LM321AW-S5TR

Overview

The LM321AW-S5TR is a single-channel operational amplifier from the LM321A series, manufactured by 3PEAK. It operates on a supply voltage range of 3 V to 36 V with a quiescent current of 100 μA per channel. The device features a gain-bandwidth product of 0.9 MHz and a slew rate of 0.5 V/μs. Input offset voltage is limited to ±3 mV maximum, with a temperature drift of 7 μV/°C. It supports rail-to-rail output and includes an input common-mode voltage range that extends to the negative supply rail. The component is housed in a SOT23-5 package and functions within an operating temperature range of –40°C to 125°C.

Feature Summary

• Rail-to-rail output capability with input common-mode voltage range extending to the negative supply rail
• Low power consumption with a quiescent current of 100 μA per channel across the full supply range
• High electromagnetic interference rejection performance rated at 71 dB at 1 GHz
• Stable frequency response with 0.9 MHz bandwidth and low offset voltage

Applications

• Power modules
• Sensor interface circuits
• Motor control systems
• Audio signal processing

Procurement Notes

Verify the specific ordering suffix 'W' against the manufacturer's official documentation to confirm pinout configuration differences compared to standard variants. Ensure the selected package matches the required PCB footprint for SOT23-5. Confirm RoHS compliance status as defined by the manufacturer's green product standards before finalizing procurement specifications.

Selection Notes

Select this component when high supply voltage tolerance up to 36 V is required alongside low power consumption. The rail-to-rail output and ground-referenced input make it suitable for single-supply applications. Consider the 0.9 MHz bandwidth and 0.5 V/μs slew rate for general-purpose amplification tasks where moderate speed and precision are sufficient.

Part Context

The LM321AW-S5TR belongs to the LM321A/LM358A/LM324A family of general-purpose operational amplifiers designed by 3PEAK. This series utilizes proprietary design techniques to achieve excellent AC performance while maintaining low power usage. The 'W' suffix indicates a specific pinout variation within the SOT23-5 package format, distinguishing it from other members of the same electrical family.

Replacement Considerations

The datasheet identifies the LM321A series as plug-in replacements for commercially available op amps. Specific substitute part numbers are not explicitly listed in the provided documentation; verify compatibility with existing designs based on electrical parameters and pinout definitions.