LM2900NE4

Overview

The LM2900NE4 is a quad Norton operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 2.5 MHz and a slew rate of 20 V/us. The input bias current is specified at 200 nA, with a typical power supply rejection ratio of 70 dB. Operating from a single supply, the minimum voltage is 2.2 V and the maximum is 16 V. The device draws 1.55 mA of operating current and functions within a temperature range of 0°C to +70°C. It is housed in a PDIP-14 package.

Feature Summary

• Integrates four independent Norton amplifiers for multi-channel signal processing
• Designed for single-supply operation to simplify circuit power requirements
• Utilizes bipolar technology for robust analog performance

Applications

• General-purpose analog signal conditioning circuits
• Audio pre-amplification stages
• Sensor interface applications requiring multiple amplification channels

Procurement Notes

Verify the component authenticity by checking the manufacturer marking against official datasheet specifications. Confirm the package type matches the required PCB footprint. Ensure the temperature grade aligns with the intended operational environment. Cross-reference the ordering suffix with the specific variant documentation to guarantee functional compatibility.

Selection Notes

Select this component when multiple low-cost amplification channels are needed on a single integrated circuit. It serves as a suitable alternative to standard op-amps in applications where high precision is not critical but cost efficiency and channel density are priorities. Consider the Norton topology characteristics regarding input impedance and feedback requirements during design.

Part Context

The LM2900 belongs to the LM3900 family of quadruple Norton operational amplifiers. This series is characterized by its ability to operate effectively with single-ended supplies. The NE4 designation typically indicates a specific tape-and-reel or tube packaging variation compliant with environmental standards, distinguishing it from other package options like the standard N suffix.

Replacement Considerations

LM2900N

FAQ

What is the difference between the LM2900 and standard operational amplifiers?

The LM2900 uses Norton (current-mode) architecture rather than voltage-mode, which affects input impedance and feedback configuration compared to standard voltage-feedback op-amps.

Does the LM2900 support dual-supply operation?

While designed primarily for single-supply operation starting at 2.2V, it can function with dual supplies within the specified maximum voltage limits of ±8V.