Abstract: A current-controlled differential input comparator having a double sided hysteresis is provided, including a differential input comparator having a first comparator input, a second comparator input, a comparator output, and a switching threshold, wherein the switching threshold causes the comparator output to have a first output state when the first comparator input is greater than the second comparator input and to have a second output state when the first comparator input is less than the second comparator input, a first hysteresis resistor communicating with the first comparator input, a second hysteresis resistor communicating with the second comparator input, an inverter connected to the comparator output, the inverter generating an inverted comparator output, and a current supply connected to the comparator output and to the inverted comparator output, the current supply being capable of switching a first hysteresis current to the first hysteresis resistor and a second hysteresis current to the second h