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OPA124系列低输入电流FET运算放大器与开关型积分器的噪
消耗积分:5 |
格式:rar |
大小:75 |
2009-06-03
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Low-input current FET operational amplifiers are universally
used to monitor photodetector, or more commonly
photodiode currents. These photodetectors bridge the gap
between a physical event, light, and electronics. There are a
variety of amplifier configurations to select from and the
choice is based on noise, bandwidth, offset, and linearity.
The most popular design approach is shown in Figure 1. A
considerable amount has been written on the performance of
this traditional transimpedance amplifier. This topology has
dominated applications such as CT scanners, star-tracking
instruments, electron microscopes, etc., where a light-tovoltage
conversion is required.
used to monitor photodetector, or more commonly
photodiode currents. These photodetectors bridge the gap
between a physical event, light, and electronics. There are a
variety of amplifier configurations to select from and the
choice is based on noise, bandwidth, offset, and linearity.
The most popular design approach is shown in Figure 1. A
considerable amount has been written on the performance of
this traditional transimpedance amplifier. This topology has
dominated applications such as CT scanners, star-tracking
instruments, electron microscopes, etc., where a light-tovoltage
conversion is required.
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