SN761666DGK

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SN761666DGK is a monolithic integrated video amplifier with differential-input and output, packaged in the standard 8-pin SOIC package. It is designed to provide a low-cost, high-performance amplifier solution for video applications. Its differential-input architecture enables it to drive long cables with minimal signal integrity loss and noise generation. It has high performance, low power consumption and low EMI characteristics that make it ideal for use in a variety of video and motion graphic applications. Its adjustable gain, adjustable output level and ability to drive standard and high-definition video are features that make it a popular choice in this field.

The SN761666DGK is designed to work with standard video signals and provides an adjustable gain from 6 dB up to 18 dB, allowing for the optimization of signal levels and signal-to-noise ratio. It also provides a low-noise, low-offset differential output for driving cables and can drive signals up to 3.3 Vpp into 75 Ω loads. The SN761666DGK is capable of taking a single-ended signal and converting it to a differential signal or taking a differential signal and converting it to a single-ended signal.

In addition, the SN761666DGK provides an adjustable output level from 0 to 1.5 Vpp and can drive signals up to 4 Vpp into 75 Ω loads. This allows it to drive high-resolution signals, such as those used in HDTV and motion graphics applications. The adjustable output level is also useful for matching signal levels between endpoints. The SN761666DGK is highly recommended for applications that require high-quality, low-power video amplifiers.

The SN761666DGK operates from a single 3.3 V supply and has a wide input voltage swing from 0.8Vpp to 3.3Vpp, making it suitable for use in a variety of applications. It is also highly EMI friendly, meaning it will not cause interference with nearby electronics. The SN761666DGK has an operating temperature range of -40°C to +85°C, making it suitable for use in a wide range of video applications.

The working principle of the SN761666DGK is based on the differential pair architecture of the amplifier, which enables it to provide a high input impedance and low output impedance. The differential input stage uses the positive and negative inputs to the amplifier to amplify the incoming signal and generate a differential output voltage across the output of the amplifier. The output can then be adjusted with an external amplifier or an internal resistor network to achieve the desired level. The SN761666DGK also includes two operational amplifiers, which provide gain and an adjustable offset voltage. Finally, the SN761666DGK includes a saturated diode protection circuit which provides protection from over-current and over-voltage events.

The SN761666DGK is ideal for a variety of video and motion graphic applications, such as HD-SDI, DVI, HDMI, digital signage, analog video processors and encoders, motion graphic systems, broadcast video systems, and video surveillance. Its wide gain and low noise performance make it suitable for a variety of applications in these fields. Its EMI friendly performance, adjustable output level and adjustable gain make it well-suited for applications that require a high level of performance and reliability.

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