Overview
Features and Benefits
- 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
Product Details
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
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation
Reliability Data (1)
User Guides (1)
Tools & Simulations
LTspice
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.
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Reference Materials
Product Selector Card (2)
Technical Articles (4)
Instrumentation Applications for High Accuracy Temperature Monitor Products
Press Releases (1)
Design Resources
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Support & Discussions
LTC2997 Discussions
Sample & Buy
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