QT113B-ISG

QT113B-ISG Datasheet

Atmel QT113B

Part	Datasheet
QT113B-ISG	QT113B-ISG (pdf)

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Atmel QT113B 1-Channel Touch Sensor IC DATASHEET Number of Keys One Configurable as either a single key or a proximity sensor Economy Less expensive than many mechanical switches Only one external part required a low-cost capacitor Signal processing Consensus filter for noise immunity Sensitivity easily adjusted 100% autocal for life no adjustments required 10 s, 60 s, infinite auto-recal timeouts strap options Toggle mode for on/off control strap option Interface Digital output, active high Moisture tolerance Increased moisture tolerance based on hardware design and firmware tuning Power V to 5 V, 600 µA single supply operation Package 8-pin SOIC Applications Light switches, appliance control, access systems, elevator buttons, proximity sensor applications, security systems, pointing devices, consumer devices, mechanical switch or button Patents patented charge-transfer method HeartBeat monitors health of device Pinout and Schematic Pinout Configuration VDD OUT OPT1 OPT2 2 QT113B 7 VSS SNS2 SNS1 GAIN Pinout Descriptions Table Pin Listing Name OPT1 OPT2 GAIN SNS1 SNS2 Type P 0 P I Comments Supply Output Option selection 1 Option selection 2 Gain control Sense 1 Sense 2 Ground Input only OD Open drain output Output only, push-pull Ground or power If Unused, Connect To... See Table 3-1 on page 10 See Table 3-1 on page 10 See Table 2-1 on page 7 I/O Input/output QT113B [DATASHEET] Schematic Figure Basic Circuit to 5 V SNS2 OPT1 GAIN

PDF Datasheet Preview

Atmel QT113B
1-Channel Touch Sensor IC

DATASHEET

Number of Keys One Configurable as either a single key or a proximity sensor

Economy Less expensive than many mechanical switches Only one external part required a low-cost capacitor

Signal processing Consensus filter for noise immunity Sensitivity easily adjusted 100% autocal for life no adjustments required 10 s, 60 s, infinite auto-recal timeouts strap options Toggle mode for on/off control strap option

Interface Digital output, active high

Moisture tolerance Increased moisture tolerance based on hardware design and firmware tuning

Power V to 5 V, 600 µA single supply operation

Package 8-pin SOIC

Applications Light switches, appliance control, access systems, elevator buttons, proximity sensor applications, security systems, pointing devices, consumer devices, mechanical switch or button

Patents patented charge-transfer method HeartBeat monitors health of device

Pinout and Schematic

Pinout Configuration

VDD OUT OPT1 OPT2
2 QT113B 7

VSS SNS2 SNS1 GAIN

Pinout Descriptions

Table Pin Listing

Name

OPT1

OPT2

GAIN

SNS1

SNS2

Type P 0 P I

Comments Supply Output Option selection 1 Option selection 2 Gain control Sense 1 Sense 2 Ground

Input only

OD Open drain output

Output only, push-pull

Ground or power

If Unused, Connect To...

See Table 3-1 on page 10 See Table 3-1 on page 10 See Table 2-1 on page 7

I/O Input/output

QT113B [DATASHEET]

Schematic

Figure Basic Circuit
to 5 V

SNS2

OPT1

GAIN

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Datasheet ID: QT113B-ISG 519364