Similar frequencies but possible functional and migratory defects in Treg subpopulations in severe or early-onset preeclampsia

This paper presents sub-threshold, bulk-driven two-stage cascode compensated operational transconductor, which drive load up to 60 pF. The input core in the first stage uses a bulk-driven source-degenerated, gate-regenerated class AB flipped voltage follower (FVF), which ensures rail-to-rail linear input signal drive capability in its unity gain configuration. The self-cascode load of input stage followed by a common source (CS) second stage having simple current source load, have enhanced overall gain around 100 dB at 1 mHz. Instead of Miller compensation, cascode compensation has been implemented by using two capacitors (CC/2) each of value 4 pF in this OTA. It has increased its phase margin and gain bandwidth as compared to Miller compensation, under identical load and total compensation capacitors. It ensured better rail-to-rail linearity (THD