LF353P

Overview

The LF353P is a dual general-purpose operational amplifier manufactured by Texas Instruments, featuring JFET inputs. It operates within a supply voltage range of -18 V to +18 V and supports up to two channels in an 8-pin PDIP package for through-hole mounting. Key electrical parameters include a gain-bandwidth product of 3 MHz, a slew rate of 13 V/µs, and a typical input bias current of 4 nA. The device maintains low power consumption with a typical supply current of 3.6 mA while delivering high input impedance.

Feature Summary

• JFET input stage providing very low input bias and offset currents
• Internal adjustment of input offset voltage for precision applications
• High slew rate and large gain-bandwidth product maintained at low power levels

Applications

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

Procurement Notes

Verify the specific suffix 'P' corresponds to the PDIP-8 through-hole package variant when sourcing. Confirm that the component meets the required operating temperature range of 0°C to 70°C for your specific environment. Ensure compatibility with standard DIP footprints during PCB layout verification.

Selection Notes

Select this component when high input impedance and low bias current are critical for signal integrity. It serves as a suitable upgrade for designs previously using LM1558 or LM358 architectures requiring improved performance without pin changes. Consider its bipolar supply capability and non-rail-to-rail output characteristics for appropriate circuit topology.

Part Context

This part belongs to the LF353 series of dual wideband amplifiers. It shares functional similarities with other JFET-input op-amps but is distinguished by its specific internal trimming and package configuration. The LF353P variant specifically denotes the plastic dual in-line package version intended for prototyping or through-hole manufacturing processes.

Replacement Considerations

The LF353N/NOPB is a documented direct substitute offering identical functionality in a different package format.