ISL83085EIU

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The ISL83085EIU is an optimized CMOS 2.5V single-supply transimpedance amplifier (TIA) operational amplifier. Featuring 5.5pA Low Input Current and 25nA Low Bias Current, ISL83085EIU is suitable for low power, minimal input current applications such as optical communication systems, active filters, and sampling applications.

Applications:

1. Optical receivers: The ISL83085EIU is an ideal choice for optical receivers due to its ultra-low input current (<5.5 pA) and low bias current (<25 nA). The excellent input common mode range supports a rail-to-rail signal even at single supply voltage. Furthermore, its fast speed, up to 3ns settling time, and rail-to-rail output capability make it an ideal choice for optical receivers.

2. Optical transceivers: This IC is an ideal choice for optical transceivers due to its excellent input common-mode range, low bias current, and fast speed. It can drive multiple data channels simultaneously and provide up to two global data channels, three local data channels, and two local reference channels. The excellent match in gain and phase across the channels minimizes data transmission error and ensures the reliable signal transmission.

3. Sampling and signal processing: The ISL83085EIU can support sampling frequencies up to 30MHz and signal processing with settling time of 5ns or less. Its low offset and high common mode rejection ratio make it ideal for sampling and signal processing applications.

Working Principle:

The ISL83085EIU consists of a transimpedance amplifier (TIA) and an amplifier buffer. The TIA is the core component that converts the incoming current signal into an output voltage signal. The amplifier buffer amplifies the signal and provides it to the output with lower output impedance. The TIA works on the principle of current-to-voltage conversion. When the input current signal is applied, the TIA converts it into an output voltage signal. This output voltage signal is then amplified by the amplifier buffer and provided to the output as a rail-to-rail voltage signal.

ISL83085EIU are low power, minimal input current transimpedance amplifiers, perfect for use in optical receivers, optical transceivers, sampling and signal processing applications. With extremely low input current and bias current leakage, it effectively reduces the power consumption and jitter of the circuit. It also boast excellent input common-mode range, allowing for a rail-to-rail signal even with single supply voltage. Furthermore, its fast speed and buffer amplifier make it suitable for precision circuits. As such, its being used increasingly in various industries, including automated test equipment, medical instruments, optical communication systems and automotive control applications.

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