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Name: AD694JN
Brand: Analog Devices Inc.
SKU: AD694JN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. AD694JN

Part No.:: AD694JN

Manufacturer:: Analog Devices Inc.

Package:: 16-DIP (0.300, 7.62mm)

Datasheet:: AD694JN.pdf

Description:: IC TRANSMITTER 4-20MA 16-DIP

In Stock:: 3624

Quantity:: Add To Cart

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AD694JN Specifications

Package/Case:
16-DIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Current Transmitter
InputType:
Voltage
OutputType:
Voltage
Current-Supply:
23 mA
OperatingTemperature:
0°C ~ 70°C
MountingType:
Through Hole

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AD694JN information

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AD694JN Typical application Circuitry

AD694JN

The AD694JN is a 4-20mA transmitter chip that converts a voltage input into a current output, commonly used in industrial process control and instrumentation.

Application Scenarios: This chip is widely used in industrial sensor interfaces, process control systems, and data acquisition systems where a 4-20mA current loop is required for long-distance signal transmission.

Parameter Features: The AD694JN features include a wide input voltage range, high accuracy, low drift, and the ability to drive long cables in harsh industrial environments.

Circuit Design Example: Industrial Sensor Interface

In an industrial sensor interface, the AD694JN can be used to convert a voltage signal from a sensor into a 4-20mA current loop for transmission to a control system.

1. Power Supply Connection: Connect a +24V power supply to the V+ pin (pin 14) and ground the GND pin (pin 7).

2. Voltage Input: Connect the voltage output of the sensor to the VIN+ pin (pin 1). Ground the VIN- pin (pin 16).

3. Current Output: The IOUT pin (pin 8) provides the 4-20mA current output, which can be connected in series with the input of the control system and a loop power supply.

4. Loop Compliance: Ensure that the loop power supply voltage and the resistance of the input circuit in the control system do not exceed the compliance voltage of the AD694JN to maintain accurate current output.

Design Considerations:

- Input Voltage Range: Ensure that the sensor voltage is within the specified input range of the AD694JN to prevent saturation and ensure accurate conversion.

- Power Supply Decoupling: To minimize noise and guarantee steady operation, use decoupling capacitors close to the power supply pins.

- Temperature Effects: Consider the temperature coefficient of the AD694JN and the operating temperature range to maintain accuracy in varying environmental conditions.

- Protection: Implement protection mechanisms such as overvoltage protection and current limiting to safeguard the AD694JN and the sensor from potential damage.

By incorporating the AD694JN into an industrial sensor interface, one can achieve a reliable and accurate 4-20mA current loop, enabling robust and long-distance signal transmission in industrial process control systems.

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6. What is the process for return or replacement of AD694JN?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD694JN we delivered, we will accept the replacement or return of the AD694JN only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of AD694JN.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations