Analysis
Digitally Programmable Potentiometer
Catalyst Semiconductor has added a new 32-tap device to its family of over 35 Digitally Programmable Potentiometers (DPP). The CAT5126 offers one-time wiper programmability via a simple two-wire serial interface, which enables system designers to set the wiper’s value after power-on and also disable the interface to prevent further adjustments. The device also offers the flexibility of not disabling the interface, in which case the system will always “power-on” to the programmed wiper position. In this mode, users can change the wiper position as necessary for the specific session and the modified value will not be stored.
The The CAT5126 digital potentiometer is priced at $0.53 each in 10,000 piece quantities. Samples are now available. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.
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