LM324DT

Instrumentation, Op Amps, Buffer Amps Overview

The LM324DT is a quad operational amplifier manufactured by ROHM Semiconductor, housed in a 14-pin SOIC surface-mount package. It features a gain-bandwidth product of 800 kHz and a slew rate of 300 mV/µs. The device operates on a single supply voltage ranging from 3 V to 32 V. Key electrical specifications include an input offset voltage of 1 mV, an input bias current of 20 nA, and a typical output current capability of 30 mA per channel. It supports ground sensing inputs and maintains operation within a temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad configuration with four independent high-gain operational amplifiers integrated into a single package.
• Ground-sense input capability allowing the common-mode input voltage range to extend to the negative power supply rail.
• Wide operating supply voltage range supporting both single-supply and dual-supply applications.
• Low power consumption design suitable for battery-operated systems.

Instrumentation, Op Amps, Buffer Amps Applications

• DC gain modules
• Sensor signal conditioning
• Transducer amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific manufacturer suffix associated with the part number, as ROHM, STMicroelectronics, and other vendors produce variants under similar naming conventions. Confirm that the component status is active for new designs, as some LM324 derivatives may be marked as not recommended for new use. Ensure the package type matches the required PCB footprint and verify RoHS compliance requirements for the specific order.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a quad amplifier with ground-sensing inputs is required for low-frequency signal processing. The wide supply voltage range makes it suitable for diverse power environments. Consider the 800 kHz bandwidth limit for application speed requirements. Verify thermal performance within the specified operating temperature range for the intended enclosure environment.

Instrumentation, Op Amps, Buffer Amps Part Context

The LM324 series represents a widely adopted family of low-power quad operational amplifiers. While originally developed by National Semiconductor, the designation is now used by multiple manufacturers including ROHM, STMicroelectronics, and Texas Instruments. These devices are standard general-purpose amplifiers known for their versatility in single-supply applications and cost-effective implementation in consumer electronics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LM324DTBR2G (onsemi)

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LM324DT support input signals at the negative rail?

Yes, the device features ground-sense inputs, allowing the common-mode input voltage range to include the negative power supply terminal.

What is the maximum supply voltage for this component?

The maximum supply voltage is 32 V for single-supply operation or ±16 V for dual-supply configurations.