Datasheet > AS1716_V2

AS1716_V2

更新时间： 2022-10-11 11:50:58

品牌	Logo	应用领域
艾迈斯 - AMSCO		传感器
页数	文件大小	规格书
12页	317K
描述
Capacitive Sensor Interface

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AS1716_V2 数据手册

Datasheet

AS1716

Capacitive Sensor Interface

1 General Description

AS1716 is an analog front end specifically designed for unbiased

Capacitive Sensors, as for instance Knock Sensors in Automotive, to

be interfaced with Analog Digital Converters with Sample and Hold

input stages.

2 Key Features

ꢀ

Differential input stage with wide input range

Resistive sensor biasing (VDDA/2)

Programmable Gain (x0.5, x1, x2, x4)

Internal 2^ndorder low pass Multiple Feedback Filter with a min.

cut off frequency of 16kHz

The device provides differential inputs, a 1st order low pass filter to

cutoff the high frequency noise components, differential to single

ended conversion, programmable gain stage and a 2 pole low pass

Multiple Feedback Filter.

ꢀ

Single supply operation: 4.5V to 5.5V

Operating Temperature range: -40°C to +125°C

High CMRR: 55dB (min)

The Knock Sensor is a Piezo Electric device that generates a voltage

if it is stressed. It senses knock and transmits information to the elec-

tronic engine management control unit. This influences process con-

trol in the engine, for example timing and fuel injection until knock is

eliminated.

EMC characterized by IEC 61967-4

(1Ω / 150Ω Method)

ꢀ

EMC characterized by IEC 62132-4

(Direct Power Injection)

The capacitive sensor is biased via resistors to a voltage level of

VDDA/2.

ꢀ

Automotive qualified to AECQ100 for IC and PPAP level 3

8-pin SOIC Package

3 Applications

Analog front end for Capacitive Sensors to Analog to Digital Convert-

ers and DSP.

Figure 1. AS1716 - Block Diagram

VSSA

VDDA

INN

VDDA

VDDA/2

Gain Control

x0.5, x1, x2, x4

OUT

VDDA/2

Multiple Feedback LP Filter

fc ~23kHz typ.

INP

VDDA/2

AS1716

VDDA/2

www.austriamicrosystems.com/Capacitive-Sensors/AS1716

Revision 1.02

1 - 12

12 3 4 5 6 7...12

下载PDF

与AS1716_V2相关器件

型号	品牌	描述	获取价格	数据表
AS1716A-ASOT	AMSCO	Capacitive Sensor Interface	获取价格
AS1716-ASOT	AMSCO	Capacitive Sensor Interface	获取价格
AS1720	AMSCO	Solenoid / Valve Dr iver wi th Cur rent Limi tat ion	获取价格
AS1720A	AMSCO	Solenoid / Valve Dr iver wi th Cur rent Limi tat ion	获取价格
AS1720B	AMSCO	Solenoid / Valve Dr iver wi th Cur rent Limi tat ion	获取价格
AS17235	ETC	AS17235 User＇s Manual \| User＇s Manual[11/1999	获取价格