LTC2634IMSE-LMX8#TRPBF

Overview

The LTC2634IMSE-LMX8#TRPBF is a quad 8-bit voltage output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V 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 temperature range, and a 3-wire SPI/MICROWIRE compatible serial interface operating at clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Quad 8-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 external reference mode

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the IMSE designation corresponds to the Industrial temperature grade (-40°C to 85°C) and the MSE package type. Ensure compatibility with the required power-on reset behavior for mid-scale initialization in external reference mode.

Selection Notes

Select this part for applications requiring four independent 8-bit channels with low power consumption and high accuracy. The L suffix denotes a 2.5V full-scale output suitable for 2.7V to 5.5V supplies. Choose this variant over H-grade parts if operation below 4.5V is required or if lower power dissipation is critical.

Part Context

This component belongs to the LTC2634 family of quad DACs available in 12-, 10-, and 8-bit resolutions. The IMSE-LMX8 variant specifically provides 8-bit resolution with mid-scale reset in external reference mode. Other options include 12-bit and 10-bit resolutions, different reset behaviors, and automotive-grade H-temperature variants.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.