Quantizing circuits with variable reference signals
Systems, methods, and devices are disclosed, such as an integrated semiconductor device that may include a data location coupled to an electrical conductor, a delta-sigma modulator coupled to the electrical conductor, a counter coupled to an output of the delta-sigma modulator, and an interfuser coupled to an output of the counter. In some embodiments, the interfuser is configured to receive two or more counts from the counter and read data conveyed by the data location based on the two or more counts.
1. A device, comprising:
a data location;
an analog-to-digital converter coupled to the data location;
a counter coupled to an output of the analog-to-digital converter; and
an interfuser coupled to the counter, wherein the interfuser is configured to receive two or more counts from the counter and read data conveyed by the data location based on the two or more counts.
2. The device of claim 1 , wherein the data location comprises a floating gate transistor, a phase change memory element, or a photo diode.
3. The device of claim 1 , wherein the analog-to-digital converter comprises a delta-sigma modulator.
4. The device of claim 1 , wherein the interfuser is configured to read the data conveyed by the data location based on a product of one of the two or more counts and a weighting constant.
5. The device of claim 1 , wherein the interfuser is configured to read the data conveyed by the data location based on a slope indicated by the two or more counts.
6. The device of claim 3 , comprising a controller coupled to the delta-sigma modulator, the counter, and the interfuser.
7. The device of claim 6 , wherein the controller is configured to reset the counter after a parameter of the data location changes.
8. The device of claim 6 , wherein the controller is configured to vary a reference voltage of the delta-sigma modulator after the counter generates a first count.
9. The device of claim 8 , wherein the controller is configured to signal the interfuser when the controller varies the reference voltage of the delta-sigma modulator.
10. A system comprising:
a device comprising:
a plurality of data locations;
a quantizing circuit coupled to the plurality of data locations, wherein the quantizing circuit comprises an interfuser.
11. The system of claim 10 , wherein the quantizing circuit comprises:
an analog-to-digital converter coupled to the plurality of data locations; and
a digital filter coupled to an output of the analog-to-digital converter and an input of the interfuser.
12. The system of claim 11 , wherein the analog-to-digital converter comprises a delta-sigma modulator.
13. The system of claim 11 , wherein the digital filter comprises a counter.
14. The system of claim 10 , wherein each of the plurality of data locations comprise a floating gate transistor.
15. The system of claim 10 , wherein the interfuser comprises memory configured to store a first value from the quantizing circuit while a second value is being generated by the quantizing circuit.
16. The system of claim 10 , wherein:
the quantizing circuit is configured to sense one of the plurality of data locations using both a first reference voltage and a second reference voltage and output both a first value and a second value corresponding to the first reference voltage and the second reference voltage, respectively; and
the interfuser is configured to combine the first value with the second value to read data conveyed by the one of the plurality of data locations.
17. The system of claim 10 , wherein the plurality of data locations comprise a memory device, wherein the memory device is coupled to a processor.
18. The system of claim 17 , wherein the memory device is disposed on a memory module comprising a plurality of memory devices.