ISL28218SOICEVAL1Z

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Channels per IC:	2 - Dual
Amplifier Type:	General Purpose
Output Type:	Rail-to-Rail
Slew Rate:	1.2 V/µs
Current - Output / Channel:	28mA
Current - Supply (Main IC):	850µA
Voltage - Supply, Single/Dual (±):	3 V ~ 40 V, ±1.5 V ~ 20 V
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	ISL28218

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ISL28218SOICEVAL1Z Evaluation Board - Opamp Summary

The ISL28218SOCICEVAL1Z Evaluation Board is a single-channel incremental differential amplifier that offers high precision and wide dynamic range characteristics. It is intended for use in a variety of applications, including linear potentiometer code-sensors, low-level audio input/output and remote current sensing. This article aims to provide an overview of this Evaluation Board’s capabilities and design features, as well as its application field and working principles.

Overview

The ISL28218SOCICEVAL1Z Evaluation Board is an integrated circuit (IC) that functions as a single-channel incremental differential amplifier. This IC operates with low power consumption and is designed for use in single-channel applications in harsh environments. It has a high degree of precision and a wide range of programmable gain and bandwidth. Additionally, it features a wide range of input and output voltage settings, making it suitable for a variety of applications.

Design Features

The ISL28218SOCICEVAL1Z Evaluation Board is constructed with a single-channel incremental differential amplifier in a surface-mount chip scale package. Its design is highly robust and stable with a large dynamic range. Furthermore, its auto-zero offset cancellation control permits the use of large gains without the risk of accuracy degradation by offset voltage errors. Additionally, its voltage references are all true differential references, meaning the gain will be stable across the entire voltage supply range. The Evaluation Board also incorporates an on-chip temperature sensor, as well as a signal-level detector circuit for detecting changes in the input differential signals. Other features include an adjustable slew rate with programmable rise and fall times, and a programmable noise and distortion rejection ratio.

Application Field

The ISL28218SOCICEVAL1Z Assessment Board is designed for use in a variety of applications. It is particularly suitable for linear potentiometer code-sensors and low-level audio input/output, as well as remote current sensing. Additionally, it is commonly used in industrial applications, such as temperature, displacement and vibration measurements.

Working Principle

The ISL28218SOCICEVAL1Z Evaluation Board works by converting physical input voltage signals into incremental digital signals. When an input voltage is applied to the differential amplifier, its input signals are conditioned by gain and offset adjustment. This means that the output signal is amplified proportionately to the input signal, and offset-cancellation ensures that the gain remains unchanged irrespective of the input voltage level. Additionally, the signal processing circuit of the Board includes a high-precision voltage reference, a continuous programmable slew rate, and an auto-zero operation control. This allows the amplifier to maintain an excellent signal-to-noise ratio (SNR) performance. The signal components are then filtered, conditioned, and amplified, before being converted into a digital output signal. This output signal is then suitable for use with various types of signal processing applications.

Conclusion

The ISL28218SOCICEVAL1Z Evaluation Board is a single-channel incremental differential amplifier that is suitable for use in a variety of applications. It has been designed with high precision and wide dynamic range characteristics, as well as a variety of programmable features. Furthermore, its on-chip temperature sensor and signal level detection circuit make it a highly versatile and robust Evaluation Board. Additionally, its working principle of converting physical input voltage signals into incremental digital signals ensures that it maintains a high SNR range performance. As such, the ISL28218SOCICEVAL1Z Evaluation Board is a suitable choice for linear potentiometer code-sensors, low-level audio input/output and remote current sensing.

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