AD594AQ The Analog Devices Inc. AD594AQ is a monolithic thermocouple amplifier with built-in cold junction compensation. It offers a low impedance voltage output and operates over a wide temperature range.
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AD594AQ

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices Inc. AD594AQ is a monolithic thermocouple amplifier with built-in cold junction compensation. It offers a low impedance voltage output and operates over a wide temperature range.
Total Stock: 3,500 pcs
$ Price Range: $2.06

AD594AQ Available from 1 distributor

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AD594AQ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Accuracy
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Operating Temperature
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AD594AQ Description

Short technical summary and product information.

The AD594AQ from Analog Devices Inc. is a complete instrumentation amplifier and thermocouple cold junction compensator integrated circuit. It is pretrimmed for Type J thermocouples and can also be used with Type T thermocouple inputs. This device provides a high-level, low-impedance voltage output of 10 mV/°C, directly from a thermocouple signal, simplifying temperature measurement.

 

Key features include built-in ice point compensation, a thermocouple failure alarm, and laser wafer trimming for calibration accuracy. The AD594AQ operates from a wide power supply range of +5V to ±15V and consumes low power, typically less than 1 mW. It is designed for operation between -55°C and 125°C.

 

This component is housed in a 14-pin CERDIP package and is suitable for through-hole mounting. Its flexible pinout allows for operation as a linear amplifier-compensator or as a switched output setpoint controller. The AD594AQ is ideal for applications requiring accurate and direct temperature readings from thermocouples.

AD594AQ Quick Information

Product Type: Thermocouple Amplifier
Canonical Name: Analog Devices / Maxim Integrated AD594AQ Monolithic Thermocouple Amplifier with Cold Junction Compensation
Subcategory: Thermal Management ICs

AD594AQ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AD594AQ Estimated Pricing

Qty Low High
1+ $2.06 $2.06

Estimated market price range - modelled values for guidance only, not live distributor offers.

AD594AQ Features

  • Monolithic thermocouple amplifier with cold junction compensation.
  • Pretrimmed for Type J thermocouples.
  • Low impedance voltage output: 10 mV/°C.
  • Wide operating temperature range: -55°C to 125°C.
  • Through hole mounting in 14-pin CERDIP package.

AD594AQ Applications

  • Accurate temperature measurement from thermocouples.
  • Industrial process control systems.
  • Environmental monitoring equipment.
  • Automotive temperature sensing.

AD594AQ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the accuracy of the AD594AQ thermocouple amplifier?

The AD594AQ has a maximum accuracy of ±3°C.

What type of thermocouples is the AD594AQ pretrimmed for?

The AD594AQ is pretrimmed for Type J thermocouples.

What is the operating temperature range for the AD594AQ?

The AD594AQ operates from -55°C to 125°C.

What is the output voltage characteristic of the AD594AQ?

The AD594AQ provides a low impedance voltage output of 10 mV/°C.

What is the power supply voltage range for the AD594AQ?

The AD594AQ can be powered by a voltage range of 5V to ±15V.

How is the AD594AQ mounted?

The AD594AQ is designed for through-hole mounting.

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