Water Level Sensor/Detector/Monitor With Alarm

This schematic diagram shows a water level sensor/detector/monitor circuit. An alarm is also featured in this circuit. Any fluid with a resistance under 900K between the maximum separation distance of the probes will trigger this circuit. A 4050B CMOS hex buffer is used on this circuit that is working at 5 volt supply.  The 10M resistors connected between buffer input […]

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TMP01 Fahrenheit Scale Temperature Sensor

This schematic diagram is about TMP01 Fahrenheit Scale Temperature Sensor circuit. This circuit is used to convert VPTAT into an output that can be read directly in degrees Fahrenheit. The scale of this circuit is 10 mV/°F. This circuit consist of two stage,s first stage is differentiating circuit that has only unity gain or less. Then, the second stage is […]

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TMP01 Celsius Scale Temperature Sensor

The schematic diagram described here is a TMP01 Celsius Scale Temperature Sensor circuit. This circuit is used to convert the VPTAT output voltage that is calibrated in Kelvins into an output  in degrees Celsius on a voltmeter display. This circuit uses an amplifier that is configured as a differential amplifier. Here is the schematic diagram of the circuit: The VREF […]

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TMP01 Temperature Out-of-Range Warning

This is a TMP01 temperature out-of-range warning circuit. This circuit is used to generate a temperature out-of-range warning signal. This circuit is usually used in sensitive equipment calibrated to work over a limited temperature range. This circuit can be done by connecting the two open-collector outputs of the TMP01 together into a wired-OR configuration. Here is the schematic diagram of […]

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