ad22103 3.3v电压输出带信号调整的的温度传感器
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. *protected by u.s. patent nos. 5030489 and 5243319.
ad22103 features
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
ad22103应用电路
functional block diagram for ad22103
ad22103,pdf datasheet (voltage output 3.3 v temperature sensor)
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AD22103 3.3V电压输出带信号调整的的温度传感器
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