MAX4039EUB

Voltage - Input Offset:	200µV
Base Part Number:	MAX4039
Supplier Device Package:	10-uMAX
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	1.8 V ~ 3.6 V
Current - Output / Channel:	13mA
Current - Supply:	3µA
Series:	--
Current - Input Bias:	1pA
Gain Bandwidth Product:	4kHz
Slew Rate:	0.004 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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MAX4039EUB Application Field and Working Principle

Introduction

The MAX4039EUB is an ultra-low power, unity-gain stable instrumentation amplifier from Maxim Integrated. It features an offset voltage of 0.83mV and a wide range of gain settings, making it an ideal choice for a variety of applications in instrumentation, test and measurement applications. This article provides an introduction to the application field of the MAX4039EUB, in addition to discussing its working principle.

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The MAX4039EUB is a versatile, flexible amplifier for all types of linear applications, including instrumentation and test and measurement applications. It can be used as a single-supply op-amp, buffer amp, log amp, and even a programmable gain amplifier. The device can also be used as an active filter, and its wide range of gains allows it to be used in many different configurations.The MAX4039EUB is an ideal choice for applications where low offset and power-supply noise are crucial. The device has two single-supply voltage ranges (±2.7 to ±5.5V); this makes it suitable for a wide range of applications, as it will operate optimally even at low voltages. Additionally, the device features a low current drain (typically 200nA) – making it ideal for battery-powered applications.

Applications

The MAX4039EUB is a versatile, low-power solution for a wide range of applications. It is an excellent choice for precision instrumentation, test and measurement equipment, such as:• Low Power Industrial Process Control• Low Power Sensor Interfacing• Low Power Telecommunications• Mobile Medical Diagnostics• Battery-Powered Audio Equipment• Active FilteringIn short, the MAX4039EUB can be used in any application where low offset, low power-supply noise and precise gain control are crucial.

Working Principle

The MAX4039EUB is a fully differential instrumentation amplifier with a wide range of programmable gains available. The amplifier consists of two matched op-amp pairs; the first op-amp is used to provide gain adjustment, while the second op-amp is used to provide the output signal. The input signal is first amplified by the first op-amp, and then the amplified signal is applied to the second op-amp, which provides the output signal. The gain of the amplifier can be adjusted by connecting a resistor across the two inputs of the first op-amp. By changing the resistance, the gain of the amplifier can be adjusted.The MAX4039EUB also provides excellent CMRR (Common-Mode Rejection Ratio). This is achieved by keeping the phased relationship between the two input signals the same, while adjusting the amplifier’s gain. The voltage gain of the device is determined by the ratio of resistor connected across its two inputs.

Conclusion

The MAX4039EUB from Maxim Integrated is an ideal choice for a variety of instrumentation, test and measurement applications. It features excellent low-offset accuracy, low power consumption, and an adjustable gain that can be used for different configurations. Moreover, the device offers excellent CMRR, making it ideal for applications where precise gains are required.

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