LM2902MX/NAK2

Instrumentation, Op Amps, Buffer Amps Overview

The LM2902MX/NAK2 is a quad operational amplifier from the LM2902B family, manufactured by Texas Instruments. It features four high-voltage amplifiers with a supply voltage range of 3V to 36V and an operating temperature range of -40°C to +125°C. Key electrical specifications include a maximum input offset voltage of ±3mV at 25°C, a gain-bandwidth product of 1.2MHz, and a slew rate of 0.5V/µs. The device offers low quiescent current (typical 240µA per amplifier), high ESD protection (2kV HBM), and integrated EMI/RF filtering.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated RF and EMI filter for improved noise immunity in challenging environments
• High electrostatic discharge (ESD) robustness rated at 2kV human-body model
• Common-mode input voltage range includes ground (V-)
• Drop-in replacement for legacy LM224, LM324, and LM2902 devices

Instrumentation, Op Amps, Buffer Amps Applications

• Merchant network and server power supply units
• Multi-function printers
• Power supplies and mobile chargers
• Desktop PC and motherboard circuits
• Indoor and outdoor air conditioners

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'NAK2' against the manufacturer's official orderable part list to confirm package type and tape/reel configuration. Ensure the component meets the required industrial temperature grade (-40°C to +125°C) and that the B-version specifications align with the design requirements for offset voltage and bias current.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when upgrading from standard LM2902 devices to benefit from improved offset voltage and lower bias current. It is suitable for cost-sensitive applications requiring high differential input voltage capability and rail-to-rail common-mode input performance. Consider the BA version if a tighter offset voltage specification of ±2mV is necessary.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the LMx24/LM2902 family of quadruple operational amplifiers. It represents the next-generation B-series iteration, designed to replace industry-standard LM324 and LM2902 parts. The family includes variants like LM2902BA and LM2902KV, offering different trade-offs between offset voltage, temperature range, and packaging options.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LM2902B

Instrumentation, Op Amps, Buffer Amps FAQ

What is the maximum supply voltage for the LM2902B series?

The LM2902B series supports a supply voltage range from 3V to 36V.

Does the LM2902B support single-supply operation?

Yes, the common-mode input voltage range includes V-, allowing for single-supply operation where the negative supply is connected to ground.