MAX9928EVKIT+

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Channels per IC:	1 - Single
Moisture Sensitivity Level (MSL):	--
Amplifier Type:	Current Sense
Output Type:	Single-Ended
Slew Rate:	--
-3db Bandwidth:	150kHz
Current - Supply (Main IC):	20µA
Voltage - Supply, Single/Dual (±):	2.5 V ~ 5.5 V
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	MAX9928

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Introduction

The MAX9928EVKIT+ promises to provide the best of both worlds as an evaluation board for operational amplifiers. It is designed for use in a range of different applications and offers a variety of features, configurations, and tests. The following article provides an overview of the MAX9928EVKIT+ and its associated application field and working principle.

Application Field

The MAX9928EVKIT+ is particularly well suited for use in professional audio systems, as it provides a variety of performance enhancing configurations and features. It is able to combine an ultra-low noise, wide bandwidth current feedback operational amplifier and a voltage feedback operational amplifier in a single package.The MAX9928EVKIT+ also offers a variety of features designed to improve accuracy and dynamic range. It features extensively optimized compensation circuitry to minimize distortion and overshoot, as well as a precision amplifier topology to reduce noise and ensure high-gain stability. This makes it suitable for applications in professional audio, medical imaging, signal processing, and other high-precision settings.

Working Principle

At the core of the MAX9928EVKIT+ lies a pair of low noise, wide bandwidth op-amps. The Voltage Feedback Operational Amplifier (VFOA) is a high-performance op-amp with low dc and ac error. The VFOA is designed to operate in various closed-loop configurations for maximum dynamic range and high gain accuracy.The Ultra-Low Noise Current-Feedback Operational Amplifier (UNCFOA) is a high performance amplifier with a wide bandwidth and high gain-bandwidth product. It is designed for use in various open-loop or closed-loop configurations which require greater dynamic range and low noise performance than a typical voltage feedback op-amp can provide.The MAX9928EVKIT+ also features input protection circuitry designed to protect the amplifier from overvoltages. This can prove invaluable in hostile environments or when assessing the performance of high voltage amplifiers or ultralow noise amplifiers.

Conclusion

The MAX9928EVKIT+ is an ideal evaluation solution for operational amplifiers used in professional audio systems, medical imaging, signal processing, and other high-precision settings. It combines a low noise, wide bandwidth voltage feedback operational amplifier and an ultra-low noise current feedback operational amplifier in a single package, while also offering a variety of performance and protection features.

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