Patent ID: 8710898
Filing Date: 2014-04-29
Classification: G05F,H03F

Abstract:
1. Apparatus comprising a reference voltage generator (e.g., 100 , for generating a reference voltage signal (e.g., V BG ), the reference voltage generator comprising: an operational amplifier (op amp) (e.g., a first resistance (e.g., R a second resistance (e.g., R a first transistor device (e.g., Q a third resistance (e.g., R a second transistor device (e.g., Q a curvature compensation adjustment circuitry selectively connected to control nodes of the first and second transistor devices, wherein the first and second resistances and curvature compensation adjustment circuitry are trimmable; logic circuits and programmable switches (e.g., wherein the programmable tester and the logic circuits and programmable switches support a characterization phase and a production phase, such that: during the characterization phase, a design-specific trim value is determined for the second resistance level (e.g., ΔR during the production phase, with the second resistance level (e.g., ΔR