LTC2634IMSE-LMI10#PBF

Overview

The LTC2634IMSE-LMI10#PBF is a quad 10-bit voltage output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference providing a 2.5V full-scale output with a temperature coefficient of 10ppm/°C. The device operates from a single 2.7V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the -40°C to 85°C industrial temperature range. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Quad 10-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• SPI/MICROWIRE compatible 3-wire serial interface up to 50MHz
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive applications

Procurement Notes

Verify the specific ordering suffix LMI10#PBF against the manufacturer's current product selection guide to confirm availability and exact pinout configuration for the MSOP package. Ensure compliance with RoHS standards as indicated by the PBF designation. Cross-reference the datasheet revision E specifications for settling time and linearity parameters relevant to the industrial temperature grade.

Selection Notes

Select this component when a quad-channel, 10-bit resolution is required with a fixed 2.5V full-scale output. The IMSE suffix indicates the Industrial temperature range (-40°C to 85°C) and MSOP packaging. Choose the LMI power-on reset option if mid-scale initialization in internal reference mode is necessary for system stability upon power-up. Verify that the 2.7V to 5.5V supply range aligns with the target application's power constraints.

Part Context

This part belongs to the LTC2634 family, which offers 12-, 10-, and 8-bit resolutions in both 16-lead QFN and 10-lead MSOP packages. The IMSE variant specifically denotes the Industrial temperature grade and MSOP form factor. The LMI suffix configures the power-on reset behavior to mid-scale using the internal reference, distinguishing it from zero-scale or external reference reset options available in other family members.

Replacement Considerations

Direct replacements within the same family include LTC2634IMSE-HMI10#PBF for a 4.096V full-scale output or LTC2634IMSE-LZ10#PBF for zero-scale power-on reset. For higher resolution, consider the 12-bit LTC2634IMSE-LMI12#PBF. Ensure the replacement maintains the MSOP package and industrial temperature rating.