LTC2636IMS-LZ12#TRPBF

Overview

The LTC2636IMS-LZ12#TRPBF is an octal 12-bit voltage-output DAC with an integrated 10ppm/°C reference, housed in a 16-lead MSOP package. It features a 2.5V full-scale output and operates from a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 85°C industrial temperature range, and a 3-wire SPI/MICROWIRE-compatible interface supporting clock rates up to 50MHz. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Octal 12-bit resolution with ±2.5LSB maximum INL error
• Integrated 10ppm/°C reference providing 2.5V full-scale output
• 3-wire serial interface with 50MHz SCK frequency
• Power-on reset to zero-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates a tape and reel quantity of 2500 pieces. Confirm the IMS designation corresponds to the 16-lead MSOP package and LZ12 specifies the 12-bit resolution with zero-scale power-on reset behavior. Ensure the component meets the required industrial temperature grade for the intended application environment.

Selection Notes

Select this part when eight independent 12-bit channels are required with low drift. The internal reference simplifies design by eliminating external components. Choose the LZ variant if zero-scale initialization is critical upon power-up. Verify that the 2.5V full-scale range suits the downstream signal requirements compared to the 4.096V H-grade option.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (zero-scale or mid-scale). The MSOP package offers dedicated LDAC and CLR pins not available in the DFN version.

Replacement Considerations

Direct substitutes include other LTC2636 variants with different resolutions or reset behaviors, such as LTC2636IMS-LMI12#TRPBF for mid-scale reset. Cross-family replacements require verification of pin compatibility and electrical specifications.