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  • AD7143 detection distance 10cm

    PChen833
    PChen833

    Hello

             Does AD7143 Cap sensing detect distance meet 10cm? Have any suitable solution can meet? Thank you. 

    BR

    Patrick

    • Answered
    • over 1 year ago
    • Precision ADCs
    • Q&A
  • 能读取AD7143的设备ID号,却无法正确读取其AD采集的数据。

    raincoat
    raincoat

    RT,目前AD7143的IIC操作没有问题,读取其设备号也正常,但读回来的通道采集数据全部是0,。

    之前有块板子能够读取数据,但是每次上电前必须用烙铁刮一下AD7143的引脚方能读回正确数据。

    希望有过经验的朋友能指点下。

    • Answered
    • over 7 years ago
    • 精密转换器专区
    • 问答
  • Does the pad on the AD7143 CDAC chip have to be grounded?

    gbmhunter
    gbmhunter

    Hi,

    Does the pad on the underside of the AD7143 (QFN-like package) have to be grounded for the IC to work?

    I have connected everything up except this pad, and the chip won't respond over I2C (no acknowledge bit).

    Cheers, Geo

    • Answered
    • over 10 years ago
    • Precision ADCs
    • Q&A
  • LDC - AD7147 Eval-Board

    GenevaCooper
    GenevaCooper

    Q 

    When we connected an AD7143-1 externally to AD7147-1 evaluation board (instead
    of AD7147-1), we noticed an automatic change in configuration/ID register of
    EEPROM. When we reconnected AD7147-1 (instead of AD7143-1) the configuration/ID
    register…

    • 7 months ago
    • Precision ADCs
    • Documents
  • RE: AD7746 liquid level monitoring

    vsethia
    vsethia

    Please refer to some of the PCB design guidelines mentioned at the link 

    Capacitance Sensors for Human Interfaces to Electronic Equipment | Analog Devices

    AN-854 Sensor PCB Design Guidelines for the AD7142 and AD7143 Capacitance-to-Digital Converters Application…

    • over 1 year ago
    • Precision ADCs
    • Q&A
  • RE: Using multiple AD7746 for liquid level sensing

    vsethia
    vsethia

    Please refer to the following notes 

    AN-854 Sensor PCB Design Guidelines for the AD7142 and AD7143 Capacitance-to-Digital Converters Application Note (Rev. A) (analog.com)

    AN-925 (analog.com)

    AN-957 Layout Guidelines for the AD7147 and AD7148 CapTouch…

    • over 1 year ago
    • Precision ADCs
    • Q&A
  • AD7148: Effect of water FAQs

    GenevaCooper
    GenevaCooper

    Q 

    I would like to use some capacitive buttons (up to 8) in a shower control
    system. The buttons will be inside the shower box. The customer, wet because
    under shower, has to touch the buttons to interact with the system. Clearly is
    an hard moisture…

    • 7 months ago
    • Precision ADCs
    • Documents
  • RE: Any option for shielding with AD7746?

    LFMM0303
    LFMM0303

    Hi,

    Basically I want to oscillate my sensors so they only detect objects on only one of their sides, not both. Something as what is shown in this pdf in section 2.1 http://www.ti.com/lit/an/snoa926a/snoa926a.pdf

    When I say "other capacitive converters…

    • over 3 years ago
    • Precision ADCs
    • Q&A
  • RE: Looking for a AD7152 replacement

    Wa$iM
    Wa$iM

    Hi

    there are couple of parts that provide more number of channels but they are limited to applications such as single electrode capacitance sensors or have touch sensor type of applications.

    http://www.analog.com/en/products/analog-to-digital-converters…

    • over 6 years ago
    • Precision ADCs
    • Q&A
  • RE: ADD7746 - Testing/Measuring Multiple CDCs Simultaneously?

    EricC
    EricC

    Hi Allan,

    Sorry for the delay in getting back to you.  If you need multiple sensor inputs then have you considered maybe the AD7142 or AD7143 parts?  These parts have multiple sensor inputs so they would reduce the need to use multiple AD7746 chips.

    …
    • over 7 years ago
    • Precision ADCs
    • Q&A
>
 
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