TLV379IDBVR

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The TLV379IDBVR is an instrumentation amplifier with integrated buffer/rail-to-rail output stage designed for computer networking, medical and consumer applications. It has a wide operating temperature range (from -40 to +85 degrees Celsius), is available in small packages, and offers low power consumption (5.5 mA). The TLV379IDBVR is ideal for use in multichannel, low bandwidth, low power systems due to its precise current and voltage control, high frequency capability (100 MHz gain bandwidth), and low noise performance.

The instrumentation amplifier of the TLV379IDBVR works by feeding a single input signal into two inputs, an inverting input and a non-inverting input, and then amplifying the difference of the two inputs. The advantage of the instrumentation amplifier is that it amplifies the precise differences between two signals while rejecting any common-mode signals that may be on the two signals. It is a high-gain, differential amplifier that combines three operational amplifiers (op amps) to offer accurate and precise gain control of input signals.

The instrumentation amplifier has three fundamental characteristics which are Gain, Input Impedance and CMRR (common-mode rejection ratio). The Gain of the instrumentation amplifier dictates how much the output is amplified, which usually ranges from 10 to 10,000. The Input Impedance is the resistance of the input port, and it usually ranges from 10,000 to 100M ohms. The CMRR is the ability of the instrumentation amplifier to reject any common-mode signals. The higher the CMRR, the better the instrumentation amplifier is at rejecting any unwanted noise or interference.

The integrated buffer/rail-to-rail output stage of the TLV379IDBVR consists of an op amp, a power amplifier and a voltage regulator. The buffer/rail-to-rail output stage is designed to drive a large capacitive load while providing a constant gain and output level up to the maximum output voltage. By providing an output level independent of load current, the buffer/rail-to-rail output stage helps prevent system instability throughout the entire dynamic range of the amplifier.

The TLV379IDBVR offers several features that make it suitable for many applications such as precision instrumentation, communications, and consumer electronics. Its wide operating temperature range and low power consumption make it suitable for high temperature and portable applications, while its buffer/rail-to-rail output stage offers high frequency performance, precise gain control and low noise performance. The TLV379IDBVR is an ideal amplifier for systems that require precise current and voltage control, high frequency capability, and low noise performance.

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