Texas Instruments LF353N Dual JFET Op-Amp, 4MHz, 13V/µs, DIP-8

The Texas Instruments LF353N is a dual, high-speed operational amplifier that utilises advanced JFET-input technology for exceptional performance. This device features an internally trimmed input offset voltage, courtesy of the BI-FET II process, ensuring precision and stability in demanding circuit applications. It operates with a remarkably low supply current while delivering a substantial gain bandwidth product and a fast slew rate, making it ideal for designs where both power efficiency and signal fidelity are critical.

A key advantage is the well-matched, high-voltage JFET input stage, which provides an extremely high input impedance and very low input bias and offset currents. This characteristic minimises loading on signal sources and reduces errors in high-impedance sensing circuits. The LF353N is pin-compatible with the industry-standard LM1558, allowing for a straightforward performance upgrade in existing designs that use the LM1558 or LM358, enhancing bandwidth and slew rate without a board re-layout.

Applications

This versatile amplifier is engineered for use in a wide array of precision analogue circuits. Its combination of low noise, high speed, and low input current errors makes it perfectly suited for high-speed integrators, fast digital-to-analogue converters, and accurate sample-and-hold circuits. It is also an excellent choice for active filters, precision rectifiers, and data acquisition systems where signal integrity is paramount.

Key Specifications & Features

• Dual Channel Configuration: Contains two independent high-speed op-amps in a single package.
• High Gain Bandwidth: 4MHz bandwidth supports a wide range of signal frequencies.
• Fast Slew Rate: 13V/µs enables rapid response to signal changes, crucial for pulse and video applications.
• Wide Supply Range: Operates from a single 10V to 36V supply, offering great design flexibility.<br