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Step 1 of 4 11.003E The gain change is 10% as the operating temperature changes from 25 °C to 75 It is required to constrain the change to 0.1% by applying negative feedback. Refer to equation 10.9 in the text book. Substitute 0.1% for and 10% 0.1 = 10 Step 2 of 4 Determine the value of closed loop gain of the amplifier. Substitute 1000 for A and 100 for 1+AB. = 10 V/V Therefore, the value of largest possible closed loop gain is 10V/V Step 3 of 4 Determine the overall gain of three feedback amplifiers in cascade. Substitute 10 for = 1000 V/V Therefore, the overall gain of three feedback amplifiers in cascade is 1000 V/V Step 4 of 4 The maximum variability for a single stage amplifier is, 0.1% Determine the maximum variability for three feedback amplifiers in cascade. Maximum 3(0.1%) Therefore, the maximum variability is 0.3%