Datasheet Linear Technology LTC2990

Datasheets

Prices

Packaging

Parametrics

Eco Plan

Articles

• Download
  Articles - LT Journal PDF, 1.1 Mb, File published: Jan 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 В±1ВєC Accuracy, 0.06ВєC Resolution В±2ВєC 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
  100ВµA
  10µA 0.8 ∆VD
  0.6 0.4
  100 200 300 RSERIES = 0О©
  RSERIES = 30О© 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 Вµprocessors
  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, File published: Apr 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 …

Model Line

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