The DS28E18Q+T acts as a protocol bridge, residing at a remote sensor location to simplify system architecture. It reduces the wiring requirement from six wires (for SPI) or four wires (for I2C) to just two. The integrated 512-byte SRAM command sequencer allows the host controller to pre-load complex I2C or SPI command sequences, enabling autonomous operation and efficient data collection.

It is particularly effective for high-density sensor networks where long-distance cable management is a primary constraint. The device supports standard I2C (up to 1MHz) and SPI (up to 2.3MHz) clock rates, providing flexible integration for various peripheral devices.

Analog Devices, Inc. (ADI) is a world leader in high-performance analog technology, renowned for their expertise in signal processing and mixed-signal innovation.

Following the acquisition of Maxim Integrated, ADI has expanded their portfolio of reliable, industrial-grade connectivity and sensor-interface solutions, continuing the legacy of the 1-Wire® communication protocol for complex system designs.

The DS28E18Q+T is supplied in a space-saving 8-pin TDFN-EP package.

Mechanical Details: 

• Package Code: TDFN-EP (Thermally Enhanced).
• Dimensions: 2.0mm x 3.0mm footprint.
• Operating Temp: Industrial range -40°C to +85°C.
• RoHS Status: Fully Lead-Free and Green compliant.

The TDFN package allows for compact integration into sensor nodes.

As a specialized protocol bridge, the DS28E18 has limited direct pin-to-pin equivalents. Selection of alternatives depends on your protocol translation needs:

• Custom MCU Solutions: Often implemented using small-footprint microcontrollers to emulate bridge functionality if 1-Wire compatibility is not strictly required.

• Industrial Reliability: Designed for harsh environments with a -40°C to +85°C operating range.
• Verified Source: Ensure supply via authorized Analog Devices distributors to maintain quality standards.
• Compliance: Designed for mission-critical industrial applications.