MAX4222EEE+T

Voltage - Input Offset:	4mV
Base Part Number:	MAX4222
Supplier Device Package:	16-QSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	3.15 V ~ 11 V, ±1.575 V ~ 5.5 V
Current - Output / Channel:	120mA
Current - Supply:	5.5mA
Series:	--
Current - Input Bias:	5.4µA
-3db Bandwidth:	200MHz
Slew Rate:	600 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	4
Amplifier Type:	Buffer
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MAX4222EEE+T: Instrumentation, OP Amps, Buffer Amps

The MAX4222EEE+T is a high power amplifier from Maxim Integrated that offers high performance, low distortion, and low noise in a buffered differential amplifier circuit. It is a part of the MAX4222EEE family of high-power, low-noise automotive amplifiers that provides high power and low distortion for applications such as audio, instrumentation, and medical imaging. The MAX4222EEE+T has been optimized to provide a wide gain-bandwidth product (GBW) of 50MHz and a power bandwidth of 20kHz. These features make it suitable for powering automotive audio systems, instrumentation, ultra-low noise imaging, and other general-purpose amplifier applications.

MAX4222EEE+T Overview

The MAX4222EEE+T is an internally composed and compensated monolithic amplifier that uses the same advanced integrated circuit design technology found in the MAX4222EEE family of high-power amplifiers. This part offers an extremely low quiescent current of 5mA (typical) and a shutdown current of 0.3uA (typical). The MAX4222EEE+T comes in a 16-lead Thin-SOT package that is thermally enhanced for better dissipation of power. The amplifier is also fully tested to ensure reliable operation and meet the demands of high-power applications.

MAX4222EEE+T Design

The MAX4222EEE+T is designed to maximize power efficiency and feature a high input impedance and low output impedance. The amplifier has a gain bandwidth product (GBW) of 50 MHz, a power bandwidth of 20 kHz, and low distortion and noise performance. It has two matched, high-gain differential amplifier channels that provide high-common-mode rejection and low-distortion performance. The gain of each channel is adjustable with an external resistor, and the power supply voltage range is from 4V to 20V.

MAX4222EEE+T Low-Noise Performance

The MAX4222EEE+T has a noise figure that is better than -70dB and a low-noise bias current of 0.1μA, making it suitable for high-performance, low-noise applications. The amplifier also features an input voltage noise density of 3nV/√Hz, a fast slew rate of 1MHz, and a high-frequency control bandwidth of 50MHz. Additionally, the MAX4222EEE+T provides excellent power supply rejection and an input-referred noise of <1µVrms.

MAX4222EEE+T Applications

The MAX4222EEE+T is designed to provide high performance, low distortion, and low noise performance in a compact package. It is suitable for a wide range of applications such as audio, instrumentation, medical imaging, and automotive audio systems. The amplifier is also well-suited for precision test and measurement systems, scientific instrumentation, and audio reproduction.

MAX4222EEE+T Working Principle

The MAX4222EEE+T operates as a differential amplifier circuit, with two matched, high-gain input stages connected in an H-bridge configuration. This configuration helps to reduce input-referred noise and provide excellent power supply rejection. Additionally, an external resistor is used to adjust the gain of each channel. The amplifier is powered by a single power supply between 4V and 20V and has a maximum output current capability of 400mA. The MAX4222EEE+T features exceptionally low distortion and noise performance due to its differential topology and signal tracking bias design. The input differential amplifiers are composed of matched transistors that are biased to provide excellent common-mode rejection. This topology also helps to significantly reduce input-referred noise. Additionally, the amplifier has a shutdown feature that allows it to be turned off when not in use in order to save power.

Conclusion

The MAX4222EEE+T is an ideal amplifier for audio, instrumentation, medical imaging, and automotive audio applications due to its low-noise, low-distortion, and high-dynamic-range performance. The amplifier operates as a buffered differential amplifier circuit and has two high-gain input stages that provide excellent common-mode rejection and low-distortion performance. Additionally, the amplifier has a fast slew rate of 1MHz, a noise figure of -70dB, and a high-frequency control bandwidth of 50MHz. The MAX4222EEE+T is a reliable and versatile amplifier that is suitable for a wide range of applications.

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