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AD694 IC – 4-20mA Monolithic Current Transmitter IC

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₹1,199.00 (excluding 18% GST)

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Description

The AD694 is specifically designed for applications where a precise and stable 4-20mA current loop is required. It accepts a standard voltage input (typically 0-10V or 0-5V) and converts it into a proportional current output in the range of 4-20mA. The current loop is a preferred method of transmitting analog signals over long distances because it is less susceptible to noise and voltage drop issues. The AD694 integrates the necessary voltage-to-current conversion circuitry and includes features such as a reference voltage output and over-range capability.

Features

  • 4-20mA Current Loop Output: Converts a voltage input into a 4-20mA current, which is standard for industrial process control.
  • Wide Input Voltage Range: Compatible with a variety of input voltage ranges, typically 0-10V or 0-5V.
  • Integrated Voltage Reference: Provides a stable reference voltage (typically 10V) for generating the input signal, enhancing accuracy and stability.
  • Over-Range Capability: Allows for slight over-ranging (e.g., 3.8mA to 24mA) for diagnostic purposes.
  • Low Nonlinearity: Ensures accurate and precise conversion, with typical nonlinearity of less than 0.05%.
  • Single or Dual Supply Operation: Can operate from a single +15V supply or dual ±15V supplies.
  • Low Power Consumption: Designed for efficient operation, consuming minimal power.
  • Temperature Compensation: Built-in temperature compensation for reliable operation over a wide temperature range.

Specifications

  • Input Voltage Range: Typically 0V to 10V, adjustable to other ranges (e.g., 0V to 5V).
  • Output Current Range: 4mA to 20mA.
  • Reference Voltage: 10V (±0.1%) output reference.
  • Nonlinearity: Typically ±0.05% of full-scale.
  • Supply Voltage: +15V (single supply) or ±15V (dual supply).
  • Supply Current: Typically 1.2 mA (excluding output current).
  • Operating Temperature Range: -25°C to +85°C.
  • Package Type: Available in 14-pin DIP and SOIC packages.

Applications

  • Industrial Process Control: Converts sensor signals into a standard 4-20mA current loop for monitoring and control in industrial environments.
  • Remote Monitoring: Transmits analog signals over long distances with minimal loss and interference.
  • Data Acquisition Systems: Interfaces with sensors and transmits their data in a standardized format.
  • Instrumentation: Used in various measurement instruments to ensure accurate signal transmission.
  • PLC Interface: Provides a reliable interface between analog sensors and Programmable Logic Controllers (PLCs) in automation systems.
  • Temperature and Pressure Transmitters: Converts temperature or pressure sensor outputs into 4-20mA signals.

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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