QT115-IS Atmel, QT115-IS Datasheet
QT115-IS
Specifications of QT115-IS
Related parts for QT115-IS
QT115-IS Summary of contents
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Less expensive than many mechanical switches ! ! ! ! Projects a ‘touch button’ through any dielectric ! ! ! ! Turns small objects into intrinsic touch sensors ! ! ! ! 100% autocal for life ...
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OVERVIEW The QT110 is a digital burst mode charge-transfer (QT) sensor designed specifically for touch controls; it includes all hardware and signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only a ...
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Multiple touch electrodes can be used, for example to create a control button on both sides of an object, however it is impossible for the sensor to distinguish ...
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Shielding Against Fringe Fields Figure 1-6 Sen se Sens e w ire U ns hielded Electrod e A ‘virtual capacitive ground’ can be created by connecting the QT110’s own circuit ground to: (1) A nearby piece of metal or metallized ...
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A deliberately added Cx capacitor can also ...
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ORCED ENSOR ECALIBRATION The QT110 has no recalibration pin; a forced recalibration is accomplished only when the device is powered up. However, supply drain is so low simple matter to treat the entire ...
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Figure 2-5 Eliminating HB Pulses G ATE OR MIC RO INPU 100p F O PT1 4 O PT2 2.2 IEZO COUSTIC RIVE A piezo drive signal ...
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The Gain input is designed to be floated for sensing one of the three gain settings. It should never be connected to ...
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Re2 functions to isolate the transient from the Vdd pin; values of around 1K ohms are reasonable. As with all ESD protection networks crucial that the transients be led away from the circuit. PCB ground layout is crucial; ...
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ABSOLUTE MAXIMUM SPECIFICATIONS Operating temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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DC SPECIFICATIONS Vdd = 3.0V 10nF 5pF, T Parameter Description V Supply voltage DD I Supply current DD V Supply turn-on slope DDS V Low input logic level IL V High input logic level HL ...
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Package type: 8pin Dual-In-Line Millimeters SYMBOL Min a 6.096 A 7.62 M 9.017 m 7.62 Q 0.889 P 0.254 L 0.355 L1 1.397 F 2.489 R 3.048 r 0.381 S 3.048 7.62 x 8.128 Y 0.203 Millimeters ...
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ORDERING INFORMATION PART QT110-D QT110-S QT110-IS QT110H-D QT110H-S QT110H-IS Quantum Research Group Ltd Enterprise House, Southampton, Hants SO14 3XB Tel: +44 (0)23 8045 3934 Fax: +44 (0)23 8045 3939 Notice: This device expressly not for use in any ...