LM2904A-SR

Overview

The LM2904A-SR is a dual general-purpose operational amplifier manufactured by 3PEAK, housed in an SOP8 surface-mount package. It operates within a supply voltage range of 3 V to 36 V or ±1.5 V to ±18 V. The device features a gain-bandwidth product of 0.9 MHz and a slew rate of 0.5 V/μs. Quiescent current is specified at 100 μA per channel. Input offset voltage is typically 0.1 mV with a maximum drift of 7 μV/°C. The input common-mode voltage range includes ground, and the output provides rail-to-rail swing capabilities.

Feature Summary

• Rail-to-rail output capability allows full signal swing across the operating range.
• Input common-mode voltage range extends to the negative supply rail (ground).
• Low quiescent current consumption of 100 μA per channel for power efficiency.
• High electromagnetic interference rejection performance rated at 71 dB at 1 GHz.

Applications

• Power module signal conditioning
• Sensor interface circuits
• Motor control systems
• Audio processing applications

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the SR designation corresponds to the SOP8 form factor. Confirm environmental compliance status, noting that this component is defined as Green, meaning it is RoHS compatible and free of halogen substances. Ensure the selected variant meets the required operating temperature range of -40°C to 125°C for the intended application environment.

Selection Notes

Select this component when single-supply operation near ground is required due to its input common-mode range including the negative rail. The rail-to-rail output makes it suitable for low-voltage logic interfacing. Consider the 0.9 MHz bandwidth and 0.5 V/μs slew rate for moderate-speed signal amplification tasks where low power consumption is a priority over high-speed performance.

Part Context

This part belongs to the LM2904A/LM2902A series of high-supply voltage amplifiers from 3PEAK. The series utilizes proprietary design techniques to achieve stable frequency response and low offset characteristics. The LM2904A specifically integrates two independent amplifiers, whereas the LM2902A variant contains four channels in a larger package.

Replacement Considerations

LM2904A-SR serves as a plug-in replacement for commercially available op amps to reduce power and improve input/output range. Verify pin compatibility and electrical specifications against legacy designs before substitution.

FAQ

Does the LM2904A-SR support single-supply operation?

Yes, the device supports single-supply operation with a voltage range of 3 V to 36 V.

What is the input common-mode voltage range?

The input common-mode voltage range includes the negative supply rail (−VS), allowing sensing near ground.