Datasheet Summary
Precision Thermocouple Amplifiers with Cold Junction pensation AD8494/AD8495/AD8496/AD8497
Features
Low cost and easy to use Pretrimmed for J or K type thermocouples Internal cold junction pensation High impedance differential input Standalone 5 mV/°C thermometer Reference pin allows offset adjustment Thermocouple break detection Laser wafer trimmed to 1°C initial accuracy and 0.025°C/°C ambient temperature rejection Low power: <1 mW at VS = 5 V Wide power supply range Single supply: 2.7 V to 36 V Dual supply: ±2.7 V to ±18 V Small, 8-lead MSOP
FUNCTIONAL BLOCK DIAGRAM
+IN
ESD AND OVP
AD8494/AD8495/ AD8496/AD8497
A2
THERMOCOUPLE
COLD JUNCTION PENSATION
A3
- IN...