LTC2997

PRODUCTION

Remote/Internal Temperature Sensor

Part Models: 6
1ku List Price: Starting From $1.77

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Overview

Converts Remote Sensor or Internal Diode
Temperature to Analog Voltage
±1°C Remote Temperature Accuracy
±1.5°C Internal Temperature Accuracy
Built-In Series Resistance Cancellation
2.5V to 5.5V Supply Voltage
1.8V Reference Voltage Output
3.5ms V_PTAT Update Time
4mV/°K Output Gain
170μA Quiescent Current
Available in 6-Pin 2mm × 3mm DFN Package

The LTC2997 is a high-accuracy analog output temperature sensor. It converts the temperature of an external sensor or its own temperature to an analog voltage output. A built-in algorithm eliminates errors due to series resistance between the LTC2997 and the sensor diode.

The LTC2997 gives accurate results with low-cost diodeconnected NPN or PNP transistors or with integrated temperature transistors on microprocessors or FPGAs. Tying pin D+ to V_CC configures the LTC2997 to measure its internal temperature.

The LTC2997 provides an additional 1.8V reference voltage output which can be used as an ADC reference input or for generating temperature threshold voltages to compare against the V_PTAT output.

The LTC2997 provides a precise and versatile micropower solution for accurate temperature sensing.

Applications

Temperature Measurement
Remote Temperature Measurement
Environmental Monitoring
System Thermal Control
Desktop and Notebook Computers
Network Servers

Part Models: 6
1ku List Price: Starting From $1.77

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC2997CDCB#TRMPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2997CDCB#TRPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2997HDCB#TRMPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2997HDCB#TRPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2997IDCB#TRMPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2997IDCB#TRPBF	6-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LTC2997CDCB#TRMPBF	PRODUCTION
LTC2997CDCB#TRPBF	PRODUCTION
Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LTC2997IDCB#TRMPBF	PRODUCTION
LTC2997IDCB#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Pulse-Width Modulation (PWM) & Pulse Generators 1
LTC6992		TimerBlox: Voltage-Controlled Pulse Width Modulator (PWM)
Temperature Sensors 1
LTC2995	PRODUCTION	Temperature Sensor and Dual Voltage Monitor with Alert Outputs

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC2997

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.