Overview
The LM2904BTQDGKRQ1 is an automotive-grade, dual operational amplifier produced by Texas Instruments. It is part of the LM2904B-Q1 series, which has been qualified according to the AEC-Q100 specifications for use in automotive applications. This device features two high-voltage (36 V) operational amplifiers with enhanced characteristics such as low offset voltage, high differential input voltage capability, and internal RF and EMI filters. The LM2904BTQDGKRQ1 is designed to operate over a wide temperature range of –40°C to +125°C, making it suitable for rugged and environmentally challenging applications in the automotive sector.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | –40°C to +125°C | °C |
| Supply Voltage Range | 3 V to 36 V | V |
| Unity-Gain Bandwidth | 1.2 MHz | MHz |
| Input Offset Voltage (Typical) | 0.3 mV | mV |
| Input Offset Voltage (Maximum) | 3 mV at 25°C | mV |
| Quiescent Current per Channel (Typical) | 300 µA | µA |
| Common-Mode Input Voltage Range | V– to V+ – 1.5 V | V |
| Common-Mode Rejection Ratio (CMRR) | 65 dB to 80 dB | dB |
| Input Bias Current | –20 nA to –250 nA | nA |
| ESD Classification (HBM) | 2 kV | kV |
| Package Type | VSSOP (DGK) with 8 pins |
Key Features
- AEC Q-100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C.
- High ESD protection: 2 kV HBM and CDM ESD classification C5.
- Wide supply range of 3 V to 36 V.
- Low quiescent 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.
- Low input offset voltage of 0.3 mV (typical) and 3 mV (maximum) at 25°C.
- Internal RF and EMI filters for enhanced noise immunity.
- Functional Safety-Capable.
Applications
- Automotive lighting and body electronics.
- Automotive head units and telematics control units.
- Emergency call (eCall) systems.
- Passive safety systems, including brake systems.
- Electric vehicle and hybrid electric vehicle applications, such as inverter and motor control, on-board chargers (OBC), wireless chargers, and battery management systems (BMS).
Q & A
- What is the operating temperature range of the LM2904BTQDGKRQ1?
The operating temperature range is –40°C to +125°C.
- What is the supply voltage range for this operational amplifier?
The supply voltage range is from 3 V to 36 V.
- What is the typical input offset voltage of the LM2904BTQDGKRQ1?
The typical input offset voltage is 0.3 mV.
- What is the quiescent current per channel for this device?
The quiescent current per channel is typically 300 µA.
- Does the LM2904BTQDGKRQ1 have built-in EMI and RF filters?
- What are the common applications of the LM2904BTQDGKRQ1?
It is used in automotive lighting, body electronics, head units, telematics, emergency call systems, passive safety systems, and electric vehicle/hybrid electric vehicle systems.
- What is the ESD classification of the LM2904BTQDGKRQ1?
The device has an HBM ESD classification of 2 kV and a CDM ESD classification of C5.
- What package type is the LM2904BTQDGKRQ1 available in?
The device is available in a VSSOP (DGK) package with 8 pins.
- Is the LM2904BTQDGKRQ1 AEC-Q100 qualified?
- What is the unity-gain bandwidth of the LM2904BTQDGKRQ1?
The unity-gain bandwidth is 1.2 MHz.
