Tom Li is a senior design engineer, Power Management ICs, with Advanced Analogic Technologies Inc. (AnalogicTech), Sunnyvale, Calif. He received a BSEE and an MSEE from Stanford University, Calif. Email address: info@analogictech.com
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May 11, 2006[Ideas For Design] Handy Expert Tip Simplifies Resistor Segments On ICs
For analog IC design engineers, using matched components in circuits is one of the keys to creating highly accurate circuits. I have worked on many types of power-management chips, and a small, yet very important, part of them would be the matched feedback resistors that contribute to output voltage accuracy. To optimize the matching of resistors on an IC, you would typically use multiple segments of the exact same size resistors. An advantage to this approach is that process...
