LF353M

Overview

The LF353M is a dual wideband JFET-input operational amplifier manufactured by Texas Instruments. It features an internal trimmed input offset voltage and low power supply current while maintaining high gain-bandwidth product and fast slew rate. The device utilizes BI-FET II technology for matched high-voltage JFET inputs, resulting in very low input bias and offset currents. It operates within a temperature range of 0°C to 70°C and is housed in an 8-SOIC package.

Feature Summary

• JFET input stage providing extremely low input bias current
• Internal trimming of input offset voltage for precision
• High slew rate suitable for wideband applications
• Low power consumption with minimal supply current

Applications

• High-speed integrators
• Fast digital-to-analog converters
• Sample-and-hold circuits
• Audio signal processing

Procurement Notes

Verify the specific manufacturer source as the LF353M part number may be associated with onsemi or Texas Instruments depending on the distribution channel. Confirm RoHS compliance status and check for End-of-Life notifications, as some variants have been discontinued. Ensure the SOIC-8 package dimensions match the design requirements before ordering.

Selection Notes

Select this component when high input impedance and low bias current are critical for signal integrity. It serves as a direct pin-compatible upgrade for LM1558 and LM358 designs requiring improved performance. Consider the 8-SOIC package constraints for surface-mount assembly processes and verify thermal dissipation capabilities within the specified operating temperature range.

Part Context

This component belongs to the LF353 series of dual operational amplifiers. It shares architectural similarities with other members like the LF353N and LF353DR but differs in packaging and specific electrical tolerances. The series is known for combining JFET input characteristics with bipolar output drive capabilities.

Replacement Considerations

LF353M/NOPB is listed as a direct replacement. Verify compatibility with LF353MX/NOPB for manufacturing recommendations. Cross-reference with LM1558 for legacy design upgrades.