LF353PG4

Overview

The LF353PG4 is a dual wideband operational amplifier manufactured by Texas Instruments, utilizing BI-FET II technology for high-performance signal processing. It features JFET inputs providing extremely low input bias and offset currents. The device operates within a supply voltage range of ±7V to ±18V (14V to 36V single supply). Key electrical parameters include a gain-bandwidth product of 3MHz, a slew rate of 13V/µs, an input offset voltage of 5mV, and an input bias current of 50pA. It is housed in an 8-pin PDIP package with an operating temperature range of 0°C to 70°C.

Feature Summary

• BI-FET II technology ensures matched high-voltage JFET inputs for minimal bias and offset currents.
• Internal trimming eliminates the need for external offset null adjustments.
• High slew rate and wide bandwidth support fast settling times and high-frequency applications.

Applications

• High-speed integrators
• Sample-and-hold circuits
• Digital-to-analog converters

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance status and active lifecycle phase. Ensure the procurement channel provides original manufacturer packaging to prevent counterfeit components. Cross-reference the 8-pin PDIP footprint dimensions with PCB design files prior to ordering.

Selection Notes

Select this component when designing circuits requiring low input bias current and high input impedance without sacrificing speed. It serves as a direct pin-compatible upgrade for LM1558 and LM358 designs where improved performance metrics are necessary. Consider the PDIP package constraints if space is limited compared to surface-mount alternatives.

Part Context

This part belongs to the LF353 series of dual JFET-input operational amplifiers. The 'P' designation indicates a plastic dual in-line package, while 'G4' typically signifies lead-free and RoHS-compliant manufacturing variations within the Texas Instruments portfolio. It is designed for general-purpose analog signal conditioning tasks.

Replacement Considerations

The LF353N/NOPB and LF353DR/NOPB are verified functional equivalents within the same family offering identical electrical characteristics. These alternatives provide different package options such as DIP or SOIC for layout flexibility while maintaining pin compatibility.