TLC2654C-8D

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The TLC2654C-8D is a bipolar input, quad op-amp IC with an array of one rail-to-rail input and four rail-to-rail outputs. This IC is part of the “Quadruple Difference Amplifier” or “Quad Op-Amp” family from TI. It is designed to provide precision, low-power performance in a wide range of instrumentation and control applications. The TLC2654C-8D is suitable for applications including precision current sensing and limiting, precision active filters, isolation amplifiers, unity gain buffers and precision pulse generators.

The circuit of TLC2654C-8D includes 4 independent amplifiers, 4 sets of differential inputs, 1 reference potential on-chip, 3 rail-to-rail input stages and 4 rail-to-rail output stages. It is available in 8-pin PDIP package and has a power supply range from 2.7V to 3.6V DC. In addition, the wide supply voltage range of 3V-15V offers flexibility in a variety of applications. The output offset voltage of TLC2654C-8D is 75uV typical.

In terms of power efficiency, the TLC2654C-8D provides 25mA/channel in shutdown mode, which is significantly lower than other quad op-amps in its category. Low-power operation is achieved due to its high-gain, low-voltage operation, and shutdown feature. The output drift of the amplifier is 0.1uV/deg C, and the unity gain bandwidth is 4MHz. Furthermore, the TLC2654C-8D features an operating temperature range from -40°C to 105°C, with a maximum input offset current of 200nA.

The TLC2654C-8D can be used in a wide range of instrumentation and control applications, with its flexibility and precision performance. Examples of application include precision current sensing and limiting, isolation amplifiers, unity gain buffers, active filters, and precision pulse generators. TLC2654C-8D can be used for current sensing and limiting, where it can output a signal proportional to the current in the loop. This signal can be fed to an analog-to-digital converter to get a digital representation of the current. Furthermore, it can be used to isolate and amplify signals in applications such as audio signal processing, video signal processing and medical instrumentation.

The working principle of TLC2654C-8D is based on its integrated quad differential amplifiers. The input and output stages are rail-to-rail current-input amplifiers with high speed, low distortion and low power consumption. The design of these amplifiers is based on the bipolar current source, which is highly stable and provides low noise, excellent matching and minimal output P-N ratio. The differential amplifiers are capable of providing high gain with low power consumption, as well as low input offset voltage and wide common-mode range. The output swing of the amplifiers is also rail-to-rail, and the maximum operating bandwidth is 4MHz, making it suitable for precision applications.

In summary, the TLC2654C-8D is an ideal choice for a variety of instrumentation and control applications. This quad op-amp IC provides precision, low-power performance in a wide range of applications, with its array of one rail-to-rail input and four rail-to-rail outputs, low-power operation, low input offset voltage and wide common-mode range. Furthermore, its power efficiency and wide operating temperature range make it suitable for precision pulse generators and active filters.

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