A passive laser-trimming technique to improve the linearity of a 10-bit D/A converter
- 1 December 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 11 (6) , 789-794
- https://doi.org/10.1109/JSSC.1976.1050819
Abstract
The development of a new laser-trim technique is described. Metal links, which are arranged to provide incremental adjustments to critical circuit parameters, are cut by a laser. Trimming operations are monitored and controlled by means of a computer program. A comparison is made between currently used trimming methods. An application, to improve the linearity of a 10-bit D/A converter, is described. This trimming technique, which is implemented so that its effects track temperature and reference current variations, allows the converter to be adjusted for better than /spl plusmn/0.05 percent linearity by appropriately modifying the ladder termination voltages.Keywords
This publication has 4 references indexed in Scilit:
- Stability Analysis of Laser Trimmed Thin Film ResistorsIEEE Transactions on Parts, Hybrids, and Packaging, 1975
- Algorithmic Trimming on Active CircuitryIEEE Transactions on Parts, Hybrids, and Packaging, 1974
- A self-contained 10-bit monolithic D/A converterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1973
- A complete monolithic 10-bit D/A converterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1973