0. We are designing an ECG circuit that has three parts, including (1) Instrumentation Amplifier (2)...

0. We are designing an ECG circuit that has three parts, including (1) Instrumentation Amplifier (2) High-pass filter (3) Low-pass filter. Each part should have the gain of 10, so the entire circuit should have the gain of 1000. We will add a LED driver at the end to be lit when detecting heartbeat.

Design

1. Design a differential amplifier with the gain equal to one and use 10k? for its feedback resistor. Calculate the resistor value on the non-inverting end with the actual measurement of all other resistors and combine up to 4 resistors to achieve the best CMRR.

2. Add the non-inverting front-end circuit to the differential amplifier designed in step 1 to create an instrumentation amplifier. The instrumentation amplifier requires a gain of 10.

Expert Solution

Manojponduru answered 2 years ago

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