ADT7484A Datasheet, PDF (1/16 Pages) Analog Devices – Digital Temperature Sensor with SST Interface

FEATURES
1 on-chip temperature sensor
1 or 2 remote temperature sensors
Simple Serial Transport™ (SST™) interface Rev 1 compliant
APPLICATIONS
Personal computers
Portable personal devices
Industrial sensor nets
Digital Temperature Sensor
with SST Interface
ADT7484A/ADT7486A
GENERAL DESCRIPTION
The ADT7484A/ADT7486A are simple digital temperature sensors
for use in PC applications with a Simple Serial Transport (SST)
interface. These devices can monitor their own temperature as
well as the temperature of one (ADT7484A) or two (ADT7486A)
remote sensor diodes. The ADT7484A/ADT7486A are controlled
by a single SST bidirectional data line. The devices are fixed-
address SST clients where the target address is chosen by the
state of the two address pins, ADD0 and ADD1.
FUNCTIONAL BLOCK DIAGRAM
D1+
D1–
D2+
(ADT7486A ONLY)
D2–
ON-CHIP
TEMPERATURE
SENSOR
LOCAL TEMPERATURE
VALUE REGISTER
ANALOG MUX
A/D
CONVERTER
REMOTE TEMPERATURE
VALUE REGISTER
ADT7484A/
ADT7486A
OFFSET REGISTERS
V_DD
GND
Figure 1.
RESERVED
SST INTERFACE
SST
ADDRESS
SELECTION
ADD1
ADD0
Rev. 0
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