Overview
The LM2902DG4, manufactured by Texas Instruments, is a quad operational amplifier designed for a wide range of applications. This component is part of the LM2902 series, known for its low power consumption and high gain. The LM2902DG4 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) tube, making it suitable for surface mount applications. Introduced in 1975, this amplifier has been widely used in commercial, industrial, and military applications due to its robust performance and versatility.
The device consists of four independent high-gain frequency-compensated operational amplifiers. It can operate from a single supply voltage ranging from 3 V to 26 V or from dual supplies with a difference of 3 V to 26 V. The LM2902DG4 is notable for its low supply-current drain, which is independent of the supply voltage, and its ability to handle common-mode input voltages that include ground, allowing direct sensing near ground.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package / Case | 14-SOIC (0.154, 3.90mm Width) | |
| Number of Pins | 14 | |
| Operating Temperature | -40°C to 125°C | °C |
| Supply Voltage (Single/Dual) | 3 V to 26 V / ±1.5 V to ±13 V | V |
| Operating Supply Current | 1.4 mA (Typical) | mA |
| Output Current per Channel | 30 mA (Typical) | mA |
| Slew Rate | 0.5 V/μs (Typical) | V/μs |
| Input Offset Voltage (Vos) | 7 mV (Typical) | mV |
| Bandwidth | 1.2 MHz (Typical) | MHz |
| Common Mode Rejection Ratio (CMRR) | 50 dB (Typical) | dB |
| Input Bias Current | 20 nA (Typical) | nA |
Key Features
- Low Power Consumption: The LM2902DG4 has a low supply-current drain, independent of the supply voltage, making it energy-efficient.
- Wide Supply Voltage Range: It can operate from a single supply voltage of 3 V to 26 V or from dual supplies with a difference of 3 V to 26 V.
- High Gain: The device features high-gain frequency-compensated operational amplifiers.
- Common-Mode Input Voltage Range: Includes ground, allowing direct sensing near ground.
- Low Input Bias and Offset Parameters: Low input offset voltage (7 mV typical) and low input bias current (20 nA typical).
- Internal Frequency Compensation: Ensures stable operation without the need for external compensation components.
- Surface Mount Package: Packaged in a 14-pin SOIC tube, suitable for surface mount applications.
Applications
The LM2902DG4 is versatile and can be used in a variety of applications, including:
- Commercial and Industrial Equipment: Due to its robust performance and wide supply voltage range, it is suitable for various industrial and commercial applications.
- Military Applications: Its reliability and performance make it a candidate for military equipment.
- Audio and Signal Processing: The high gain and low noise characteristics make it suitable for audio and signal processing applications.
- Medical Devices: Its low power consumption and high accuracy make it a good choice for medical devices.
- Automotive Systems: Although not specifically automotive-qualified, its robustness can be beneficial in certain automotive applications.
Q & A
- What is the package type of the LM2902DG4?
The LM2902DG4 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) tube.
- What is the operating temperature range of the LM2902DG4?
The operating temperature range is -40°C to 125°C.
- What are the supply voltage ranges for the LM2902DG4?
The device can operate from a single supply voltage of 3 V to 26 V or from dual supplies with a difference of 3 V to 26 V.
- What is the typical output current per channel for the LM2902DG4?
The typical output current per channel is 30 mA.
- What is the slew rate of the LM2902DG4?
The slew rate is 0.5 V/μs (typical).
- What is the common-mode rejection ratio (CMRR) of the LM2902DG4?
The CMRR is 50 dB (typical).
- Is the LM2902DG4 RoHS compliant?
Yes, the LM2902DG4 is RoHS compliant.
- What is the input offset voltage of the LM2902DG4?
The input offset voltage is 7 mV (typical).
- Can the LM2902DG4 operate from a single supply voltage?
Yes, it can operate from a single supply voltage ranging from 3 V to 26 V.
- What are some common applications of the LM2902DG4?
Common applications include commercial and industrial equipment, military applications, audio and signal processing, medical devices, and certain automotive systems.
