Switching gain amplifier circuit composed of the INA115

Published:2011/6/27 4:20:00 Author:Rebekka | Keyword: Switching gain amplifier | From:SeekIC

Switching gain amplifier circuit composed of the INA115 provides a different gain, it is shown as above. The lNA115 is a low cost general instrumentation amplifier, the circuit does not require external imbalance . It can be obtained a very high accuracy. The switching gain amplifier circuit composed of the HI-509 and INA115. R1 ~ R4 are gain resistances. It selects and calculates different gain resistors. You can gain access to different gear sizes. The formula is: A = 1 +50 kΩ / RG, A is the gain, RG is the gain resistor.



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