Managing reference voltages in memory systems

A memory system comprising:

• a memory;
• a memory controller coupled to the memory;
• and
• a bandgap reference circuit coupled to the memory controller and configured to provide a bandgap reference voltage to the memory controller for performing one or more actions on the memory, the bandgap reference circuit comprising:
• an operational amplifier configured to receive input voltages and a supply voltage and output a gate control voltage based on the input voltages and the supply voltage;
• an output circuitry configured to receive the gate control voltage from the operational amplifier and the supply voltage, provide the input voltages to the operational amplifier, and output the bandgap reference voltage;
• and
• a compensation circuitry coupled to the output circuitry and configured to output a compensation current to compensate the output circuitry such that the bandgap reference voltage is substantially constant,
• wherein the output circuitry is configured to generate the bandgap reference voltage based on the gate control voltage and the compensation current.

A method of managing reference voltages, the method comprising:

• receiving, by an operational amplifier, input voltages from an output circuitry and a supply voltage;
• outputting, by the operational amplifier and based on the input voltages and the supply voltage, a first control voltage to the output circuitry;
• compensating, by a compensation circuitry, the output circuitry by outputting a compensation current to the output circuitry, the compensation current being based on one of the first control voltage, a second control voltage received by the operational amplifier, or a third control voltage provided by an external circuit to the compensation circuitry;
• and
• outputting, by the output circuitry and based on the first control voltage and the compensation current, a reference voltage that is substantially constant.