ADT7485A Datasheet, PDF (1/16 Pages) Analog Devices – SST Digital Temperature Sensor and Voltage Monitor

FEATURES
1 on-chip temperature sensor
1 remote temperature sensor
Monitors up to 5 voltages
Simple Serial Transport™ (SST™) interface
APPLICATIONS
Personal computers
Portable personal devices
Industrial sensor nets
SST Digital Temperature Sensor
and Voltage Monitor
ADT7485A
GENERAL DESCRIPTION
The ADT7485A is a digital temperature sensor and voltage
monitor for use in PC applications with a Simple Serial Transport
(SST) interface. It can monitor its own temperature as well as
the temperature of a remote sensor diode. It can also monitor
four external voltage channels and its own supply voltage. The
ADT7485A is controlled by a single SST bidirectional data line.
This device is a fixed-address SST client where the target address
is chosen by the state of the address pin, ADD.
FUNCTIONAL BLOCK DIAGRAM
V_CC
12V
5V
V_CCP
2.5V
D1+
D1–
ON-CHIP
TEMPERATURE
SENSOR
ADT7485A
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
TEMPERATURE
VALUE REGISTERS
A/D
CONVERTER
VOLTAGE
VALUE REGISTERS
GND
Figure 1.
OFFSET REGISTERS
SST INTERFACE
SST
ADDRESS
SELECTION
ADD
Rev. 0
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