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Partname: | QT140-D |
Description: | 0.5-7.0V; 20mA; 4 and 5 key QTouch sensor IC. For industrial panels, security systems, access systems, pointing devices, PC peripherals, backlighted buttons |
Manufacturer: | |
Package: | DIP |
Pins: | 28 |
Oper. temp.: | 0 to 70 |
Datasheet: | PDF (722K). Click here to download *) |
These devices require only a common inexpensive capacitor per sensing channel in order to function. They also offer patent pending AKSTM Adjacent Key Suppression which suppresses touch from weaker responding keys and allows only a dominant key to detect, for example to solve the problem of large fingers on tightly spaced keys. These devices also have a SYNC I/O pin which allows for synchronization with additional similar parts and/or to an external to suppress interference. |
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Click here to download QT140-D Datasheet*) |
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