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| Partname: | QT140-AS |
| 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: | SSOP |
| Pins: | 28 |
| Oper. temp.: | -40 to 105 |
| 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-AS Datasheet*) |
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