[christianw.]

Ich werf noch mal den MAX6603 in die Runde:

http://www.maximintegrated.com/en/produc...X6603.html

http://datasheets.maximintegrated.com/en/ds/MAX6603.pdf


MAX6603
Dual-Channel, Platinum, RTD-to-Voltage Signal Conditioner

Replaces Expensive, Discrete Solutions while Reducing Board Space by Offering Complete Automotive Fault Protection Against ESD (±8kV Rated) and Short-to-Battery Fault, Plus Sensitive Microcontroller Inputs Protection


Amplifies Pt RTD Temperature Signals
±5kV ESD Protection on RTD Inputs
+16V Overvoltage Fault Protection on RTD Inputs
Low RTD Excitation Current Minimizes Self-Heating Errors
Small, 10-Pin TDFN Package
Fully Ratiometric Operation
No Calibration Required for Standard RTDs
RTD Diagnostic Check
High Accuracy: ±6°C (ma from +400°C to +600°C




Overkill wäre dann:
http://www.maximintegrated.com/en/produc...X1454.html

Edit:

Wie bekommt man die Dateien in den Beitrag (inline)?