BUY AD597AHZ https://www.utsource.net/itm/p/7284016.html
AD595...AD597 Thermocouple Amplifiers, Analog Devices The AD594/595/596/597 series of type J/K thermocouple amplifiers are a combination of an instrumentation amplifier and thermocouple cold junction compensator roviding an output of 10mV/°C. AD594 for type J thermocouples, optimised operating temperature range 0°C to 50°C AD595 for type K thermocouples, optimised operating temperature range 0°C to 50°C AD596 for type J thermocouples, optimised operating temperature range 25°C to 100°C AD597 for type K thermocouples, optimised operating temperature range 25°C to 100°C All versions have a measurement range equal to the full range of the relevant thermocouple type.

Parameter	Symbol	Min	Typical	Max	Units	Conditions
Supply Voltage	Vcc	4.5	5.0	5.5	V
Supply Current	Icc		1.8	2.5	mA
Temperature Range		-40		125	°C	Operating
Output Impedance	Zout	0.2	0.25	0.3	kΩ
Nonlinearity	NL		±0.1		%FSO	0°C to 100°C
Hysteresis	HYST		±0.05		%FSO	0°C to 100°C
Thermal Time Constant	τ	10	15	20	s
Thermal Sensitivity Ratio	TSR		0.25		mV/°C
Zero Offset	Vz	-10	0	10	mV	25°C
Span	Vsp	490	500	510	mV	25°C
Output Voltage at 0°C	Vout0	0	0	0	V
Output Voltage at 100°C	Vout100	500	500	500	mV

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage is within the range of 4.5V to 5.5V.
   • The typical supply current is 1.8mA, but it can go up to 2.5mA.

2. Temperature Measurement:

   • The AD597AHZ operates over a temperature range from -40°C to 125°C.
   • For optimal accuracy, use the device within the 0°C to 100°C range where nonlinearity and hysteresis are minimized.

3. Output Voltage:

   • The output voltage is linearly proportional to the temperature.
   • At 0°C, the output voltage is 0V.
   • At 100°C, the output voltage is 500mV.
   • The thermal sensitivity ratio (TSR) is 0.25mV/°C.

4. Calibration:

   • Calibrate the device if necessary by adjusting for zero offset and span.
   • Zero offset should be within ±10mV at 25°C.
   • Span should be within 490mV to 510mV at 25°C.

5. Thermal Response:

   • The thermal time constant (τ) is typically 15 seconds, indicating the time it takes for the sensor to reach 63.2% of its final value after a step change in temperature.

6. Nonlinearity and Hysteresis:

   • Nonlinearity is typically ±0.1% FSO (Full Scale Output) over the 0°C to 100°C range.
   • Hysteresis is typically ±0.05% FSO over the same range.

7. Handling and Storage:

   • Store the device in a dry environment to prevent moisture damage.
   • Handle with care to avoid mechanical stress which could affect performance.

8. Mounting:

   • Mount the device in a location that accurately reflects the temperature you wish to measure.
   • Avoid mounting near heat sources or in direct sunlight to prevent inaccurate readings.

By following these guidelines, you can ensure optimal performance and reliability of the AD597AHZ temperature sensor.

(For reference only)