onsemi

LM2904NG

LM2904NG Description

The LM2904NG from onsemi is a general-purpose dual operational amplifier designed for a wide range of analog applications. Housed in an 8-pin DIP package, this IC operates over a broad supply voltage range of 3V to 26V, making it suitable for both low-voltage and industrial-level designs. With a gain bandwidth product of 1 MHz and low input bias current (45 nA), it delivers stable performance in precision circuits. The device features low supply current consumption (800µA per channel) and a high output current capability (40 mA per channel), ensuring efficient operation in power-sensitive systems. Although marked as obsolete, it remains a reliable choice for legacy designs due to its robustness and proven performance.

LM2904NG Features

• Wide Supply Voltage Range: 3V to 26V, accommodating diverse power requirements.
• Low Power Consumption: 800µA per channel, ideal for battery-operated devices.
• High Output Drive: 40 mA per channel for driving loads like relays or LEDs.
• Low Input Offset Voltage (2 mV): Enhances accuracy in signal conditioning.
• Gain Bandwidth Product (1 MHz): Suitable for low-frequency amplification tasks.
• Through-Hole Mounting (DIP): Simplifies prototyping and repair.
• REACH Unaffected & EAR99 Compliance: Meets environmental and export control standards.

LM2904NG Applications

The LM2904NG excels in:

• Sensor Signal Conditioning: Amplifying outputs from thermocouples, strain gauges, or pressure sensors.
• Power Management: Voltage regulation, current sensing, and battery monitoring.
• Industrial Control Systems: Motor drivers, PLCs, and instrumentation amplifiers.
• Consumer Electronics: Audio preamps, signal filters, and comparator circuits.
• Automotive Systems: Engine control units (ECUs) and dashboard instrumentation.

Conclusion of LM2904NG

The LM2904NG is a versatile, low-cost operational amplifier offering balanced performance in precision and power efficiency. Its wide voltage range, low noise, and high output drive make it a preferred choice for industrial, automotive, and consumer applications. While newer alternatives exist, its proven reliability and ease of integration ensure continued relevance in legacy and cost-sensitive designs. For engineers seeking a robust, general-purpose op-amp, the LM2904NG remains a dependable solution.