LTC2990 Datasheet | Linear Technology

Features nn Measures Voltage, Current and Temperature nn Measures Two Remote Diode Temperatures nn ±0.5°C Accuracy, 0.06°C Resolution (Typ) nn ±1°C Internal Temperature Sensor (Typ) nn 14-Bit ADC Measures Voltage/Current nn 3V to 5.5V Supply Operating Voltage nn Four Selectable Addresses nn Internal 10ppm/°C Voltage Reference nn 10-Lead MSOP Package APPLICATIONS nn Temperature Measurement nn Supply Voltage Monitoring nn Current Measurement nn Remote Data Acquisition nn Environmental Monitoring LTC2990 Quad I2C Voltage, Current and Temperature Monitor DESCRIPTION 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 binations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ponents 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 bination of the three. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION Voltage, Current, Temperature Monitor RSENSE 2.5V 5V ILOAD VCC V1 SDA SCL ADR0 ADR1 V2 V3 V4 TREMOTE 2990 TA01a TINTERNAL MEASURES: TWO SUPPLY VOLTAGES, SUPPLY CURRENT, INTERNAL AND REMOTE TEMPERATURES TUE (°C) Temperature Total Unadjusted Error 0.5 TREMOTE - 0.5 - 1.0 - 50 - 25 0 25 50 75 100 125 TAMB (°C) 2990 TA01b Document Feedback For more information .analog. Rev....