| Abstract: Various technologies pertaining to a high-impedance current source are
described herein. The current source outputs a substantially constant
current by way of a first transistor that draws current from a supply.
The current source is configured to feed back noise from the supply to a
feedback resistor at an input of an operational amplifier (op-amp) by way
of a second transistor. The feedback resistor and the op-amp are
configured such that responsive to receiving the supply noise feedback,
the op-amp drives a gate voltage of the first transistor to cause the
first transistor to reject the supply noise and cause the output of the
current source to remain substantially constant. |
| Filed: 7/26/2017 |
| Application Number: 15/660296 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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