LMC6462BIM

Voltage - Input Offset:	250µV
Base Part Number:	LMC6462
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 (±):	3 V ~ 15.5 V, ±1.5 V ~ 7.75 V
Current - Output / Channel:	75mA
Current - Supply:	50µA
Series:	--
Current - Input Bias:	0.15pA
Gain Bandwidth Product:	50kHz
Slew Rate:	0.028 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The LMC6462BIM is a high-performance, low-cost, wide-range differential input operational amplifier. It is designed for a variety of applications, including buffering, instrumentation, audio, and video amplifiers, as well as low noise amplifiers. This amplifier can be used to provide gains in the range of 1 to 10 and is capable of driving up to 20mA of current. The LMC6462BIM is particularly suited for applications that require high noise performance, low power consumption and very low distortion, such as audio and video systems.

Application Fields

The LMC6462BIM is most often used in audio and video applications; however, it can be used in a variety of other applications, including instrumentation, buffering, and low noise amplifiers.

• Instrumentation: The LMC6462BIM is often used in instrumentation equipment, such as meters, oscilloscopes, and data loggers. It can provide accurate voltage feedback for precise control of signals, as well as being able to drive high current outputs.
• Buffering: Due to its low-noise characteristics, the LMC6462BIM is often used as a buffer amplifier. This can be used to provide high-level isolation for signal sources, resulting in improved signal-to-noise ratio or reduced distortion.
• Low Noise Amplifiers: The LMC6462BIM can also be used as a low noise amplifier. Due to its high input impedance and wide-range open loop gain, it is an ideal solution for amplifying low-level signals.
• Audio and Video Systems: The LMC6462BIM can be used in audio and video systems to provide reliable, high-performance power amplifiers. Its low noise and distortion capabilities allow it to be used in a variety of applications.

Working Principle

The LMC6462BIM is an AC-coupled, differential amplifier, which receives a signal at either of its two input pins. The signal is then amplified by the amplifier’s internal stages and fed out of the device’s single output pin. The input stage consists of an input differential pair, along with a pair of current sources to provide bias current to the pair. This current is adjustable and is used to balance the device’s input stage and to optimise it for the desired application. The amplifier also has an additional stage, referred to as the gain-stage, which provides level shifting and additional amplification. The gain of this stage can be set by adjusting the transient biasing control on the device. This setting is referred to as the "RDS" and is typically adjusted using external resistors. The output stage of the device is also adjustable, allowing for the output voltage swing of the amplifier to be set to a desired level. Furthermore, the output stage can also be configured as a current source, allowing for the output current of the amplifier to be set to a desired level.

Conclusion

The LMC6462BIM is a high-performance, high-efficiency, low-cost differential input operational amplifier which is capable of providing a range of gains and currents. It is most commonly used in audio and video applications, but can also be used in a variety of other applications, such as instrumentation, buffering, and low noise amplifiers. The device is highly configurable, allowing for the gain, output voltage swing, and output current to all be adjusted to suit the particular application.

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