LTC2997
PRODUCTIONRemote/Internal Temperature Sensor
- Part Models
- 6
- 1ku List Price
- Starting From $1.77
Part Details
- 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 VPTAT 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 VCC 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 VPTAT 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
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Technical Articles 4
Video 1
Product Selector Card 2
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) | ||
| LTC2997CDCB#TRPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC2997HDCB#TRMPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC2997HDCB#TRPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC2997IDCB#TRMPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC2997IDCB#TRPBF | 6-Lead DFN (2mm x 3mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LTC2997CDCB#TRMPBF | PRODUCTION | |
| LTC2997CDCB#TRPBF | PRODUCTION | |
| LTC2997IDCB#TRMPBF | PRODUCTION | |
| LTC2997IDCB#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Tools & Simulations
LTspice 3
- LTC2997 Demo Circuit - High Accuracy, Analog Output, Temperature Sensor
- LTM4639/LT1935/LTC2997 Demo Circuit - High Efficiency 20A µModule Buck Regulator (2.4-7V to 1.2V @ 20A)
- LTC2997 - Temperature Sensor and Control Devices
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.
Evaluation Kits
LTC2997 | Internal/Remote Temperature Sensor