LTC2636CDE-LMI10#PBF

Overview

The LTC2636CDE-LMI10#PBF is an octal 10-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 utilizes a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. It includes double-buffered data latches, power-on reset to mid-scale, and rail-to-rail output buffers guaranteed monotonic over the temperature range. Packaged in a 14-lead DFN.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with ±1 LSB INL accuracy.
• Integrated Reference: Features a built-in 10ppm/°C reference yielding a 2.5V full-scale output.
• High-Speed Interface: Communicates via SPI/MICROWIRE-compatible 3-wire serial interface at up to 50MHz.
• Power-On Reset: Resets outputs to mid-scale upon power-up for consistent system initialization.

Applications

• Process Control and Industrial Automation
• Portable Equipment
• Automotive Systems
• Optical Networking

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction and tape/reel packaging configuration. Confirm the DE package designation corresponds to the 14-lead DFN form factor required for the target PCB layout. Ensure the C grade commercial temperature rating aligns with operational environmental constraints.

Selection Notes

Select this part for applications requiring multiple low-cost, moderate-precision voltage outputs. The L suffix denotes the 2.5V internal reference variant suitable for 2.7V–5.5V supplies. Choose MI for mid-scale power-on reset behavior. Consider the MSOP package if exposed pad soldering is not feasible or if additional CLR/LDAC pins are needed.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8/10/12-bit), reference voltage (L=2.5V, H=4.096V), and power-on reset behavior (Z=Zero, MI/MX=Mid). The CDE-LMI10 specifically combines the commercial temperature grade, DFN package, 2.5V reference, and mid-scale reset logic.

Replacement Considerations

Direct substitutes within the same family include LTC2636CDE-LMI8 (8-bit) and LTC2636CDE-LMI12 (12-bit). For industrial temperature ranges, consider the I-grade equivalents such as LTC2636IDE-LMI10#PBF. Package variations like LTC2636CMS-LMI10#PBF offer the same electrical performance in an MSOP footprint.