Overview
The LM2904QD is a dual operational amplifier designed and manufactured by Texas Instruments. Although the LM2904QD is now obsolete and has been replaced by the LM2904D, it was widely used in various applications due to its robust features and compliance with automotive standards. The LM2904 series operational amplifiers are industry-standard devices known for their high performance and reliability in a wide range of operating conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range (Single Supply) | 3 to 36 | V |
| Supply Voltage Range (Dual Supplies) | ±1.5 to ±18 | V |
| Supply Current | 500 µA (typical) | µA |
| Input Offset Voltage (Non-A Version) | 3 mV (typical) | mV |
| Input Offset Voltage (A Version) | 2 mV (typical) | mV |
| Input Bias Current | 20 nA (typical) | nA |
| Unity-Gain Bandwidth | 700 kHz (temperature compensated) | kHz |
| Common-Mode Input Voltage Range | Includes ground | |
| Differential Input Voltage Range | Equal to power supply voltage | |
| Package Type | SO-8, TSSOP-8, MSOP-8 |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C
- Wide power supply voltage range: 3 V to 36 V (single supply) and ±1.5 V to ±18 V (dual supplies)
- Low supply current drain independent of supply voltage: 500 µA (typical)
- Low input offset voltage: 2 mV (A version) and 3 mV (non-A version) at 25°C
- Common-mode input voltage range includes ground, enabling direct sensing near ground
- High differential input voltage capability equal to the power supply voltage
- Internal frequency compensation and unity-gain stability
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free, “green” device
Applications
The LM2904QD operational amplifiers are suitable for a variety of applications, including:
- Transducer amplifiers
- DC amplification blocks
- Conventional operational amplifier circuits in single-supply voltage systems
- Automotive systems due to their AEC-Q100 qualification and wide operating temperature range
- Interface electronics in digital systems, such as those requiring direct sensing near ground
Q & A
- What is the operating temperature range of the LM2904QD?
The operating temperature range is –40°C to +125°C.
- What is the supply voltage range for the LM2904QD?
The supply voltage range is 3 V to 36 V for single supply and ±1.5 V to ±18 V for dual supplies.
- What is the typical supply current of the LM2904QD?
The typical supply current is 500 µA.
- What is the input offset voltage of the LM2904QD?
The input offset voltage is 2 mV for A versions and 3 mV for non-A versions at 25°C.
- Does the LM2904QD have internal frequency compensation?
- Is the LM2904QD RoHS compliant?
- What are the common applications of the LM2904QD?
The LM2904QD is used in transducer amplifiers, DC amplification blocks, conventional operational amplifier circuits, and automotive systems.
- Why is the LM2904QD suitable for automotive applications?
- What is the differential input voltage range of the LM2904QD?
- Is the LM2904QD obsolete?
