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High CMRR Instrumentation Amplifier (Schematic and Layout) design for biomedical applications

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Instrumentation amplifiers are intended to be used whenever acquisition of a useful signal is difficult. IA’s must have extremely high input impedances because source impedances may be high and/or unbalanced. bias and offset currents are low and relatively stable so that the source impedance need not be constant. Balanced differential inputs are provided so that the signal source may be referenced to any reasonable level independent of the IA output load reference. Common mode rejection, a measure of input balance, is very high so that noise pickup and ground drops, characteristic of remote sensor applications, are minimized.Care is taken to provide high, well characterized stability of critical parameters under varying conditions, such as changing temperatures and supply voltages. Finally, all components that are critical to the performance of the IA are internal to the device. The precision of an IA is provided at the expense of flexibility. By committing to the one specific task of
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Water Softener with NE555

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Water Softener with NE555

With the intention of Water Softener Circuit is based next to a practice to remove otherwise neutralize the brackish appearing in hose, and shield the pipes next to native soil having the status of well as the washing apparatus before our selves from brackish. Its called dampen softener and its automated circuit using two NE555 timer chips. The cost of parts is near 10$ and its very at ease to build it.

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