Datasheet > QT300

QT300

更新时间： 2024-11-04 03:39:31

品牌	Logo	应用领域
昆腾 - QUANTUM		转换器
页数	文件大小	规格书
14页	381K
描述
CAPACITANCE TO DIGITAL CONVERTER

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中文翻译

获取价格

数据手册

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QT300 数据手册

QT300

CAPACITANCE TO

DIGITAL

CONVERTER

ꢀ Capacitance to Digital Converter (CDC) IC

ꢀ Direct-to-digital conversion, 16 bits

ꢀ Log response: Wide dynamic range

ꢀ Outputs raw data to a host device

ꢀ Single wire UART interface

DRDY

SCK

Vdd

SDO

ꢀ Master or Slave mode SPI interface

ꢀ Programmable clock speed

REQ / 1W

SNS2

SNS1

Vss

ꢀ Turns objects into intrinsic touch sensors

ꢀ One external sample capacitor to control gain

ꢀ Multiple QT300’s possible on one SPI bus

APPLICATIONS

The QT300 charge-transfer (“QT’”) IC is a self-contained Capacitance-to-

Digital-Converter (CDC) capable of detecting femotofarad level changes in

capacitance. While designed primarily for instrumentation applications, it can be used

also for touch control applications where signal processing is best handled by a host

MCU.

ꢀ Fluid level sensors

ꢀ Prox sensors

ꢀ Moisture detection

ꢀ Position sensing

ꢀ Transducer driver

ꢀ Material sensors

Primary applications include fluid level sensors, distance sensors, transducer

‘amplifiers’ for pressure and humidity sensing functions, material detectors, and other

uses requiring quantified capacitance data.

Unlike other Quantum products, the QT300 does not process its acquired data. Its only result is raw, unprocessed binary

data which can be transmitted to a host via either a bidirectional SPI interface or a simple polled single wire UART type

interface. This allows the designer to treat the device as a capacitance-to-digital-converter (CDC) for measurement

applications. It is ideal for situations where there are unique signal processing requirements.

The device requires only a single sampling capacitor to function. The value of this capacitor controls the gain of the sensor,

and it can be adjusted over 2½ decades of range from 1nF to 500nF. No external switches, opamps, or other components

are required.

The device operates on demand, and can be synchronized to allow several QT300’s to operate near each other without

cross-interference.

AVAILABLE OPTIONS

T_A

0⁰C to +70⁰C

-40⁰C to +85⁰C

SOIC

QT300-IS

8-PIN DIP

QT300-D

QT300 R1.02/0204

12 3 4 5 6 7...14

中文翻译

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与QT300相关器件

型号	品牌	获取价格	描述	数据表
QT300_03	QUANTUM	获取价格	CAPACITANCE TO DIGITAL CONVERTER
QT300-D	QUANTUM	获取价格	CAPACITANCE TO DIGITAL CONVERTER
QT300-IS	QUANTUM	获取价格	CAPACITANCE TO DIGITAL CONVERTER
QT301	QUANTUM	获取价格	CAPACITANCE TO ANALOG CONVERTER
QT301-D	QUANTUM	获取价格	CAPACITANCE TO ANALOG CONVERTER
QT301-IS	QUANTUM	获取价格	CAPACITANCE TO ANALOG CONVERTER
QT310	QUANTUM	获取价格	PROGRAMMABLE CAPACITANCE SENSOR IC
QT310-D	QUANTUM	获取价格	PROGRAMMABLE CAPACITANCE SENSOR IC
QT310-IS	QUANTUM	获取价格	PROGRAMMABLE CAPACITANCE SENSOR IC
QT320	QUANTUM	获取价格	2 CHANNEL PROGAMMABLE ADVANCED SENSOR IC