LMV321IDCKTG4

Voltage - Input Offset:	1.7mV
Base Part Number:	LMV321
Supplier Device Package:	SC-70-5
Package / Case:	5-TSSOP, SC-70-5, SOT-353
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
Current - Output / Channel:	160mA
Current - Supply:	130µA
Series:	--
Current - Input Bias:	15nA
Gain Bandwidth Product:	1MHz
Slew Rate:	1 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LMV321IDCKTG4 is an operational transconductance amplifier (OTA) and buffer amplifier specifically designed for precision, low-noise operation. It is a three-stage amplifier, with one stage that acts as a buffer and the other two stages combined to form an OTA, providing the user with a wide range of gain and output ranges. With its low noise feature, the LMV321IDCKTG4 is ideally suited for use in a variety of instrumentation, OPamp, and buffer amplifier applications.

Application Field

The LMV321IDCKTG4 OTA and buffer amplifier have a broad range of applications. The wide range of gains and outputs, coupled with its low noise feature, makes it suitable for use in a variety of instrumentation, OPamp, and buffer amplifier applications. For example, the LMV321IDCKTG4 can be used to amplify and filter signals in medical ultrasound, electrocardiography (ECG) and magnetic resonance imaging (MRI). It can also be used as a driver and feedback amplifier in audiometers and industrial control systems, as well as in power supplies, audio power amplifiers, and motor control. The LMV321IDCKTG4 can also be used in driving, sensing and monitoring applications such as humidity and air pressure monitoring, solar panel and wind turbine sensing, gas metering, vehicle diagnostics, and industrial explosion protection. Additionally, it can be used for measuring and controlling temperatures, measuring and controlling pressure, as well as controlling current and voltage.

Working Principle

The LMV321IDCKTG4 consists of three stages – two stages combined to form an operational transconductance amplifier (OTA) and one stage that acts as a buffer amplifier. The first stage is a voltage-controlled OTA, responsible for amplifying the input signal. It provides a wide range of gains and output ranges, as well as low-noise operation. The second stage is a buffer amplifier, which provides a constant output level regardless of the input signal level. In addition, the buffer amplifier removes any oscillation or instability caused by the OTA’s bandwidth. The final stage is the output amplifier, which provides a low-noise output signal.

Conclusion

The LMV321IDCKTG4 is a three-stage amplifier, with one stage that acts as a buffer and the other two stages combined to form an OTA. It is specifically designed for precision, low-noise operation and has a wide range of gains and output ranges, making it suitable for a variety of instrumentation, OPamp, and buffer amplifier applications. The amplifier can be used for driving, sensing and monitoring applications, as well as for measuring and controlling temperatures, measure and controlling pressure, and controlling current and voltage.

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