Texas Instruments

LM321MF  

OP Amps, Buffer Amps ICs

LM321MF Description

The LM321MF is a general-purpose operational amplifier (op-amp) designed for a wide range of analog signal processing applications. Manufactured by Texas Instruments, this op-amp is housed in a compact SOT23-5 package, making it suitable for surface-mount applications where space is at a premium. The LM321MF offers a broad supply voltage range, from 3 V to 30 V, allowing it to be used in both low-voltage and high-voltage systems. Its gain bandwidth product of 1 MHz and slew rate of 0.4 V/µs ensure stable and reliable performance across various operating conditions. With an input bias current of 45 nA and an input offset voltage of 2 mV, the LM321MF provides high accuracy and low noise in signal amplification. The device is also RoHS3 compliant and REACH affected, adhering to environmental and regulatory standards.

LM321MF Features

• Wide Supply Voltage Range: The LM321MF operates over a supply voltage range of 3 V to 30 V, making it versatile for different power supply environments.
• High Gain Bandwidth Product: With a gain bandwidth product of 1 MHz, the LM321MF ensures high-frequency performance and stability in signal processing.
• Low Input Bias Current: The low input bias current of 45 nA minimizes loading effects on the input signal, preserving signal integrity.
• Low Input Offset Voltage: The input offset voltage of 2 mV ensures high accuracy in signal amplification, reducing errors in precision applications.
• High Slew Rate: The slew rate of 0.4 V/µs allows the op-amp to handle fast-changing signals without distortion.
• Low Supply Current: The device consumes only 660 µA of supply current, making it energy-efficient and suitable for battery-powered applications.
• High Output Current: The LM321MF can deliver up to 40 mA of output current per channel, enabling it to drive various loads effectively.
• Surface-Mount Package: The SOT23-5 package is ideal for surface-mount technology (SMT), facilitating easy integration into compact and high-density PCB designs.
• Environmental Compliance: The LM321MF is RoHS3 compliant and REACH affected, ensuring it meets environmental and regulatory standards.

LM321MF Applications

The LM321MF is well-suited for a variety of applications due to its general-purpose design and robust performance characteristics. Some specific use cases include:

• Signal Conditioning: The LM321MF can be used to amplify and condition weak signals from sensors, ensuring they are suitable for further processing or transmission.
• Analog Filters: Its wide supply voltage range and gain bandwidth product make it ideal for designing active filters in signal processing circuits.
• Power Amplifiers: The high output current capability allows the LM321MF to be used in small power amplifiers for driving speakers or other audio devices.
• Voltage Regulators: The device can be configured as a voltage regulator to provide stable power supply voltages to sensitive electronics.
• Precision Measurements: The low input offset voltage and bias current make the LM321MF suitable for precision measurement applications where accuracy is critical.
• Consumer Electronics: The compact SOT23-5 package and low supply current make it ideal for consumer electronics where space and power consumption are constraints.

Conclusion of LM321MF

The LM321MF is a versatile and reliable general-purpose operational amplifier that offers a combination of high performance and environmental compliance. Its wide supply voltage range, low input bias current, and high slew rate make it suitable for a variety of applications, from signal conditioning to power amplification. The compact SOT23-5 package and surface-mount technology ensure easy integration into modern electronic designs. With its RoHS3 compliance and REACH status, the LM321MF also meets important environmental and regulatory standards. Overall, the LM321MF is an excellent choice for engineers seeking a robust and flexible op-amp solution for their analog signal processing needs.

LM321MF Documents

Download datasheets and manufacturer documentation for LM321MF

EOL :

Product Discontinuance Notification (PDF)      

Images :

Mechanical Outline Drawing      

PCN :

Process Change Notification (PDF)       PROCESS CHANGE NOTIFICATION (PDF)       Product Change Notification (PDF)      

Models :

LMx58_LM2904 PSPICE Model (Rev. A)       LMx58_LM2904 TINA-TI Macro       LM321MF Symbol & Footprint by SnapMagic      

Application Notes :

Microvolt Comparator       AN-161 IC Voltage Reference has 1 ppm per Degree Drift (Rev. C)      

Technical Resources :

LMx58_LM2904 Reference Design      

SPICE Models :

LM321 PSPICE Model