LTC2991
Info : RECOMMENDED FOR NEW DESIGNS
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LTC2991

Octal I2C Voltage, Current, and Temperature Monitor

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $5.37
Features
  • Measures Voltage, Current, Temperature
  • Measures Four Remote Diode Temperatures
  • 0.7°C (Typ) Accuracy, 0.06°C Resolution
  • 1°C (Typ) Internal Temperature Sensor
  • Series Resistance Cancellation
  • 14-Bit ADC Measures Voltage/Current
  • PWM Temperature Output
  • 3V to 5.5V Supply Operating Voltage
  • Eight Selectable Addresses
  • Internal 10ppm/°C Voltage Reference
  • V1 to V8 Inputs ESD Rated to 6kV HBM
  • 16-Lead MSOP Package
Additional Details
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The LTC2991 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the eight monitors can individually measure supply voltages and can be paired for differential measurements of current sense resistors or temperature sensing transistors. Additional measurements include internal temperature and internal VCC. The internal 10ppm reference minimizes the number of supporting components and area required. Selectable address and configurable functionality give the LTC2991 flexibility to be incorporated in various systems needing temperature, voltage or current data. The LTC2991 fits well in systems needing submillivolt voltage resolution, 1% current measurement and 1°C temperature accuracy or any combination of the three.

Applications

  • Temperature Measurement
  • Supply Voltage Monitoring
  • Current Measurement
  • Remote Data Acquisition
  • Environmental Monitoring
Part Models 4
1ku List Price Starting From $5.37

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Jun 5, 2024

- 24_0004

Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC2991CMS#PBF

PRODUCTION

LTC2991CMS#TRPBF

PRODUCTION

LTC2991IMS#PBF

PRODUCTION

LTC2991IMS#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0132

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LTC2991CMS#PBF

PRODUCTION

LTC2991CMS#TRPBF

PRODUCTION

LTC2991IMS#PBF

PRODUCTION

LTC2991IMS#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0004

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC2991CMS#PBF

PRODUCTION

LTC2991CMS#TRPBF

PRODUCTION

LTC2991IMS#PBF

PRODUCTION

LTC2991IMS#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0132

arrow down

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LTC2991CMS#PBF

PRODUCTION

LTC2991CMS#TRPBF

PRODUCTION

LTC2991IMS#PBF

PRODUCTION

LTC2991IMS#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 2

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DC1785B

LTC2991 Demo board | I2C Temperature, Voltage, and Current Monitor (requires DC590 or DC2026)

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DC1785B

LTC2991 Demo board | I2C Temperature, Voltage, and Current Monitor (requires DC590 or DC2026)

LTC2991 Demo board | I2C Temperature, Voltage, and Current Monitor (requires DC590 or DC2026)

Product Detail

Demonstration circuit 1785B features the LTC2991, a high performance temperature, voltage and current monitor that uses an I2C interface for communication. It offers sub-millivolt voltage resolution, 1% current measurement and 1°C temperature accuracy.


 


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DC2561A

LTC2992 Demo Board | Dual Wide Range Power Monitor

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DC2561A

LTC2992 Demo Board | Dual Wide Range Power Monitor

LTC2992 Demo Board | Dual Wide Range Power Monitor

Product Detail

Demonstration Circuit 2561A features the LTC2992, a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply's current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply's current and power is added for total system consumption. Minimum and maximum values are stored and an over range alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard l2C interface. Shutdown mode reduces power consumption to 25μA typically.

Tools & Simulations

Tools & Simulations 2

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.

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

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