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ADT7461AARMZ-2 数据手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
温度传感器IC
封装:
MSOP
描述:
± 1°C的温度监测器，串联电阻抵消 【1∑C Temperature Monitor with Series Resistance Cancellation
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ADT7461AARMZ-2数据手册
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±1°C Temperature Monitor with Series
Resistance Cancellation
ADT7461A
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved.
FEATURES
On-chip and remote temperature sensor
0.25°C resolution/1°C accuracy on remote channel
1°C resolution/1°C accuracy on local channel
Automatically cancels up to 1.5 kΩ (typical) of resistance in
series with remote diode to allow noise filtering
Extended, switchable temperature measurement range
0°C to +127°C (default) or –64°C to +191°C
Pin- and register-compatible with
ADM1032 and ADT7461
2-wire SMBus serial interface with SMBus alert support
Programmable over/under temperature limits
Offset registers for system calibration
Up to two overtemperature fail-safe
THERM
outputs
Small 8-lead MSOP
240 μA operating current, 5 μA standby current
APPLICATIONS
Desktop and notebook computers
Industrial controllers
Smart batteries
Automotive
Embedded systems
Burn-in applications
Instrumentation
FUNCTIONAL BLOCK DIAGRAM
A-TO-D
CONVERTER
RUN/STANDBYBUSY
REMOTE OFFSET
REGISTER
LIMIT
COMPARATOR
STATUS REGISTER
INTERRUPT
MASKING
REMOTE TEMPERATURE
VALUE REGI STER
LOCAL TEMPERATURE
VALUE REG I STER
ON-CHIP
TEMPERATURE
SENSOR
ANALOG
MUX
EXTERNAL DIODE OPEN-CIRCUIT
SMBus INTERFACE
ADT7461A
3
2
8
4
1 5 7
V
DD
GND SDATA SCLK
THERM
6
D+
D–
ALERT/THERM2
DIGITAL MUX
CONFIGURATION
REGISTERS
EXTERNAL THERM LIMIT
REGISTERS
LOCAL THERM LIMIT
REGISTERS
REMOTE TEMPERATURE
HIGH-LIMIT REGISTER
REMOTE TEMPERATURE
LOW-LIMIT REGISTER
LOCAL TEMPERATURE
HIGH-LIMIT REGISTER
LOCAL TEMPERATURE
LOW-LIMIT REGISTER
CONVERSION RATE
REGISTER
ADDRESS POINTER
REGISTER
DIGITAL MUX
0
5571-001
Figure 1.
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