LMV981IDCKRG4

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The LMV981IDCKRG4 is a low-power, wide bandwidth dual operational amplifier from Texas Instruments. It is designed to provide precision, low offset voltage and low noise performance for signal amplification applications in audio, telecommunications and medical equipment. The LMV981IDCKRG4 is fully specified for use at the extended temperature range of -55°C to +125°C. With its low power, precise performance and high common mode rejection ratio (CMRR), the LMV981IDCKRG4 is ideal for use in instrumentation, signal acquisition and signal conditioning systems.

Features

• Low quiescent power of 1.3mA/amplifier
• Number of amplifiers: Dual
• Wide bandwidth of 1.07MHz
• Specified for rail-to-rail input/output operation
• Operating supply voltage range from 2.7V to 5.5V
• Gain-bandwidth product (GBP) of 2.0MHz
• Low offset voltage of 50µV maximum
• Low input bias current of 10nA maximum
• Input common-mode range (CMIR) of 0.25V from ground
• Wide temperature range of -55°C to +125°C

Function

The LMV981IDCKRG4 is a dual op amp that can be used to amplify small-signal power in applications requiring high performance. The LMV981IDCKRG4 is a good choice for audio amplifier designs, as it has excellent CMRR, low noise, and fast settling times. It is also an ideal choice when building buffer amplifiers, as its low power consumption means that it can amplify signals with low distortion even when running from low voltages.

Applications

Given its wide temperature range and low power consumption, the LMV981IDCKRG4 is a good choice for instrumentation, signal acquisition and signal conditioning applications, such as:

• Sensor interface circuits
• Data conversion circuits
• Medical devices
• Audio amplifiers
• Transceivers
• Wireless communication

Working Principle

The LMV981IDCKRG4 is an operational amplifier, which amplifies small-signal power. It uses a differential pair configuration of two transistors to achieve amplification. The input voltage is applied to the two transistors through two resistors, which are used to control their current gain. The outputs of the transistors are then combined and amplified, with the output voltage being proportional to the input. TheLMV981IDCKRG4hasa low quiescent and a wide gain-bandwidth product, which enables it to amplify signals with low distortion even when running from low voltages.

Conclusion

The LMV981IDCKRG4 is an ideal choice for audio and signal conditioning applications. Its wide temperature range, low power consumption, low offset voltage, and low noise make it suitable for a variety of instrumentation, buffering and signal amplification applications. The LMV981IDCKRG4 is a versatile device that can help engineers address the need for low power and low noise signal conditioning solutions for their signal processing systems.

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