Patent ID: 7330064

Claim:
A resistive ladder circuit comprising: a plurality of rung resistances, including: a plurality of parallel resistances, each resistance in said plurality of parallel resistances having a substantially identical rung resistance value, and a first resistance in parallel with said plurality of parallel resistances and having a first resistance value; a first stile including a respective second resistance connecting respective first ends of respective adjacent ones of said rung resistances, each of said second resistances having a second resistance value; and a second stile comprising a conductor connected to respective second ends of said rung resistances; wherein: each said first end of each said rung resistance is a ladder input of said resistive ladder circuit; said resistive ladder circuit has a ladder output across said first and second stiles at an end opposite said first resistance; said second resistance value is a fraction of said first resistance value; and said rung resistance value is substantially equal to a product of (a) said first resistance value and (b) 1 plus an inverse of said fraction.