LT1469CS8#PBF

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LT1469CS8#PBF, also known as the Texas Instruments’ Low Power CMOS, is a high-performance, low-power CMOS rail-to-rail operational amplifier. It differs from its predecessors in that it is designed to achieve unbeatable signal-to-noise ratios, dynamic range, and current consumption, making it very suitable for low-power applications. In addition, its low-power profile allows it to be well-suited for use in portable and medium-power audio applications that require high levels of performance.

The LT1469CS8#PBF application field is primarily wide-ranging, as it is suitable for use in buffering amplifiers, instrumentation amplifiers, audio amplifiers and active filters. Furthermore, the applications can range from industrial automation circuits, electrocardiograph and heart-beat oxygenation monitors, to data acquisition and control systems.

When it comes to working principle, this CMOS rail-to-rail output amplifier has plenty of features that can benefit the user. Namely, the LT1469CS8#PBF has an exceptionally wide voltage range and common-mode/input-output voltage that is ±10.5V, with a power supply voltage range of ±4.5V to ±18V. This means that it can be used in both bipolar and unipolar applications. Furthermore, the LT1469CS8#PBF is capable of operating with an input common-mode voltage of up to two diode drops below the negative power supply, making it able to function in both unipolar and bipolar applications.

In addition, the LT1469CS8#PBF is capable of having a wider dynamic range compared to previous designs. This is achieved by having a reduced input referred noise of 2.5 nV/√Hz, as well as having a wide drain-source range (320mV to 3.5V) and low distortion. As a result, the user can benefit from having clear audio and video signals in applications such as instrumentation, audio and video amplifiers.

Furthermore, the LT1469CS8#PBF has a low quiescent current (2.4 mA), which makes it ideal for low power operational circuit designs. This low quiescent current also enables the LT1469CS8#PBF to have an output drive capability of up to 140 kHz and a power supply rejection ratio of 130 dB at 10 kHz. This enables the user to have accurate readings in low voltage and low frequency applications.

The LT1469CS8#PBF also has a temperature range of - 40°C and + 105°C, aiding its users in high temperature or cold temperature applications. The output provided by this amplifier also has 90 dB of isolation between its two outputs, making it suitable for low frequency applications such as low power audio amplifiers and medical devices.

Other features of the LT1469CS8#PBF include an 11 MHz gain-bandwidth product, an output source/sink current of 25 mA, and an input offset voltage of only 2.5mV. As a result, this amplifier is capable of being used in many low-power and audio applications that require an output drive capability of up to 140 kHz, as well as having an exceptional dynamic range and low distortion.

Overall, the LT1469CS8#PBF is suitable for a wide range of low power applications, including buffering amplifiers, instrumentation, audio and video amplifiers and active filters, due to its low-power profile, wide voltage range, wide dynamic range, and exceptional signal-to-noise ratios. It is also capable of providing accurate readings in low voltage or low frequency environments, as well as having a wide range of output drive options and temperature ranges.

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