AD594

The AD594/AD595 can be powered from a single ended supply (including +5 V) and by including a negative supply, temperatures below 0C can be measured. To minimize self-heating, an unloaded AD594/AD595 will typically operate with a total supply current 160 A, but is also capable of delivering in excess of 5 mA to a load.

The AD594/AD595 is a complete instrumentation amplifier and thermocouple cold junction compensator on a monolithic chip. It combines an ice point reference with a precalibrated amplifier to produce a high level (10 mV/C) output directly from a thermocouple signal. Pin-strapping options allow it to be used as a linear amplifier-compensator or as a switched output setpoint controller using either fixed or remote setpoint control. It can be used to amplify its compensation voltage directly, thereby converting it to a stand-alone Celsius transducer with a low impedance voltage output.

AD594/AD595FEATURES

• Can Be Used with Type T Thermocouple Inputs
• Low Impedance Voltage Output: 10 mV/C
• Built-In Ice Point Compensation
• Wide Power Supply Range: +5 V to 15 V
• Low Power: <1 mW typical
• Thermocouple Failure Alarm
• Laser Wafer Trimmed to 1C Calibration Accuracy
• Setpoint Mode Operation
• Self-Contained Celsius Thermometer Operation
• High Impedance Differential Input
• Side-Brazed DIP or Low Cost Cerdip

Developer :AD 594_Datasheet