ADI AD22103KT

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 3.3V 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 0.25V at 0°C to +3.05V at +100°C using a single +3.3V 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

• Microprocessor Thermal Management
• Battery and Low Powered Systems
• Power Supply Temperature Monitoring
• System Temperature Compensation
• Board Level Temperature Sensing
• Computers
• Portable Electronic Equipment
• Industrial Process Control Instrumentation