LMH6647MAX

Voltage - Input Offset:	1mV
Base Part Number:	LMH6647
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	2.5 V ~ 12 V, ±1.25 V ~ 6 V
Current - Output / Channel:	20mA
Current - Supply:	725µA
Series:	VIP10™
Current - Input Bias:	650nA
-3db Bandwidth:	55MHz
Slew Rate:	22 V/µs
Output Type:	Push-Pull, Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Voltage Feedback
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LMH6647MAX Application Field and Working Principle

Introduction:

The LMH6647MAX, a product of National Semiconductor, is a high performance, high-speed, low-power, single-supply, rail-to-rail output, general-purpose op amp. Its small size makes it ideal for mobile and wearable applications. Its large gain-bandwidth product, high precision, fast settling time and excellent settling performance makes it suitable for signal and measurement applications.

Frequency Response and Working Principle:

The LMH6647MAX has a unity-gain frequency of 34mHz, a gain-bandwidth product of 1.5GHz, and a bandwidth of 1.45GHz. It provides a gain of up to 40dB, with a rise time of 11ns. The NMH6647MAX has an internal low-noise voltage regulator, which improves the linearity of the rail-to-rail signal amplifiers.The LM8647MAX is designed around a trans-impedance amplifier topology, which consists of an input stage, a mirror stage and an output stage. The input stage provides a high-input impedance and acts as a buffer to reduce the loading of the source. The mirror stage consists of a current mirror network used to change the input impedance to suit the output stage. The output stage consists of an output buffer connected to the output terminal. The output buffer is voltage-controlled, which means that the output current is proportional to the voltage across it. The output buffer also provides an adjustable current limit and an adjustable output current gain to increase the bandwidth of the amplifier.

Applications:

The LMH6647MAX is a low-power op amp suitable for a wide range of applications. It is well-suited to portable and embedded applications, such as smartphones and tablets. Its wide bandwidth and low noise make it ideal for signal conditioning and measurement applications, such as medical imaging and industrial process control. It is also suitable for low-power audio applications, such as headphone amplifiers.

Conclusion:

The LMH6647MAX is a high-performance, high-speed, low-power, single-supply rail-to-rail output op amp. Its small size and low power consumption makes it ideal for mobile and wearable applications. Its high precision, wide bandwidth and fast settling time makes it suitable for signal conditioning and measurement applications. It is also suitable for low-power audio applications, such as headphone amplifiers.

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