Micropower differential amplifier LT1990. Free Technical Library News

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LT1990 Micro Power Differential Amplifier

24.04.2004

LINEAR TECHNOLOGY has released the LT1990 micropower differential amplifier with an input voltage of up to +250 V. It is possible to select the gain in the range from 1 to 10.

The main application of the microcircuit is to connect powerful motor control systems to current sensors. The microcircuit has a frequency band of up to 100 kHz, is available in the S0-8 package.

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Mandatory disposal of satellites 06.10.2022

The US Federal Communications Commission (FCC) has approved new rules that require companies launching satellites into low Earth orbit to dispose of them within five years of completing missions. Under the old rules, companies had to dispose of satellites within 25 years of the completion of a mission.

Thus, the regulator intends to minimize the negative consequences of space debris in orbit. FCC chief Jessica Rosenworcel said 25 years is too long.

“There is no longer any reason to wait so long, especially in low Earth orbit. The second space age has arrived. To continue to develop, we need to do more cleaning up after ourselves,” she stressed.

Rosenworsel noted that about 1957 satellites weighing 10 tons have been launched since XNUMX, more than half of which are no longer in use. The new "five-year" rule, she said, "means more responsibility and less risk of collisions that increase orbital debris and the likelihood of space communications failures."

However, not everyone in the US approves this decision of the regulator. Members of the US House Science, Space and Technology Committee said in a letter that the FCC's unilateral decision "could create vague and potentially conflicting guidance" for the space industry. They suggested that the FCC explain its decision to the US Congress so that it would not have to resort to the Congressional Review Act (CRA) to reverse it.

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