Adding an External (R1, C1) to Eliminate the Clock Feed through LTC1062, Instrumentation low pass Filter

Adding an External (R1, C1) to Eliminate the Clock Feed through and to Improve the High Frequency Attenuation Floor of the LTC1062, Versatile, DC Accurate, Instrumentation low pass Filter with Gain and Phase that Closely Approximate a 5'th Order Butterworth Filter