LTC2636HMS-LMI10#PBF

Overview

The LTC2636HMS-LMI10#PBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C temperature range, and double-buffered data latches. Communication is handled 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 10-bit resolution with ±1 LSB maximum INL error
• Integrated 10ppm/°C precision reference providing 4.096V full-scale output
• Rail-to-rail output buffers with ultralow DAC-to-DAC crosstalk (<2.4nV•s)
• Power-on reset to mid-scale in internal reference mode
• 3-wire serial interface supporting clock rates up to 50MHz

Applications

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

Procurement Notes

Verify the H-grade automotive temperature rating (–40°C to 125°C) and MSOP-16 package configuration. Confirm the LMI10 suffix indicates internal reference mode with mid-scale power-on reset. Ensure supply voltage constraints (4.5V to 5.5V) align with system design requirements for the 4.096V full-scale output specification.

Selection Notes

Select this part when eight independent 10-bit channels are required with high accuracy and low drift. The H-grade variant supports wider operating temperatures compared to C or I grades. Choose between internal reference modes (LMI/LMX) or zero-scale reset (LZ) based on startup behavior needs. External reference capability allows flexible full-scale voltage scaling if needed.

Part Context

This component belongs to the LTC2636 family of octal DACs available in 8-, 10-, and 12-bit resolutions. Variants include LTC2636-L (2.5V FS, 2.7V–5.5V supply) and LTC2636-H (4.096V FS, 4.5V–5.5V supply). Package options are 14-lead DFN and 16-lead MSOP. Temperature grades range from commercial (C) to automotive (H).

Replacement Considerations

Public confirmed substitute part numbers: LTC2636HMS-LMX10#PBF (external reference mode), LTC2636HMS-LZ10#PBF (zero-scale reset). For different resolutions, consider LTC2636HMS-LMI8#PBF or LTC2636HMS-LMI12#PBF. Lower grade alternatives include LTC2636IMSE-LMI10#PBF (I-grade, MSOP-10).