LM324MT/NOPB

Instrumentation, Op Amps, Buffer Amps Overview

The LM324MT/NOPB is a low-power quad operational amplifier manufactured by Texas Instruments. It integrates four independent, high-gain, internally frequency-compensated amplifiers designed for single-supply operation across a wide voltage range of 3 V to 32 V, or dual supplies of ±1.5 V to ±16 V. Key electrical specifications include a gain-bandwidth product of 1.2 MHz, a slew rate of 500 mV/µs, and an input offset voltage of 7 mV. The device features rail-to-rail input capability including ground, a common-mode rejection ratio of 80 dB, and operates within a commercial temperature range of 0°C to +70°C. It is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with surface-mount installation.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates four independent operational amplifiers with internal frequency compensation for stability without external components.
• Supports single-supply operation from 3 V to 32 V, eliminating the need for dual power sources in many applications.
• Input common-mode voltage range includes ground, allowing direct sensing near zero volts.
• Low power consumption remains relatively constant regardless of supply voltage variations.

Instrumentation, Op Amps, Buffer Amps Applications

• Sensor signal amplification
• DC gain blocks
• Active filters
• Transducer amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package variant against design requirements, as the LM324 series includes DIP, SOIC, and TSSOP options. Confirm that the commercial temperature grade (0°C to +70°C) meets environmental constraints. Ensure the NOPB suffix indicates lead-free and RoHS compliance status required for the target assembly process. Cross-reference pinouts if substituting from other manufacturers.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a cost-effective, low-power quad amplifier is needed for single-supply systems. It is suitable for general-purpose analog signal processing where moderate bandwidth and precision are sufficient. Consider alternative packages like LM324N for through-hole designs or LM324DR for standard SOIC needs if TSSOP availability is limited. Verify that the 7 mV input offset voltage meets system accuracy requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

The LM324 family represents a widely used line of low-power quad operational amplifiers originally developed by National Semiconductor and now maintained by Texas Instruments. The LM324MT/NOPB specifically denotes the thin shrink small outline package variant with lead-free termination. This series is known for its versatility in consumer electronics and industrial control due to its ability to operate efficiently on single supplies while maintaining compatibility with standard logic families.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LM324DR: Standard SOIC-14 package version of the same electrical specification. LM324N: PDIP-14 through-hole package equivalent. LM2902-N: Pin-compatible quad op-amp with improved offset voltage characteristics. LM324A: Higher precision variant with lower input offset voltage.