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UZZ7000T Datasheet(Fiches technique) 5 Page - NXP Semiconductors

Numéro de pièce UZZ7000T
Description  Trigger amplifier with two wire current interface
Télécharger  8 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
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 5 page
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2000 Sep 05
5
Philips Semiconductors
Preliminary specification
Trigger amplifier with two wire current interface
UZZ7000T
FUNCTIONAL DESCRIPTION
The UZZ7000 is a differential input trigger amplifier with a
two wire interface and sensor supply regulator. It is
designed for application with magnetoresistive sensor
bridges. The block diagram is shown in Fig.4
The circuitry includes a voltage regulator for supply to an
external sensor bridge.
An on-chip temperature sensor adapts the comparator
hysteresis to the temperature dependent sensitivity of a
typical magnetoresistive sensor from the Philips
MR-Sensor KMZ families.
The UZZ7000T device and the connected sensor bridge
are supplied from a two wire current interface. The digital
output is directly related to the differential voltage input
between pins SA and SB which switches the constant
current source between 7 and 14 mA.
handbook, full pagewidth
MLD403
VP
SA
VAC
7 mA
7 mA
GND
SB
UZZ7000
Fig.4 Block diagram.




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