LTC2966 - 100V Micropower Dual Voltage Monitor


  • Wide Operating Range: 3.5V to 100V
  • Wide Monitoring Range: 1.75V to 98V
  • Quiescent Current: 7μA
  • Adjustable Threshold Range
  • Internal High Value Resistive Dividers
  • ±1.4% (Max) Threshold Accuracy Over Temperature
  • Polarity Selection
  • 100V Rated Outputs
  • Selectable Built-In Hysteresis
  • 20-Lead SW and 16-Lead 3mm × 3mm QFN Packages
  • Click here to start your design with the LTC2966 Online Design Tool!

Typical Application

LTC2966 Typical Application
LTC2966 Typical Application


The LTC®2966 is a low current, high voltage dual channel voltage monitor. Internal high value resistors sense the input monitor pins providing a compact and low power solution for voltage monitoring. Each channel includes two comparator reference inputs (INH/INL) to allow configuration of a high and low threshold using an external resistive divider biased from the on-chip reference. Range selection pins are provided for each channel to set the internal resistive dividers for 5x, 10x, 20x and 40x scaling. The thresholds are scaled according to the range selection settings. Additionally, either INH or INL can be grounded to enable built-in hysteresis. Polarity selection pins allow each output to be inverted. The outputs are 100V capable and include a 500k pull-up resistor to an internal supply.


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
LTC2966CSW#PBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC2966CSW#TRPBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC2966CUD#PBF 3x3 QFN-16 UD C 05-08-1691 Yes
LTC2966CUD#TRPBF 3x3 QFN-16 UD C 05-08-1691 Yes
LTC2966HSW#PBF SW-20 SW H 05-08-1620 (SW20) Yes
LTC2966HSW#TRPBF SW-20 SW H 05-08-1620 (SW20) Yes
LTC2966HUD#PBF 3x3 QFN-16 UD H 05-08-1691 Yes
LTC2966HUD#TRPBF 3x3 QFN-16 UD H 05-08-1691 Yes
LTC2966ISW#PBF SW-20 SW I 05-08-1620 (SW20) Yes
LTC2966ISW#TRPBF SW-20 SW I 05-08-1620 (SW20) Yes
LTC2966IUD#PBF 3x3 QFN-16 UD I 05-08-1691 Yes
LTC2966IUD#TRPBF 3x3 QFN-16 UD I 05-08-1691 Yes

LTC2966 Package Drawing
LTC2966 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
LTC2966CSW#PBF SW-20 C $3.49 $2.44 Yes
LTC2966CSW#TRPBF SW-20 C $2.54 Yes
LTC2966CUD#PBF 3x3 QFN-16 C $3.49 $2.44 Yes
LTC2966CUD#TRPBF 3x3 QFN-16 C $2.50 Yes
LTC2966HSW#PBF SW-20 H $4.81 $3.37 Yes
LTC2966HSW#TRPBF SW-20 H $3.47 Yes
LTC2966HUD#PBF 3x3 QFN-16 H $4.81 $3.37 Yes
LTC2966HUD#TRPBF 3x3 QFN-16 H $3.43 Yes
LTC2966ISW#PBF SW-20 I $4.01 $2.81 Yes
LTC2966ISW#TRPBF SW-20 I $2.91 Yes
LTC2966IUD#PBF 3x3 QFN-16 I $4.01 $2.81 Yes
LTC2966IUD#TRPBF 3x3 QFN-16 I $2.87 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.

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