Devices and circuits for voltage reference architectures that can increase the PSRR parameter by improving the saturation margin for an output transistor. For example, a device can include a current source coupled between a first power supply line and a circuit node, a voltage production circuit coupled between the circuit node and a second power supply line to produce a plurality of voltages respectively at voltage nodes thereof, a multiplexer coupled to the voltage nodes of the voltage production circuit and the output node and configured to select and output one of the voltages to the output node, and a control circuit configured to supply the one of the voltages to the circuit node.