LM2902N

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LM2902N

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Specifications

Attribute Value
Package / Case Tube,Tube
Series Automotive, AEC-Q100
Part Status Obsolete
Amplifier Type General Purpose
Number of Circuits 4
Output Type Differential
Slew Rate 0.4V/µs
Gain Bandwidth Product 1 MHz
Current - Input Bias 20 nA
Voltage - Input Offset 2 mV
Supply Current 1.5mA (x4 Channels)
Current - Output / Channel 40 mA
Voltage - Supply Span(Min) 3 V
Voltage - Supply Span(Max) 30 V
Operating Temperature -40°C ~ 125°C
Mounting Type Through Hole

Overview

Description

The LM2902N is a quad operational amplifier (op-amp) designed for a wide range of applications. It is part of the LM2902 series, which offers four independent, high-gain, internally frequency-compensated op-amps in a single package. This device is widely used due to its versatility, low power consumption, and ability to operate from a single power supply, making it suitable for battery-powered applications.
Key features of the LM2902N include a wide supply voltage range (typically from 3V to 32V), low input offset voltage, and low input bias current. It can handle both single and dual power supplies, enhancing design flexibility. The device is commonly available in a 14-pin dual in-line package (DIP) and is pin-compatible with typical quad op-amps, facilitating easy integration into existing systems.
Applications of the LM2902N include signal conditioning, sensor interfacing, voltage comparison, and analog filtering. Its reliability and performance make it a staple in both commercial and industrial electronic designs.

Equivalent

The LM2902N is a quad operational amplifier. Equivalent products include the LM324 LM324N, LM2902, and TL084. These chips offer similar functionality with slight variations in specifications like power supply range, input offset voltage, and bandwidth. Always check the datasheet for compatibility with your specific application requirements.

Features

The LM2902N is a quad operational amplifier, featuring four independent, high-gain, internally frequency-compensated op-amps designed to operate from a single power supply over a wide voltage range. Key features include:
1. Wide Supply Voltage Range: It operates on a single power supply ranging from 3V to 32V or dual supplies from ±1.5V to ±16V.
2. Low Supply Current: The op-amp is efficient with a low quiescent current drain, independent of the supply voltage.
3. Wide Bandwidth: It has a medium bandwidth of 1.2 MHz, suitable for various applications.
4. Low Input Offset Voltage: Typically around 3 mV, which helps in precision applications.
5. High Input Impedance: Ensures minimal loading on the preceding stage.
6. Output Voltage Swing: The output can swing close to the ground, enabling near-ground level signal processing.
7. Internally Frequency Compensated: Simplifies circuit design by eliminating the need for external compensation.
8. Temperature Range: Operates well within the temperature range of -40°C to +85°C, suitable for industrial applications.
These features make the LM2902N versatile for applications such as signal conditioning, filtering, and small-signal amplification.

Pinout

The LM2902N is a quad operational amplifier, meaning it contains four independent op-amps in a single package. It is commonly used for general-purpose amplifier functions. The device is housed in a 14-pin dual in-line package (DIP). Here is a brief overview of the pin functions:
1. Pin 1 (Output 1): Output of Op-Amp 1.
2. Pin 2 (Inverting Input 1, In-1): Inverting input of Op-Amp 1.
3. Pin 3 (Non-Inverting Input 1, In+1): Non-inverting input of Op-Amp 1.
4. Pin 4 (VCC+): Positive power supply voltage.
5. Pin 5 (Non-Inverting Input 2, In+2): Non-inverting input of Op-Amp 2.
6. Pin 6 (Inverting Input 2, In-2): Inverting input of Op-Amp 2.
7. Pin 7 (Output 2): Output of Op-Amp 2.
8. Pin 8 (Output 3): Output of Op-Amp 3.
9. Pin 9 (Inverting Input 3, In-3): Inverting input of Op-Amp 3.
10. Pin 10 (Non-Inverting Input 3, In+3): Non-inverting input of Op-Amp 3.
11. Pin 11 (VCC-): Negative power supply voltage (or ground).
12. Pin 12 (Non-Inverting Input 4, In+4): Non-inverting input of Op-Amp 4.
13. Pin 13 (Inverting Input 4, In-4): Inverting input of Op-Amp 4.
14. Pin 14 (Output 4): Output of Op-Amp 4.
The LM2902N is suitable for a wide range of applications, including signal conditioning and analog computation.

Manufacturer

The LM2902N is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is well known for its analog chips and embedded processors, which are used in a wide variety of electronics applications including industrial, automotive, personal electronics, and communications equipment. Texas Instruments is one of the largest semiconductor companies in the world and plays a significant role in the electronics and technology industry.

Application

The LM2902N is a quad operational amplifier commonly used in various applications due to its versatility and low power consumption. Key application areas include signal conditioning, where it amplifies or filters input signals, and sensor interfacing, particularly in automotive and industrial sensors. It's also used in voltage comparison, making it ideal for comparator circuits, and in control systems for processes and automation tasks. Additionally, the LM2902N is employed in audio processing circuits, providing amplification in audio devices. Its capability to operate on a wide voltage range makes it suitable for battery-powered devices and power management systems.

Package

The LM2902N is a quad operational amplifier integrated circuit that comes in a Dual In-line Package (DIP) type. Specifically, it is available in a 14-pin DIP, which is suitable for through-hole mounting on printed circuit boards.