I am trying to integrate a temperature sensor along with the storage capability with it. Both temperature sensor and the storage device will be controlled by FPGA. Which device would be the most appropriate way to choose as storage device. EEPROM or SRAM IC or any other?
Best temperature storage IC? EEPROM or SRAM IC
integrated-circuitpcbstoragetemperature
Related Solutions
Sealing it inside a tube would be ideal. The thermocouple you've linked isn't waterproof. You can buy thermocouple probes in sealed housings from several sources. One popular source fo industrial users is http://www.omega.com/guides/thermocouples.html .
Rolling your own is fine as long as you select good high temperature materials for the sealant.
Diodes are not as good as diode-connected transistors in this kind of multi-current \$\Delta V_{BE}\$ temperature measurement circuit. I note that the part number you specify is actually a BJT, not a diode.
Recall the ideality factor that is close to 1 for a diode-connected transistor and more like 2 for a diode.
The manufacturer also has detailed recommendations for the type of transistor to be used, and recommends that large power transistors not be used.
You could try a small power transistor such as a BD159STU (That one is in the convenient TO-126 through-hole package), or simply make a small PCB with the SMT part on one side and no tracks or vias on the other, and attach that to the panel (that's probably what I'd do- it could be connectorized, and made as a snap-off bit attached to some other board).
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Best Answer
You may be thinking of battery-backed static RAM. Such a thing does exist, and can be used as an alternative to EEPROM. EEPROM chips typically have a limited number of writes before they become read-only. That number is in the tens or hundreds of thousands per location, so that lifetime may not be a meaningful limitation, depending on your application. But if you must frequently log a value and must always be sure to get the most frequently logged value, and if that means that your EEPROM will have too short a lifespan, then you may have no choice but to use BBSRAM instead. The only limitation there is the amount of powered-off time your battery and chip combination will allow, and whether than exceeds your needs (if not, you will lose data).