AD5522JSVDZ datasheet(36/65 Pages) AD

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Giải thích chi tiết về linh kiện	Quad Parametric Measurement Unit with Integrated 16-Bit Level Setting DACs

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36 / 65 page

Data Sheet

AD5522

Rev. E | Page 35 of 64

SYSTEM FORCE AND SENSE SWITCHES

Each channel has switches to allow connection of the force

(FOHx) and sense (MEASVHx) lines to a central PMU for

calibration purposes. There is one set of SYS_FORCE and

SYS_SENSE pins per device. It is recommended that these

connections be made individually to each PMU channel.

FOH0

FOH1

FOH2

FOH3

SYS_FORCE

MEASVH0

MEASVH1

MEASVH2

MEASVH3

SYS_SENSE

Figure 50. SYS_FORCE and SYS_SENSE Connections to FOHx and MEASVHx Pins

TEMPERATURE SENSOR

An on-board temperature sensor monitors die temperature.

The temperature sensor is located at the center of the die. If the

temperature exceeds the factory specified value (130°C) or a

user programmable value, the device protects itself by shutting

down all channels and flagging an alarm through the latched,

open-drain TMPALM pin. Alarm status can be read back from

the alarm status register or the PMU register, where latched and

unlatched bits indicate whether an alarm has occurred and

whether the temperature has dropped below the set alarm

temperature. The shutdown temperature is set using the system

control register.

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