LM348N LM348 Quad High-gain Internally-Compensated 36V Operational Amplifier Op Amp Breadboard-Friendly IC DIP-14 (Pack of 10)

Description

Product Overview

The LM348N from Texas Instruments is a quad, internally compensated operational amplifier designed for high‑gain applications up to a 36 V supply voltage. Each of the four independent amplifiers draws a typical supply current of only 0.6 mA, making the device exceptionally low‑power while still delivering the performance required for precision analog signal processing. The IC follows the µA741 operating characteristics, ensuring compatibility with legacy designs that specify LM148, LM248, or LM348 parts. Its DIP‑14 package is breadboard‑friendly, allowing rapid prototyping and easy integration into both new and existing circuits. The device features low input offset voltage, low input offset current, and built‑in input/output overload protection, which together provide robust operation in noisy industrial environments. With a best‑seller rank of #25 in Voltage Feedback Amplifiers, the LM348N is a trusted choice for engineers seeking reliable, high‑gain amplification in a compact form factor.

Usage

Designed for a broad range of industrial and scientific applications, the LM348N excels in signal conditioning, sensor interfacing, and data acquisition systems. Its high‑gain capability makes it ideal for amplifying low‑level signals from transducers such as strain gauges, thermocouples, and photodiodes before they are digitized by analog‑to‑digital converters. The low supply‑current design also suits battery‑operated portable instrumentation, where power efficiency directly translates to longer operational life. In laboratory environments, the quad configuration allows multiple channels to be implemented on a single board, reducing component count and simplifying layout. The device’s robust input protection safeguards against accidental voltage spikes, a common concern when working with high‑voltage industrial equipment. Whether you are building a precision instrumentation front‑end, a motor‑control feedback loop, or a custom test‑and‑measurement platform, the LM348N provides the flexibility and reliability required for demanding real‑world conditions.

Why Choose Us

Choosing the LM348N means selecting a component that combines legacy compatibility with modern performance. Texas Instruments’ reputation for quality assurance ensures each IC meets stringent specifications for temperature stability, noise performance, and long‑term reliability. The quad architecture reduces board space and simplifies routing, which can lower manufacturing costs and improve overall system robustness. Our distribution network guarantees fast, dependable delivery, and our technical support team is available to assist with schematic reviews, layout recommendations, and troubleshooting. In addition, the LM348N is backed by comprehensive documentation, including detailed datasheets, application notes, and reference designs that accelerate development cycles. By offering the LM348N in a convenient pack of ten, we provide both the quantity and the confidence needed for production runs, prototype builds, and educational projects alike.

Key Features

• Quad configuration delivers four independent high‑gain amplifiers in a single compact package, reducing board space and component count.
• Low typical supply current of 0.6 mA per amplifier extends battery life for portable and remote sensing applications.
• Low input offset voltage and offset current ensure accurate amplification of low‑level signals without added error.
• Built‑in overload protection safeguards both the amplifier and connected circuitry from voltage spikes and misuse.
• Comprehensive technical support and fast shipping provide confidence and convenience for engineers and designers.

FAQ

What supply voltage range does the LM348N support?

The LM348N operates reliably with a supply voltage up to 36 V, making it suitable for both low‑voltage and higher‑voltage analog circuits. Typical operation is specified between 5 V and 36 V, allowing flexibility in system design.

Can the LM348N be used as a replacement for older LM148 or LM248 parts?

Yes. The LM348N is designed to be interchangeable with the LM148, LM248, and original LM348 devices. It maintains the same pin‑out and electrical characteristics while offering improved performance and lower power consumption.

How does the internal compensation affect circuit design?

Internal compensation simplifies the design process by eliminating the need for external compensation components. This reduces the number of external parts, minimizes layout complexity, and improves overall stability across a wide range of operating conditions.

What are the typical applications for this quad operational amplifier?

Typical applications include sensor signal conditioning, instrumentation amplifiers, active filters, data acquisition front‑ends, and motor‑control feedback loops. Its high‑gain capability and low noise make it well‑suited for precision analog processing in industrial, scientific, and medical equipment.

Is there any special handling required for the DIP‑14 package during soldering?

The DIP‑14 package is standard and compatible with most automated and manual soldering processes. It is recommended to follow typical lead‑free soldering profiles and to inspect solder joints for proper wetting to ensure reliable long‑term performance.