LT1490AIN8#PBF

Updated: 2026-09-15

Overview

The LT1490AIN8#PBF is a high-performance operational amplifier manufactured by Analog Devices. It is part of the LT1490 series, known for its precision and reliability in demanding analog applications. The device is housed in an 8-pin PDIP package, making it suitable for through-hole PCB assembly. Designed for industrial and medical applications, this op-amp offers exceptional noise performance and bandwidth, making it ideal for signal conditioning and data acquisition systems. Its robust design ensures stability across a wide range of operating conditions.

Structure and Working Principle

The LT1490AIN8#PBF operates as a voltage amplifier, amplifying the difference between its two input terminals. It features internal compensation for stability and includes protection against overvoltage and ESD events. The device is built using bipolar junction transistor (BJT) technology for high-speed performance. The op-amp's internal circuitry includes differential input stages, gain stages, and output buffers, ensuring high gain and low distortion. Its design minimizes thermal drift and ensures consistent performance across temperature variations.

Key Features

The LT1490AIN8#PBF stands out for its low input offset voltage and low noise, making it suitable for precision applications. It offers a wide bandwidth of up to 50 MHz and a slew rate of 20 V/µs, enabling fast signal processing. Other notable features include low power consumption (typically 5 mA per amplifier) and a wide supply voltage range (from ±2.5 V to ±15 V). These characteristics make it versatile for both battery-powered and mains-operated systems.

Application Areas

This op-amp is widely used in medical instrumentation, such as ECG amplifiers and ultrasound systems, where signal integrity is critical. It is also employed in industrial control systems, communication equipment, and test and measurement devices. In addition, the LT1490AIN8#PBF is suitable for audio processing, active filters, and analog-to-digital converter (ADC) driver circuits. Its high performance makes it a preferred choice for engineers designing sensitive analog systems.

Maintenance and Precautions

To ensure longevity, the LT1490AIN8#PBF should be handled with ESD precautions, such as using grounded wrist straps and anti-static mats. Proper PCB layout techniques, including short trace lengths and ground planes, are essential to minimize noise and oscillations. Avoid exceeding the maximum supply voltage or input voltage ratings, as this can damage the device. Thermal management is generally not required for standard operating conditions, but high ambient temperatures may necessitate heat sinking.

B2B Procurement Guide

When sourcing the LT1490AIN8#PBF, verify the supplier's authenticity to avoid counterfeit components. Authorized distributors like Digi-Key, Mouser, and Arrow Electronics are recommended for reliable supply. Consider ordering in bulk to reduce unit costs, and check for lead times, especially during global chip shortages. Ensure the part meets RoHS or other regulatory requirements if applicable to your industry.