Datasheet Linear Technology LTC2990 Quad I2C Voltage, Current and Temperature Monitor Datasheets- Download » Datasheet, PDF, 304 Kb, Revision: E, File uploaded 09-25-2017
LTC2990 - Quad I2C Voltage, Current and Temperature Monitor Docket ↓LTC2990 Quad I2C Voltage, Current and Temperature Monitor Features Description 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 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. nn Applications ...
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PackagingParametrics | LTC2990CMS#PBF | LTC2990CMS#TRPBF | LTC2990IMS#PBF | LTC2990IMS#TRPBF |
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ADC | 14-Bit | 14-Bit | 14-Bit | 14-Bit |
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Number of Channels | 2 | 2 | 2 | 2 |
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Demo Boards | DC1338B | DC1338B | DC1338B | DC1338B |
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Design Tools | Linduino File | Linduino File | Linduino File | Linduino File |
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Export Control | no | no | no | no |
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External Temp Sense Accuracy, °C | 1.5 | 1.5 | 1.5 | 1.5 |
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I/O | Serial I2C | Serial I2C | Serial I2C | Serial I2C |
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Internal Temp Sense Accuracy, °C | 3 | 3 | 3 | 3 |
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Isupply, mA | 1.1 | 1.1 | 1.1 | 1.1 |
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Monitors | External V, External I, External Temperature, Internal Vs, Internal Temperature | External V, External I, External Temperature, Internal Vs, Internal Temperature | External V, External I, External Temperature, Internal Vs, Internal Temperature | External V, External I, External Temperature, Internal Vs, Internal Temperature |
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Operating Temperature Range, °C | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 |
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Output | Digital | Digital | Digital | Digital |
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Sensor Type | Diode, Internal | Diode, Internal | Diode, Internal | Diode, Internal |
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Supply Voltage Range | 2.9V to 5.5V | 2.9V to 5.5V | 2.9V to 5.5V | 2.9V to 5.5V |
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Eco PlanArticles- Download » Articles - LT Journal, PDF, 1.1 Mb, 01-18-2011
I2C System Monitor Combines Temperature, Voltage and Current Measurements for Single-IC System Monitoring Docket ↓I2C System Monitor Combines Temperature, Voltage and Current Measurements for Single-IC System Monitoring David Schneider LTC2990 Features Measures Voltage, Current and Temperature Measures Two Remote Diode Temperatures ±1ºC Accuracy, 0.06ºC Resolution ±2ºC Internal Temperature 15-Bit ADC Measures Voltage and Current 3V to 5.5V Supply Operating Voltage I2C Serial Interface with Four Selectable Addresses Internal 10ppm Voltage Reference 10-Lead MSOP Package 22 | January 2011 : LT Journal of Analog Innovation 1.0 380 100µA 10µA 0.8 ∆VD 0.6 0.4 100 200 300 RSERIES = 0Ω RSERIES = 30Ω 360 DIODE TEMPERATURE (K) DIODE VOLTAGE (V) The limit on the complexity of large integrated circuits is dominated by how much power they can dissipate. The trend in µprocessors and FPGAs is toward packing more features into smaller ICs, run at ever-lower voltages. The resulting rise in power dissipation makes it increasingly difficult to monitor and control sources of heat. Where it was once suitable to have a single ... - Download » Articles - LT Journal, PDF, 261 Kb, 04-19-2017
Making Accurate Temperature Measurements with Devices with Different Ideality Factors Docket ↓Making Accurate Temperature Measurements with Devices with Different Ideality Factors Hamza Salman Afzal and Shuilin Tian The ability to accurately measure temperature is critical to the reliable operation of power systems. Accurate temperature data can reveal the instantaneous health of a system, and enable real-time protection functions such as thermal shutdown. For instance, significant rates of change in temperature can indicate increased power consumption. If a proper temperature feedback loop is implemented, this information can be used to reduce power consumption before temperatures escalate to dangerous levels. Perhaps the least expensive and most ubiquitous temperature sensor is a diode. A silicon p-n junction has a forward drop of approximately 700mV and a temperature coefficient of -2.2mV/C at room temperature. This sensitivity to temperature is exploited in many systems as a means of measuring temperature by simply biasing the diode with a constant current and measuring the resulting voltage (see Figure 1) This method has achieved wide acceptance ...
Moldel LineSeries: LTC2990 (4) Manufacturer's Classification- Signal Conditioning > Amplifiers > Current Sense Amplifiers
- Monitor, Control and Protection > Power Monitors
- Monitor, Control and Protection > Temperature Monitors > Digital Temperature Measurement Systems
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