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Name: AD694JNZ
Brand: Analog Devices Inc.
SKU: AD694JNZ
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. AD694JNZ

Part No.:: AD694JNZ

Manufacturer:: Analog Devices Inc.

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

Datasheet:: AD694JNZ.pdf

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

In Stock:: 2349

Quantity:: Add To Cart

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AD694JNZ Typical application Circuitry

AD694JNZ

The AD694JNZ is a monolithic current transmitter that converts a voltage input into a 4-20mA current loop output, commonly used for transmitting analog signals over long distances in industrial environments.

Application Scenarios: This chip is extensively utilized in industrial process control, sensor interfaces, and data acquisition systems where robust and noise-immune signal transmission is required.

Parameter Features: The AD694JNZ features include a wide input voltage range, high linearity, low temperature drift, and the ability to drive long cables in harsh industrial environments.

Circuit Design Example: Temperature Sensor Interface in Process Control

In a process control system, the AD694JNZ can be used to interface a temperature sensor with a 4-20mA current loop for transmitting temperature data to a control unit.

1. Power Supply Connection: Connect a +24V power supply to the V+ pin (pin 14) of the AD694JNZ. Connect the GND pin (pin 7) to the system ground.

2. Voltage Input from Sensor: Connect the voltage output of the temperature sensor to the VIN+ pin (pin 1) of the AD694JNZ. Ground the VIN- pin (pin 16).

3. Current Loop Output: The IOUT pin (pin 8) provides the 4-20mA current output, which should be connected in series with the control unit's input and the loop power supply.

4. Compliance Voltage: Ensure that the sum of the voltage drop across the control unit's input impedance and the loop wiring does not exceed the compliance voltage of the AD694JNZ to maintain accurate current transmission.

Design Considerations:

- Input Voltage Range: Verify that the sensor's output voltage is within the acceptable input range of the AD694JNZ to avoid signal saturation.

- Decoupling of Power Supply: Decoupling capacitors should be positioned close to the V+ and GND pins in order to minimize power supply noise and stabilize the AD694JNZ.

- Temperature Compensation: Account for the temperature coefficient of the AD694JNZ and the operating temperature range to ensure consistent performance under varying environmental conditions.

- Circuit Protection: Implement overvoltage protection and reverse polarity protection to safeguard the AD694JNZ and the temperature sensor from potential electrical hazards.

By integrating the AD694JNZ into a temperature sensor interface for a process control system, one can achieve a reliable and accurate 4-20mA current loop, enabling effective and noise-immune transmission of temperature data in industrial settings.

AD694JNZ information

AD694JNZ Specifications

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

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6. What is the process for return or replacement of AD694JNZ?

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 AD694JNZ we delivered, we will accept the replacement or return of the AD694JNZ 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 AD694JNZ.

(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