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Product Detailed Parameters
- Description：QUAD SETPOINT TEMP. MONITOR
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Function：Temp Monitoring System (Sensor)
- Sensor Type：Internal and External
- Sensing Temperature：-40°C ~ 125°C
- Accuracy：±3°C
- Topology：Comparator, Voltage Reference
- Output Type：Open Drain
- Output Alarm：No
- Output Fan：Yes
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
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Overview
The ADT14GS is a quad setpoint, programmable temperature monitor and controller manufactured by Analog Devices Inc. It integrates a bandgap voltage reference with four matched comparators to generate an output voltage proportional to temperature. The device provides a temperature-stable 2.5 V output and a voltage proportional to absolute temperature (VPTAT) with a precise coefficient of 5 mV/K. Four open-collector outputs signal when the VPTAT exceeds user-defined thresholds established via external resistive dividers.
Feature Summary
- Integrates four programmable temperature setpoints with adjustable thermal hysteresis
- Provides a precise VPTAT output with a scale factor of 5 mV/K
- Includes an internal 2.5 V voltage reference for accurate threshold setting
- Features open-collector outputs compatible with various logic levels
Applications
- Power supply monitor and control systems
- Multiple fan controller systems
- Workstation thermal management systems
Procurement Notes
Verify the specific suffix GS against official Analog Devices documentation to confirm package type and temperature range specifications. Ensure compatibility with system voltage requirements, as quiescent current varies with supply voltage. Confirm RoHS compliance status for the specific revision before procurement.
Selection Notes
Select this component when multiple independent temperature thresholds are required from a single sensor interface. The resistor-programmable setpoints offer design flexibility without digital interfaces. Consider the 600 mA maximum quiescent current at +5 V for power budget calculations in low-power applications.
Part Context
The ADT14 belongs to Analog Devices' family of analog temperature monitoring solutions. It serves as a hardware-based alternative to digital sensors, reducing microcontroller load. The device simplifies thermal protection circuitry by combining sensing, referencing, and comparison functions in a single package.
Replacement Considerations
Consult official Analog Devices substitution guides for verified alternatives. Generic temperature controllers may lack the integrated 2.5 V reference or precise VPTAT linearity.
