LTC2636CDE-LMI12#TRPBF

Overview

The LTC2636CDE-LMI12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 10ppm/°C reference with 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 temperature range, and double-buffered data latches. Communication is handled via a 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz. It incorporates a power-on reset circuit that sets outputs to mid-scale in internal reference mode. The component is housed in a 14-lead DFN package.

Feature Summary

• Octal 12-bit resolution with ±2.5LSB maximum integral nonlinearity error
• Integrated 2.5V full-scale reference with 10ppm/°C drift
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems
• Optical networking

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE suffix corresponds to the 14-lead DFN package type. Ensure the C grade matches the required commercial operating temperature range of 0°C to 70°C for the application environment.

Selection Notes

Select this part when eight independent 12-bit channels are required with high accuracy and low drift. The L variant provides a 2.5V full-scale output suitable for 2.7V to 5.5V single-supply systems. Choose the MI suffix if a mid-scale power-on reset state is preferred over zero-scale initialization. Verify compatibility with the system's SPI clock speed and voltage levels.

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 full-scale voltages (2.5V or 4.096V), temperature grades (C, I, H), and reset behaviors (Zero-Scale or Mid-Scale). The DE package denotes the 14-lead DFN form factor, distinct from the 16-lead MSOP option.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.