IS4413-M1 Datasheet (PDF)

The IS4413-M1 is a 3-wire 4–20 mA current loop transmitter module controlled over I2C. Generate a loop current from any microcontroller with a single I2C write: no analog output stage to design and no library to install.

Ideal for adding a 4–20 mA output to sensors and transmitters (pressure, temperature, flow, level, pH and more), controlling current-loop actuators, or giving a custom controller an analog output.

Features

• 0 to 22 mA output, 12-bit resolution (≈5.6 µA per step)
• Single 24 V supply for the module and the loop
• Standard I2C, address 96: write code 725 for ≈4 mA, 3640 for ≈20 mA
• Configurable safe power-up current, stored in EEPROM
• Room below 4 mA and above 20 mA to signal saturation or faults
• Ready to use
• 15.24 × 17.78 mm, 2.54 mm pitch: fits breadboards and protoboards

Pinout

• 1 SDA, 2 SCL: I2C
• 3, 7 GND
• 4, 5, 6 COUT: loop current output
• 8 24V: supply for the module and the loop

Good to know

• The I2C bus runs at 5 V, with pull-ups to 5 V. With a 3.3 V microcontroller, use a level shifter unless its I2C pins are 5 V tolerant.
• The I2C address is fixed. To drive several modules, give each its own I2C bus or use an I2C multiplexer.
• The 24 V supply must provide at least 30 mA (module plus loop current).
• Only the module is included: no supply, microcontroller or loop receiver.

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