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ADA4841-2YCPZ-R7 Datasheet(PDF) 17 Page - Analog Devices

No. de pieza ADA4841-2YCPZ-R7
Descripción Electrónicos  Low Power, Low Noise and Distortion ail-to-Rail Output Amplifiers
PDF  21 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

ADA4841-2YCPZ-R7 Datasheet(HTML) 17 Page - Analog Devices

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ADA4841-1/ADA4841-2
Rev. E | Page 16 of 20
The POWER DOWN pin is protected with ESD clamps,
as shown in
. Voltages beyond the power supplies
cause these diodes to conduct. The guidelines for limiting the
overload current in the input protection section should also be
followed for the
Figure 48
POWER DOWN pin.
POWER-DOWN OPERATION
Figure 48 shows the ADA4841-1 power-down circuitry. If the
POWER DOWN pin is left unconnected, then the base of the
input PNP transistor is pulled high through the internal pull-up
resistor to the positive supply, and the part is turned on. Pulling
the POWER DOWN pin approximately 1.7 V below the positive
supply turns the part off, reducing the supply current to
approximately 40 μA.
VCC
VEE
POWER DOWN
ESD
ESD
IBIAS
TO
AMPLIFIER
BIAS
Figure 48. POWER DOWN Circuit



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