Patent ID: 11863169
Assignee: SOCIONEXT INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A current-mode circuit, comprising:
one or more switch units, each of which comprises a field-effect transistor connected in series with an impedance and is configured to carry a given current, wherein for at least one of the one or more switch units the impedance is a variable impedance; and
an adjustment circuit configured, for the at least one of the one or more switch units, to adjust an impedance of the variable impedance to calibrate a predetermined property of the at least one of the one or more switch units which is dependent on the field-effect transistor,
wherein, for the at least one of the one or more switch units:
the variable impedance comprises a first resistor connected in parallel with a second resistor, the second resistor being a variable resistor; and
the adjustment circuit is configured to adjust the resistance of the variable resistor to calibrate the predetermined property,

wherein, for the at least one of the one or more switch units:
the first resistor comprises a polysilicon resistor or a diffusion resistor; and/or
the variable resistor comprises a calibration transistor, and

wherein the first resistor has a resistance of X ohms and the second resistor is controllable to have a resistance within a defined range of resistances, wherein:
a mid-range resistance of the defined range of resistances is Y ohms, where 5≤Y/X≤20, or where 10≤Y/X≤14; or
the range of resistances is approximately from 5.X ohms to 25.X ohms, or approximately from 6.X ohms to 20.X ohms.