AD594
⁍The AD594/AD595 can be powered from a single ended supply (including 5 V) and by including a negative supply, temperatures below 0°C can be measured. To minimize self-heating, an unloaded AD594/AD595 will typically operate with a total supply current 160 µA, 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/AD595 FEATURES
- ⁍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 1°C Calibration Accuracy
- ⁍Setpoint Mode Operation
- ⁍Self-Contained Celsius Thermometer Operation
- ⁍High Impedance Differential Input
- ⁍Side-Brazed DIP or Low Cost Cerdip
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