LTC2634HMSE-LMI10#PBF

Overview

The LTC2634HMSE-LMI10#PBF is a quad 10-bit voltage output digital-to-analog converter (DAC) housed in a 10-lead MSOP package. It features an integrated precision reference providing a 4.096V full-scale output and operates from 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 communicates via a 50MHz SPI/MICROWIRE compatible 3-wire serial interface. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Quad 10-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Rail-to-rail output buffers operating on 4.5V to 5.5V supply
• 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

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type, temperature grade, and power-on reset behavior. Ensure supply voltage sequencing adheres to absolute maximum ratings during power-up to prevent latch-up or damage. Confirm RoHS compliance status through official datasheets or component markings.

Selection Notes

Select this model for applications requiring a 4.096V full-scale output with mid-scale power-on reset in internal reference mode. The H-grade supports operation up to 125°C. For lower supply voltages (2.7V–5.5V), consider the L-grade variant. Verify that the 10-lead MSOP package meets thermal and spatial constraints compared to the 16-lead QFN option.

Part Context

This component belongs to the LTC2634 family of quad DACs, which offers 8-, 10-, and 12-bit resolutions. The HMSE designation indicates the H-grade automotive temperature range (-40°C to 125°C), MSOP 10-lead package, and mid-scale internal reference power-on reset configuration. Other variants include L-grade for 2.7V supplies and Z-suffixes for zero-scale reset options.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2634IMSE-HMI10#PBF (I-grade, -40°C to 85°C) or LTC2634HMSE-HMX10#PBF (external reference mode). Cross-family replacements require verification of pinout, supply voltage, and interface compatibility.