LTC2991CMS#PBF

LTC®2991 is an octal I²C voltage, current and temperature monitor. 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 this flexibility to be incorporated in various systems needing temperature, voltage or current data. This fits well in systems needing submillivolt voltage resolution, 1% current measurement and 1°C temperature accuracy or any combination of the three. Typical applications are temperature measurement, supply voltage monitoring, current measurement, remote data acquisition, environmental monitoring.

• Measures four remote diode temperatures
• 0.7°C (typ) accuracy, 0.06°C resolution
• 1°C (typ) internal temperature sensor, PWM temperature output
• Series resistance cancellation, 14bit ADC measures voltage/current
• Eight selectable addresses, internal 10ppm/°C voltage reference
• V1 to V8 inputs ESD rated to 6kV HBM
• Input supply range from 2.9 to 5.5V (TA=25°C, VCC=3.3V)
• Input supply current is 1.5mA (during conversion, I2C inactive, TA=25°C, VCC=3.3V)
• 16-lead plastic MSOP package
• Temperature rating range from 0°C to 70°C

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