Signal chain with embedded power management

A system for processing a signal in a signal chain having decentralized embedded power management of components of the signal chain, the system comprising:

• a sensor circuit, including or coupled to a sensor, to generate a measurement signal that is indicative of a physical quantity;
• a conditioning circuit coupled to an output of the sensor circuit to generate an adjusted measurement signal according to an input circuit criterion;
• and
• a signal converter circuit coupled to the conditioning circuit to convert a sample of the adjusted measurement signal to a digital signal, the signal converter circuit comprising:
• a first control circuit to provide a first control signal from the signal converter circuit to power-on the conditioning circuit and to power-off the signal converter circuit responsive to providing first control signal to the conditioning circuit;
• and
• a second control circuit to provide a second control signal from the conditioning circuit to the signal converter circuit to power-on the signal converter circuit responsive to the conditioning circuit providing a second control signal corresponding to generating the adjusted measurement signal.

A method of operating a signal chain having decentralized embedded power management of components, the method comprising:

• providing a first control signal from a signal converter circuit to a signal conditioning circuit, the first control signal providing power to the signal conditioning circuit to generate a measurement signal;
• powering off the signal converter circuit responsive to providing the first control signal;
• obtaining a second control signal from the signal conditioning circuit responsive to the signal conditioning circuit generating an adjusted measurement signal using the measurement signal;
• and
• powering on the signal converter circuit and obtaining a sample of the adjusted measurement signal responsive to receiving the second control signal.