Overview
The LM2904BA-Q1 is an industry-standard operational amplifier designed and qualified for automotive applications by Texas Instruments. It is part of the next-generation series of the LM2904-Q1, offering enhanced features and robust performance. This dual operational amplifier is AEC Q-100 qualified, ensuring it meets stringent automotive standards. It operates over a wide supply range of 3 V to 36 V and is known for its low input offset voltage, high differential input voltage capability, and integrated RF and EMI filters. These features make it an ideal choice for cost-sensitive applications in the automotive sector.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 3 | - | 36 | V |
| Input Offset Voltage (VOS) | - | 0.3 | 2 | mV |
| Supply Current per Channel | - | 300 | - | µA |
| Unity-Gain Bandwidth | - | 1.2 | - | MHz |
| Common-Mode Input Voltage Range | (V–) | - | (V+) - 1.5 | V |
| Operating Ambient Temperature (TA) | -40 | - | 125 | °C |
| ESD Classification (HBM) | - | - | 2 kV | - |
| ESD Classification (CDM) | - | - | C5 | - |
Key Features
- AEC Q-100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C.
- Wide supply range of 3 V to 36 V.
- Low input offset voltage of 2 mV at 25°C (maximum).
- Supply current of 300 µA per channel (typical).
- Unity-gain bandwidth of 1.2 MHz.
- Common-mode input voltage range includes ground, enabling direct sensing near ground.
- Internal RF and EMI filters.
- Functional Safety-Capable.
- High ESD (2 kV, HBM) and CDM ESD classification C5.
Applications
- Automotive lighting.
- Body electronics.
- Automotive head unit.
- Telematics control unit.
- Emergency call (eCall).
- Passive safety: brake system.
- Electric vehicle / hybrid electric: inverter and motor control, on-board (OBC) and wireless charger, battery management system (BMS).
Q & A
- What is the operating temperature range of the LM2904BA-Q1?
The operating temperature range is –40°C to +125°C.
- What is the supply voltage range for the LM2904BA-Q1?
The supply voltage range is 3 V to 36 V.
- What is the typical input offset voltage of the LM2904BA-Q1?
The typical input offset voltage is 0.3 mV, with a maximum of 2 mV at 25°C.
- What is the unity-gain bandwidth of the LM2904BA-Q1?
The unity-gain bandwidth is 1.2 MHz.
- Does the LM2904BA-Q1 have integrated EMI and RF filters?
- What are the ESD classifications for the LM2904BA-Q1?
The device has an HBM ESD classification of 2 kV and a CDM ESD classification of C5.
- Is the LM2904BA-Q1 qualified for automotive use?
- What are some common applications of the LM2904BA-Q1?
- What is the typical supply current per channel for the LM2904BA-Q1?
- Does the LM2904BA-Q1 support functional safety?
