Patent ID: 7215176
Filing Date: 2007-05-08
Classification: G11C,H03M

Abstract:
1. An analog value adjustment circuit comprising: a fuse circuit that outputs fuse data whose value changes corresponding to whether first through Nth (N is an integer of two or more) fuse elements are in a cutting state, or in a non-cutting state; and an analog value output circuit that receives the fuse data from the fuse circuit, and outputs an analog value that is adjusted in a given adjustment range corresponding to the fuse data, wherein the analog value output circuit comprises: wherein when the fuse data from the fuse circuit is data indicating that all the first through Nth fuse elements are in the non-cutting state, the analog value output circuit outputs the analog value with a typical value that is a value between a maximum value and a minimum value in the given adjustment range, wherein in the ladder resistor circuit, the first through Kth taps are set so that the tape of a resistance of the resistor elements between taps becomes larger when being drawn closer to the first or Kth tap, and t he tap of the resistance of the resistor elements between taps becomes lower when being drawn closer to the Lth tap corresponding to the typical value.