short-Circuit Current (ISC) | ±40 | - | - | mA |
| Open-Loop Output Impedance (ZO) | 1200 | - | - | Ω |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C.
- Low input offset voltage: ±1 mV.
- Rail-to-rail output swing.
- Unity-gain bandwidth: 1 MHz.
- Low broadband noise: 30 nV/√Hz.
- Low input bias current: 10 pA.
- Low quiescent current: 70 µA/Ch.
- Unity-gain stable.
- Internal RFI and EMI filter.
- Operational at supply voltages as low as 2.5 V.
- Easier stabilization with higher capacitive load due to resistive open-loop output impedance.
Applications
- Infotainment and cluster systems.
- Passive safety systems.
- Body electronics and lighting.
- HEV/EV inverter and motor control.
- On-board (OBC) and wireless chargers.
- Powertrain current sensors.
- Advanced driver assistance systems (ADAS).
- Single-supply, low-side, unidirectional current-sensing circuits.
Q & A
- What is the temperature range of the LMV324A-Q1?
The LMV324A-Q1 operates over a temperature range of –40°C to +125°C.
- What is the supply voltage range for the LMV324A-Q1?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the gain-bandwidth product of the LMV324A-Q1?
The gain-bandwidth product is 1 MHz.
- Is the LMV324A-Q1 AEC-Q100 qualified?
Yes, the LMV324A-Q1 is AEC-Q100 qualified for automotive applications.
- What is the typical quiescent current per amplifier?
The typical quiescent current per amplifier is 70 µA.
- Does the LMV324A-Q1 have internal RFI and EMI filtering?
Yes, the LMV324A-Q1 has internal RFI and EMI filtering.
- What is the maximum short-circuit current?
The maximum short-circuit current is ±40 mA.
- What are some common applications of the LMV324A-Q1?
Common applications include infotainment systems, passive safety systems, body electronics, and advanced driver assistance systems (ADAS).
- What is the typical slew rate of the LMV324A-Q1?
The typical slew rate is 1.7 V/µs.
- What is the output voltage swing from the supply rails?
The output voltage swing from the supply rails is typically 20 mV to 50 mV.
