LTC2995 - Temperature Sensor and Dual Voltage Monitor with Alert Outputs


  • Monitors Temperature and Two Voltages
  • Voltage Output Proportional to Temperature
  • Adjustable Thresholds for Temperature and Voltage
  • ±1°C Remote Temperature Accuracy
  • ±2°C Internal Temperature Accuracy
  • ±1.5% Voltage Threshold Accuracy
  • 3.5ms Update Time
  • 2.25V to 5.5V Supply Voltage
  • Input Glitch Rejection
  • Adjustable Reset Timeout
  • 220μA Quiescent Current
  • Open Drain Alert Outputs
  • Available in 3mm × 3mm QFN Package

Typical Application

LTC2995 Typical Application
LTC2995 Typical Application


The LTC®2995 is a high accuracy temperature sensor and dual supply monitor. It converts the temperature of an external diode sensor and/or its own die temperature to an analog output voltage while rejecting errors due to noise and series resistance. Two supply voltages and the measured temperature are compared against upper and lower limits set with resistive dividers. If a threshold is exceeded, the device communicates an alert by pulling low the correspondent open drain logic output.

The LTC2995 gives ±1°C accurate temperature results using commonly available NPN or PNP transistors or temperature diodes built into modern digital devices. Voltages are monitored with 1.5% accuracy. A 1.8V reference output simplifies threshold programming and can be used as an ADC reference input.

The LTC2995 provides an accurate, low power solution for temperature and voltage monitoring in a compact 3mm × 3mm QFN package.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC2995CUD#PBF 3x3 QFN-20 UD C 05-08-1720 Yes
LTC2995CUD#TRPBF 3x3 QFN-20 UD C 05-08-1720 Yes
LTC2995HUD#PBF 3x3 QFN-20 UD H 05-08-1720 Yes
LTC2995HUD#TRPBF 3x3 QFN-20 UD H 05-08-1720 Yes
LTC2995IUD#PBF 3x3 QFN-20 UD I 05-08-1720 Yes
LTC2995IUD#TRPBF 3x3 QFN-20 UD I 05-08-1720 Yes

LTC2995 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC2995CUD#PBF 3x3 QFN-20 C $3.50 $2.45 Yes
LTC2995CUD#TRPBF 3x3 QFN-20 C $2.51 Yes
LTC2995HUD#PBF 3x3 QFN-20 H $4.63 $3.24 Yes
LTC2995HUD#TRPBF 3x3 QFN-20 H $3.30 Yes
LTC2995IUD#PBF 3x3 QFN-20 I $4.03 $2.82 Yes
LTC2995IUD#TRPBF 3x3 QFN-20 I $2.88 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1871A LTC2995 Temperature Sensor and Dual Voltage Monitor with Alert Outputs $50.00
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  • Desktop and Notebook Computers
  • Environmental Monitoring

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