LTC2990

RECOMMENDED FOR NEW DESIGNS

Quad I2C Voltage, Current and Temperature Monitor

Analog Devices LTC2990 Product Info

10 February 2026 5

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

Part details & applications

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 V_CC. 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.

Applications

Temperature Measurement
Supply Voltage Monitoring
Current Measurement
Remote Data Acquisition
Environmental Monitoring

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