Datasheet > QT240

QT240

更新时间： 2024-02-17 09:07:15

品牌	Logo	应用领域
昆腾 - QUANTUM		传感器
页数	文件大小	规格书
12页	258K
描述
4 KEY QTOUCH SENSOR IC

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中文翻译

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技术参数
数据手册

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QT240 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.59	湿度敏感等级：	3
Base Number Matches：	1

QT240 数据手册

QT240

4 KEY QTOUCH™ SENSOR IC

Four independent charge-transfer (‘QT’) touch keys

Individual outputs per channel - active high

Projects prox fields through any dielectric

Sensitivity easily adjusted on a per-channel basis

100% autocal for life - no adjustments required

3.9V ~ 5.5V single supply operation

10s, 60s, infinite auto-recal timeout (strap options)

Sync pin for line sync to suppress noise

Spread spectrum operation

SNS2

SNS2K

SNS1

SNS3K

SNS3

SNS4K

SNS4

n.c.

SNS1K

OUT1

QT240

20-SSOP

OUT2

OSC

OUT3

VDD

Pin options for auto recalibration timings

Extremely low cost per key

20-SSOP Pb-free package

VSS

/RES

OUT4

SS/SYNC

n.c.

APPLICATIONS

PC Peripherals

Appliance controls

Security systems

Access systems

Pointing devices

Instrument panels

Gaming machines

Backlighted buttons

The QT240 charge-transfer (“QT’”) QTouch IC is a self-contained digital sensor IC capable of detecting near-proximity or touch

on 4 electrodes. It allows electrodes to project independent sense fields through any dielectric like glass, plastic, stone,

ceramic, and wood. It can also turn metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch.

This capability coupled with its continuous self-calibration feature can lead to entirely new product concepts, adding high value

to product designs.

Each of the channels operates independently of the others, and each can be tuned for a unique sensitivity level by simply

changing its sample capacitor value. Two speeds are supported, one of which consumes only 90µA of typical current at 4V.

Unique among capacitance sensors, the device incorporates spread spectrum modulation for unsurpassed EMC compliance.

The devices are designed specifically for human interfaces, like control panels, appliances, gaming devices, lighting controls,

or anywhere a mechanical switch or button may be found; they may also be used for some material sensing and control

applications.

These devices feature a SYNC pin which allows for synchronization with additional similar parts and/or to an external source to

suppress interference. This pin doubles as a drive pin for spread-spectrum modulation. Option pins are provided which allow

different timing and feature settings.

The RISC core of these devices use signal processing techniques pioneered by Quantum which are designed to survive

numerous real-world challenges, such as ‘stuck sensor’ conditions, component ageing, moisture films, and signal drift.

By using the charge transfer principle, these devices deliver a level of performance clearly superior to older technologies yet

are highly cost-effective.

AVAILABLE OPTIONS

T_A

SSOP-20

-40⁰C to +85⁰C

QT240-ISS-G

QT240R R1.10/0905

12 3 4 5 6 7...12

中文翻译

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与QT240相关器件

型号	品牌	获取价格	描述	数据表
QT240-IG	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT240-ISSG	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT240-ISS-G	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT24C-SERIES	ETC	获取价格	Peripheral IC
QT24E-SERIES	ETC	获取价格	Peripheral IC
QT24HC-SERIES	ETC	获取价格	Peripheral IC
QT24T-SERIES	ETC	获取价格	Peripheral IC
QT2C-SERIES	ETC	获取价格	Peripheral IC
QT2E-SERIES	ETC	获取价格	Peripheral IC
QT2HC-SERIES	ETC	获取价格	Peripheral IC

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