Texas Instruments

LM346MX/NOPB

LM346MX/NOPB Description

The LM346MX/NOPB is a general-purpose operational amplifier (op-amp) from Texas Instruments, featuring four independent circuits in a single 16SOIC package. This IC is designed for a wide range of applications requiring high performance and reliability. Despite its obsolete status, the LM346MX/NOPB remains a viable option for specific use cases where its unique features and performance benefits are essential.

LM346MX/NOPB Features

• Supply Voltage Range: The LM346MX/NOPB operates within a wide supply voltage range of 3 V to 44 V, making it suitable for various power supply configurations.
• Gain Bandwidth Product: With a gain bandwidth product of 1.2 MHz, this op-amp provides a good balance between gain and frequency response, ideal for applications requiring moderate bandwidth.
• Low Input Bias Current: The low input bias current of 50 nA ensures high input impedance, minimizing the loading effect on the signal source.
• Supply Current: Each of the four channels consumes only 1.4 mA, resulting in a total supply current of 5.6 mA, which is efficient for low-power applications.
• Output Current: Each channel can deliver up to 20 mA, providing sufficient drive capability for various loads.
• Voltage Offset: The input offset voltage is maintained at 500 µV, ensuring accurate signal processing and minimal error.
• Slew Rate: The slew rate of 0.4 V/µs allows for fast transient response, suitable for applications requiring quick signal changes.
• Compliance: The LM346MX/NOPB is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), this IC is suitable for a wide range of manufacturing environments without the need for special handling.
• Operating Temperature: The operating temperature range of 0°C to 70°C makes it suitable for general-purpose applications in moderate environments.

LM346MX/NOPB Applications

The LM346MX/NOPB is ideal for a variety of applications, including:

• Signal Conditioning: Its low input bias current and voltage offset make it suitable for precision signal conditioning in sensors and transducers.
• Audio Circuits: The moderate bandwidth and slew rate are well-suited for audio amplification and processing applications.
• General-Purpose Amplification: The four independent circuits allow for multiple signal processing paths in a compact form factor, ideal for multi-channel systems.
• Power Management: The low supply current and efficient power handling make it suitable for battery-operated devices and power management circuits.

Conclusion of LM346MX/NOPB

The LM346MX/NOPB, despite being obsolete, remains a robust choice for applications requiring a general-purpose op-amp with multiple circuits. Its wide supply voltage range, low input bias current, and moderate bandwidth make it versatile for various electronic systems. The low supply current and efficient power handling further enhance its suitability for low-power applications. While newer models may offer advanced features, the LM346MX/NOPB's reliability and performance continue to make it a valuable component in the electronics industry.