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ANALOG DEVICES AD8494ARMZ-R7
Thermocouple Amplifier, J Type Thermocouple, 2.7 to 36 V/±2.7 to ±18 V, -40 to 125 Deg C, MSOP-8
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- AD8494ARMZ-R7
- Order Code:
- 4029753
- Technical Datasheet:
- AD8494ARMZ-R7 Datasheet
- ECAD / MCAD
-
Product Overview
AD8494 is a precision thermocouple amplifier with cold junction compensation. It produces a high level (5mV/°C) output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. It can be used as stand-alone thermometers or switched output setpoint controllers using a fixed or remote setpoint control. It can be powered from a single-ended supply (less than 3V) and can measure temperatures below 0°C by offsetting the reference input. To minimize self heating, an unloaded amplifier typically operates with a total supply current of 180µA, but it is also capable of delivering in excess of ±5mA to a load. This amplifier is widely used in application such as J type thermocouple temperature measurement, set point controller, Celsius thermometer, universal cold junction compensator, white goods (oven, stovetop) temperature measurements, exhaust gas temperature sensing, catalytic converter temperature sensing etc.
- Low cost and easy to use
- Pretrimmed for J type thermocouple, input voltage range is - 0.2V to - 1.6V
- Internal cold junction compensation, voltage noise is 0.8µV p-p at (f = 0.1Hz to 10Hz, TA = 25°C)
- High impedance differential input, quiescent current is 180µA typ
- Reference pin allows offset adjustment, input current is 25µA
- Thermocouple break detection, initial accuracy is 3°Cmax at (TA = TRJ = TMJ = 25°C)
- Laser wafer trimmed to 1°C initial accuracy and 0.025°C/°C ambient temperature rejection
- Single supply voltage is 2.7V to 36V, dual supply voltage is ±2.7V to ±18V
- Operating temperature range is -40°C to +125°C
- Packaging style is 8-lead MSOP
Product Information
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- :
- Thermocouple Cold Junction Compensator
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- 2.7V
- :
- 36V
- :
- MSOP
- :
- 8Pins
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- -40°C
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- 125°C
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- -
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- -
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- MSL 1 - Unlimited
Technical Documents (1)
Packaging type
Cut Tape
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1,000 more will be available on 2/5/24
Extra stock is available upon order to the Supplier Lead Time which is approximately 3/11/24
107 UK stock available for 3-4 business days delivery
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