AD7150

更新时间： 2024-02-25 00:57:53

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
24页	258K
描述
Ultra Low Power, 2 Channel, Capacitance Converter for Proximity Sensing

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AD7150 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	TSSOP,	针数：	10
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	0.77
Is Samacsys：	N	商用集成电路类型：	CONSUMER CIRCUIT
JESD-30 代码：	S-PDSO-G10	JESD-609代码：	e3
长度：	3 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	10
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.1 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	2.7 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	3 mm	Base Number Matches：	1

AD7150 数据手册

Ultra Low Power, 2 Channel, Capacitance

Converter for Proximity Sensing

Preliminary Technical Data

AD7150

GENERAL DESCRIPTION

FEATURES

Ultra low power

The AD7150 delivers a complete signal processing solution for

capacitive proximity sensors, featuring an ultra low power

converter with fast response time.

3.3 V, 90 uA

Response time 10 ms

Adaptive environmental compensation

Two independent capacitance input channels

Sensor capacitance (C_SENS) 0 up to 14 pF

Sensitivity to 0.8 fF

The AD7150 uses Analog Devices’ capacitance to digital

converter (CDC) technology, which combines features

important for interfacing to real sensors, such as a high input

sensitivity and a high tolerance of both input parasitic ground

capacitance and leakage current.

EMC tested

Two modes of operation:

Standalone with fixed settings

Interfaced to a uC for user-defined settings

Two proximity detection output flags

2-wire serial interface (I²C®-compatible)

Operating temperature:

-40°C to +125°C

The integrated adaptive threshold algorithm compensates for

any variations in the sensor capacitance due to environmental

factors like humidity and temperature, or changes in the

dielectric material over time.

By default, the AD7150 operates in standalone mode using the

fixed power up settings and indicates detection on two digital

outputs. Alternatively, the AD7150 can be interfaced to a uC via

I²C interface, the internal registers can be programmed with

user-defined settings and the data and status can be read from

the part.

10-lead uSOIC package

APPLICATIONS

Proximity sensing

Contact-less switching

Position detection

Level detection

The AD7150 operates from a 3.3 V power supply. It is specified

over the temperature range of -40°C to +125°C.

FUNCTIONAL BLOCK DIAGRAM

IN1

SENS1

SCL

DIGITAL

FILTER

SERIAL

INTERFACE

Σ−∆ CDC

SDA

EXC1

MUX

AD7150

THRESHOLD

OUT1

IN2

SENS2

EXCITATION

THRESHOLD

GND

OUT2

EXC2

Figure 1.

Rev. PrD, 8. November 2006

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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