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QT110-DG Datasheet(PDF) 1 Page - Quantum Research Group |
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QT110-DG Datasheet(HTML) 1 Page - Quantum Research Group |
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1 / 12 page  lQ QT110 QTOUCH™ SENSOR IC APPLICATIONS - Elevator buttons Consumer electronics Access systems Pointing devices Appliance control Security systems Light switches Industrial panels The QT110 charge-transfer (“QT’”) sensor IC is a self-contained digital IC used to implement near-proximity or touch sensors. It projects sense fields through almost any dielectric, like glass, plastic, stone, ceramic, and wood. It can also turn small metal-bearing objects into intrinsic sensors, making them respond to proximity or touch. This capability coupled with an ability to self-calibrate continuously leads to entirely new product concepts. The QT110 is designed specifically for human interfaces, like control panels, appliances, toys, lighting controls, or anywhere a mechanical switch or button may be found; they may also be used for some material sensing and control applications provided that the presence duration of objects does not exceed the recalibration timeout interval. A piezo element can also be connected to create a feedback click sound. This IC requires only a common inexpensive capacitor in order to function. Average power consumption is under 20 µA in most applications, allowing battery operation. The QT110 employs digital signal processing techniques pioneered by Quantum, designed to make it survive real-world challenges, such as ‘stuck sensor’ conditions and signal drift. Sensitivity is digitally determined for the highest possible stability. No external active components are required for operation. The device includes several user-selectable built-in features. One, toggle mode, permits on/off touch control for example for light switch replacement. Another makes the sensor output a pulse instead of a DC level, which allows the device to 'talk' over the power rail, permitting a simple 2-wire twisted-pair interface. Quantum’s unique HeartBeat™ signal is also included, allowing a host controller to continuously monitor sensor health. By using the charge transfer principle, the QT110 delivers a level of performance clearly superior to older technologies in a highly cost-effective package. lq ©1999-2004 Quantum Research Group QT110 R1.04/0405 Less expensive than many mechanical switches Projects a ‘touch button’ through any dielectric 100% autocal for life - no adjustments required No active external components Piezo sounder direct drive for ‘tactile’ click feedback LED drive for visual feedback 2.5 ~ 5V single supply operation 10 µA at 2.5V - very low power drain Toggle mode for on/off control (via option pins) 10s or 60s auto-recalibration timeout (via option pins) Pulse output mode (via option pins) Gain settings in 3 discrete levels Simple 2-wire operation possible HeartBeat™ health indicator on output Pb-Free packages - QT110-ISG -400C to +850C QT110-DG - 00C to +700C 8-PIN DIP SOIC TA AVAILABLE OPTIONS (Pb-FREE) Sns2 Vss Sns1 Gain Opt2 Opt1 Out Vdd 1 2 3 45 6 7 8 |
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Similar Description - QT110-DG |
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