LTC2990 - Quad I2C Voltage, Current and Temperature Monitor

The LTC®2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting components and area required. Selectable address and configurable functionality give the LTC2990 flexibility to be incorporated in various systems needing temperature, voltage or current data. The LTC2990 fits well in systems needing sub-millivolt voltage resolution, 1% current measurement and 1°C temperature accuracy or any combination of the three.

Features
  • Measures Voltage, Current and Temperature
  • Measures Two Remote Diode Temperatures
  • ±0.5°C Accuracy, 0.06°C Resolution (Typ)
  • ±1°C Internal Temperature Sensor (Typ)
  • 14-Bit ADC Measures Voltage/Current
  • 3V to 5.5V Supply Operating Voltage
  • Four Selectable Addresses
  • Internal 10ppm/°C Voltage Reference
  • 10-Lead MSOP Package
Typical Application
LTC2990 Typical Application
LTC2990 Typical Application
Applications
  • Temperature Measurement
  • Supply Voltage Monitoring
  • Current Measurement
  • Remote Data Acquisition
  • Environmental Monitoring
Packaging
LTC2990 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC2990CMS#PBFMS-10C$3.21$2.25
LTC2990CMS#TRPBFMS-10C$2.31
LTC2990IMS#PBFMS-10I$3.70$2.59
LTC2990IMS#TRPBFMS-10I$2.65
Demo Boards
Part NumberDescriptionPrice
DC1338BLTC2990 Demo Board | I2C Temperature, Current & Voltage Monitor (requires DC2026)$50.00
Companion Boards
Part NumberDescriptionPrice
DC2026CLinduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform$75.00
Datasheet
Reliability Data
Product Selector Card
LT Journal
Press Release
CAD Symbol
Linduino
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LTC2990 Footprints and Symbols
LTC2990 - DC1338 Linduino.INO File
LTC2990 - Linduino Header File
LTC2990 - Linduino.CPP File