pCC amplifier characterization. (a) The array’s median Vamp,DC vs. Vs,1 for each of the 1-to-7 feedback dp options (without the Vs,4 dp). (b) Measurements of the extracellular and intracellular configurations: gain vs. frequency for 32 pixels, input referred noise for a single example pixel, and input referred noise integrated from 1 Hz to 4.7 kHz across the array.