TL3474IDR

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TL3474IDR is a low power amplifier designed for a broad range of instrumentation, operational amplifier, buffer and power amplifier applications. It is designed to provide excellent accuracy and wide bandwidth, as well as low impedance input, low noise figure and excellent ripple rejection. It is available in 2-pin and 4-pin packs and is ideal for applications needing low-input voltage, high-output-power, gain stability, and symmetrical amplification.

Application Field

The TL3474IDR is recommend for use in general purpose audio and instrumentation amplifiers, operational amplifiers, buffer amplifiers, power amplifiers and a broad range of professional and industrial electronics. Its features makes it highly suitable for use in medical instrumentation, automotive, industrial and process control, and avionics systems.

Working Principle

The TL3474IDR operation is based on the two-stage topology, which features a high-impedance input stage and a low-impedance output stage. An external compensation network is required to stable the closed-loop gain, while the ground-referenced input stage is used to improve the amplifier stability and provide a low source impedance. The output stage provides high gain and high linearity, with a low output impedance. The high gain and wide bandwidth of the amplifier make it broadly suitable for a range of professional applications.

Performance

The performance of the TL3474IDR depends on a range of factors such as supply voltage, feedback resistance, gain setting, load impedance and input voltage. The amplifier offers low input voltage noise (1.5 nV/√Hz) and high power output (±33 dBm). It also boasts wide bandwidth (1 MHz) and excellent ripple rejection (85 dB). This ensures a reliable connection, low distortion, and excellent signal-to-noise ratio.

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