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US 11,422,577 B1Granted
Output reference voltage
AssigneeMicron Technology, Inc.
InventorLiuchun Cai
Life of this patent
Estimating the term…
Abstract
An example apparatus can be a low voltage bandgap circuit that includes a bandgap core portion. The bandgap core portion includes an operational amplifier (op-amp). The op-amp includes a PMOS input and an NMOS input. Further, the op-amp is a folded cascode op-amp. The bandgap core portion further includes a first diode coupled to the op-amp. The bandgap core portion further includes a second diode coupled to the op-amp through a resistor.
Claims20
An apparatus, comprising:
- a bandgap core portion comprising:
- an operational amplifier (op-amp), wherein:
- the op-amp comprises a PMOS input and an NMOS input;
- and
- the op-amp is a folded cascode op-amp;
- a first diode coupled to the op-amp;
- and
- a second diode coupled to the op-amp through a resistor.
5 more elements
An apparatus, comprising:
- a bandgap core portion comprising:
- an operational amplifier (op-amp), wherein:
- the op-amp comprises a PMOS input and an NMOS input;
- and
- the op-amp is a folded cascode op-amp;
- a first diode directly coupled to the op-amp;
- and
- a second diode coupled to the op-amp through a resistor;
- a bandgap startup circuit coupled to the bandgap core portion;
- and
- an output voltage portion coupled to the bandgap core portion.
8 more elements
A system, comprising:
- a memory sub-system comprising a memory array and an output reference voltage (ORV) circuit;
- and
- a processing device coupled to the memory-subsystem, the processing device to perform operations comprising:
- inputting a first signal from a first diode to an operational amplifier (op-amp), wherein:
- the first signal is based on an inverse proportional to absolute temperature (PTAT);
- and
- the op-amp is a folded cascode op-amp that comprises a PMOS input and an NMOS input;
- and
- inputting a second signal from a second diode through a resistor to the op-amp, wherein the second signal is proportional to absolute temperature (PTAT).
6 more elements
Dependencies are inferred from the claim text.