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problem to clamp a signal with adp1720

jojogaspar
on Sep 14, 2011

Hello,

     I'm using an ADP1720 - Adj as a 2.5V power supply.

     By using a resistor (2.21K) and a diode (BAV99) a differential amplifier (AD8221) output is clamped to 2.5V .

     When the amplifier output is 12V, this signal is clamped to 4V instead of 2.5V and the power supply value change from 2.5V to 4V.

     Is it normal ???

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    •  Analog Employees 
    on Aug 2, 2018 4:15 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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    •  Analog Employees 
    on Aug 2, 2018 4:15 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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