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AD22103:  Voltage Output 3.3 V Temperature Sensor with Signal Conditioning

Product Details

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.


  • 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

Functional Block Diagram for AD22103


Title Content Type File Type
AD22103: 3.3 V Supply, Voltage Output Temperature Sensor with Signal Conditioning Data Sheet  (Rev 0, 03/1996) (pdf, 224 kB) Data Sheets PDF
ADT7301: Accurate, SPI-Compatible Temperature Sensor in SOT Package  (htm)
(analogZone September 1, 2003)
Product Reviews HTM
Selection Guide: Temperature Sensors  (pdf, 807 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

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Price, packaging, availability

AD22103 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD22103KRZ Status: Production 8 ld SOIC 8 Comm. Tube, 98 $1.82 $1.52 Y  Material Info PCN Purchase
AD22103KRZ-R7 Status: Production 8 ld SOIC 8 Comm. Reel, 1000 $1.82 $1.52 Y  Material Info PCN Purchase
AD22103KRZ-RL Status: Last Time Buy 8 ld SOIC 8 Comm. Reel, 2500 - - Y  Material Info PCN/PDN Purchase
AD22103KTZ Status: Production 3 ld TO-92 3 Comm. Tray, 100 $1.65 $1.40 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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