LF353DG4

Overview

The LF353DG4 is a dual JFET-input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 3 MHz and a slew rate of 13 V/us. The input offset voltage is 10 mV, with an input bias current of 200 pA. Operating supply voltages range from 7 V to 36 V single supply or ±3.5 V to ±18 V dual supply. The device operates within a temperature range of 0°C to +70°C. It is housed in an SOIC-8 surface-mount package.

Feature Summary

• Dual JFET-input architecture providing high input impedance
• Wideband performance suitable for signal processing applications
• Surface-mount packaging for automated assembly

Applications

• Audio preamplifier circuits
• Active filter designs
• General-purpose analog signal conditioning

Procurement Notes

Verify the component status as end-of-life, indicating potential obsolescence and discontinuation by the manufacturer. Confirm RoHS compliance details through official documentation before procurement. Ensure design-in decisions account for availability constraints associated with discontinued lifecycle stages.

Selection Notes

Select this component for applications requiring JFET input characteristics with moderate bandwidth. Compare against active alternatives if long-term supply stability is required. Verify pinout compatibility with existing PCB footprints when transitioning from legacy packages.

Part Context

This part belongs to the LF353 series of wideband amplifiers. It shares functional similarities with other members like the LF353N and LF353DR but differs in package type and specific electrical tolerances defined by the DG4 suffix.

Replacement Considerations

LF353DRG4 is a verified direct replacement offering identical functionality in a tape-and-reel format.