LTC2636IDE-LMI12#TRPBF

Overview

The LTC2636IDE-LMI12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 10ppm/°C reference providing a 2.5V full-scale output and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the industrial temperature range of –40°C to 85°C, and double-buffered data latches. Communication occurs via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Octal 12-Bit Resolution: Provides eight independent 12-bit DAC channels with ±2.5LSB maximum integral nonlinearity (INL).
• Integrated Precision Reference: Includes a low-drift 10ppm/°C internal reference for a 2.5V full-scale output.
• Industrial Temperature Range: Guaranteed monotonic operation across –40°C to 85°C.
• SPI Interface: Supports 3-wire serial communication at speeds up to 50MHz with double-buffered data latches.

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging containing 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the I grade matches the required –40°C to 85°C operating environment. Cross-reference the L suffix for the 2.5V internal reference specification against system voltage requirements.

Selection Notes

Select this part when eight isolated 12-bit outputs are required within a compact footprint. The 2.5V internal reference suits applications where a stable, low-noise baseline is needed without external components. Verify that the 2.7V minimum supply voltage aligns with the system power architecture. Consider the MSOP package variant if hardware clear and asynchronous update pins are necessary for the design.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 8-bit resolutions. Variants exist with different power-on reset behaviors (zero-scale or mid-scale) and full-scale voltages (2.5V or 4.096V). The IDE suffix indicates the industrial temperature grade and DFN package type, distinguishing it from commercial or automotive grades.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate other members of the LTC2636 family, such as the LTC2636CDE-LMI12 or LTC2636HMS-LMI12, based on temperature range and package preferences.