ISL28134IBZ-T13

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ISL28134IBZ-T13 is a 4-quadrant input-bias, single-supply, rail-to-rail, current-feedback amplifier with inverted input. It utilizes Intersil’s proprietary CMOS process, higher-density high-common-mode range pin-outs, and more power-efficient performance. ISL28134IBZ-T13 is commonly found in automotive, industrial, and medical applications.

Application field

ISL28134IBZ-T13 is suitable for a wide variety of applications including power management, signal conditioning, medical instrumentation, industrial process control and automotive designs. Its key features include low quiescent current, wide bandwidth, and low input and output bias currents. Also, the device provides rail-to-rail signal swings at both the input and output, making it suitable for signal-conditioning applications with signal sources that swing close to the power-supply rails.

Due to its current feedback architecture, the amplifier has low gain and differential line matching making it well-suited to applications such as active filtering or driving LED display drivers. Furthermore, its output voltage compliance capability is enhanced by its rail-to-rail capability, resulting in high dynamic range and improved accuracy, which is beneficial in applications such as current measurement and role-based automation.

Working principle

ISL28134IBZ-T13 operational amplifier functions by amplifying the difference between two input voltages (called the differential input voltage, VIN). It does this by using the common-mode voltage as a bias voltage, to which two input terminals (called the inverting and non-inverting inputs) are compared. The difference between these two input voltages is then amplified using a gain multiplier and the output voltage of the amplifier is the product of the difference and the gain.

ISL28134IBZ-T13 has a wide input common-mode range, which allows it to amplify signal levels close to the power-supply rails. This makes it ideal for signal conditioning, amplifying signals that swing close to the power-supply rails. The device also has low input and output bias currents, which minimize errors due to temperature changes.

In addition, the amplifier operates at low quiescent current levels. Its low power requirements make it suitable for designing very low-power systems, therefore it is often found in sensors and battery-powered systems. Additionally, its wide bandwidth, low noise and high slew rates make it suitable for high-speed applications.

Finally, ISL28134IBZ-T13 provides very good accuracy, linearity, and distortion performance in a very small package, making it an ideal choice for automotive, industrial, and medical applications.

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