AD22103 3.3 V Supply, Voltage Output Temperature Sensor with Signal Conditioning

The AD22103 is a monolithic temperature sensor with on-chip signal conditioning. It can be operated over the temperature range 0°C to +100°C, making it ideal for use in numerous 3.3 V applications.

The signal conditioning eliminates the need for any trimming, buffering or linearization circuitry, greatly simplifying the system design and reducing the overall system cost.

The output voltage is proportional to the temperature times the supply voltage (ratiometric). The output swings from 0.25 V at 0°C to +3.05 V at +100°C using a single +3.3 V supply.

Due to its ratiometric nature, the AD22103 offers a cost effective solution when interfacing to an analog-to-digital converter. This is accomplished by using the ADC's power supply as a reference to both the ADC and the AD22103, eliminating the need for and cost of a precision reference.

Applications
  • Microprocessor thermal management
  • Battery and low powered systems
  • Power supply temperature monitoring
  • System temperature compensation
  • Board level temperature sensing
Markets
  • Computers
  • Portable electronic equipement
  • Industrial process control
  • Instrumentation
Features and Benefits
  • 3.3 V, single supply operation
  • Temperature coefficient of 28 mV/°C
  • 100°C temperature span (0°C to +100°C)
  • Accuracy better than 2.5% of full scale
  • Linearity better than 0.5% of full scale
  • Output proportional to temperature ×VS
  • Minimal self-heating
  • High level, low impedance output
  • Reverse supply protected
  • Analog to Digital Converters
    Sensors
    Data Sheets
    Documentnote
    AD22103: 3.3 V Supply, Voltage Output Temperature Sensor with Signal Conditioning Data Sheet (Rev. A)PDF 488.13 K
    Application Notes
    Documentnote
    AN-349: Keys to Longer Life for CMOSPDF 89 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD22103KRZ Production8 ld SOICOTH 980 to 100C1.971.64Y
    AD22103KRZ-R7 Production8 ld SOICREEL 10000 to 100C1.971.64Y
    AD22103KTZ Production3 ld TO-92OTH 1000 to 100C1.781.51Y
    AD22103: 3.3 V Supply, Voltage Output Temperature Sensor with Signal Conditioning Data Sheet (Rev. A) ad22103
    AN-349: 延长CMOS寿命的关键因素 adg3233
    AN-349: Keys to Longer Life for CMOS ad7703