ISL59605IRZ

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The ISL59605IRZ is a 900 MHz frequency range variable gain amplifier that is used in a broad range of linear video processing applications. The device is specially designed for low noise and when used in linear video processing applications, provides excellent signal to noise performance. The gain of the amplifier is set by a single external potentiometer and features a wide gain range of up to 60dB.The ISL59605IRZ amplifier includes an onchip calibration circuit to compensate for changes in the amplifier characteristics due to temperature drift. The device is also capable of handling signals up to 400 MHz and can be used in both linear and digital video processing applications.

The ISL59605IRZ operates as a differential amplifier, meaning that the input and output voltages of the device are measured as the difference between two input voltages or signals. The differential input stage is implemented using two transconductance amplifiers and an output buffer voltage amplifier. The two transconductance amplifiers, each consisting of a pair of differential pairs of transistors, are set in a complementary cascode configuration. The input section is followed by a programmable gain stage, which allows for a wide range of gain settings. The gain of the amplifier is set by a single digital control signal.

The ISL59605IRZ also uses a calibration circuit to compensate for changes in the amplifier characteristics due to temperature drift. The device includes an on-chip thermal diode, which senses the temperature of the device and adjusts the gain of the amplifier accordingly. As a result, the device is able to maintain a constant gain over temperature variations.

The ISL59605IRZ is designed for low noise and low power consumption, making it an ideal choice for linear video processing applications. The device is capable of handling signals up to 400 MHz and can be used with both single-ended and differential signals. The amplifier provides excellent signal to noise performance and is capable of providing a wide range of gain settings, up to 60 dB. The device is also thermally compensated, providing stable performance over temperature variations.

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