QT110-S Atmel, QT110-S Datasheet
QT110-S
Specifications of QT110-S
Related parts for QT110-S
QT110-S Summary of contents
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... C to +85 - +85 Quantum Research Group Ltd C HARGE Appliance control Access systems ! ! Security systems Pointing devices ! ! and electrode C S AVAILABLE OPTIONS SOIC 0 C QT110 QT110H QT110- QT110H-IS QProx™ ™ ™ ™ QT110 / QT110H -T T RANSFER OUCH Vdd 1 8 Out 2 7 Opt1 ...
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... The QT switches and charge measurement hardware functions are all internal to the QT110 (Figure 1-3). A 14-bit single-slope switched capacitor ADC includes both the required QT charge and transfer switches in a configuration that provides direct ADC conversion. The ADC is designed to ...
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... Figure 1-5), which is more than two orders of magnitude greater than that required to create a return path to the QT110 via earth. The QT110's PCB however can be physically quite small, so there may be little ‘free space’ coupling (Cx1 in Figure 1-5) between it and the environment to complete the return path ...
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... S The QT110 can be set for one of 3 gain levels using option pin 5 (Table 1-1). If left open, the gain setting is high. The sensitivity change is made by altering the numerical threshold level required for a detection ...
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... Intermediate levels of gain (e.g. between 'medium' and 'low' can be obtained by a combination of jumper settings with one or more of the above strategies QT110 SPECIFICS 2.1 SIGNAL PROCESSING The QT110 processes all signals using 16 bit math, using a number of algorithms pioneered algorithms are specifically designed to provide for high ...
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... Note that most 8051-based micros have only a weak pullup drive capability and will require true CMOS buffering. Any 74HC or 74AC series gate can directly power the QT110, as can most other microprocessors. Option strap configurations are read by the QT110 only on powerup. Configurations can only be changed by powering the QT110 down and back up again ...
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... If desired the LED can be connected from Out to ground, and driven on when the sensor is inactive, but only with less drive current (1mA). QT110H: This part is active-high works in reverse to that described above CIRCUIT GUIDELINES Figure 2-6 Damping Piezo Clicks with R ...
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... DMM. Repeat the test without a load to measure the capacitor's internal leakage, and subtract the internal leakage result from the voltage droop measured during the QT110 load test. Be sure the DMM is connected only at the end of each test, to prevent the DMM's impedance from contributing to the capacitor's discharge. ...
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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 medical or human safety related application without the express written consent of an officer of ...