LTC2635HMSE-LMO12#PBF

Overview

The LTC2635HMSE-LMO12#PBF is a quad 12-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 4.096V and operates from a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over –40°C to 125°C, and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Power-on reset options include high-impedance state for the LMO suffix.

Feature Summary

• Quad 12-bit resolution with maximum INL error of ±2.5 LSB
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Power-on reset to high-impedance state (LMO option)
• Ultralow crosstalk between DACs (3nV•s)

Applications

• Process control and industrial automation
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix 'LMO' indicates the power-on reset behavior where all DAC outputs enter a high-impedance state after power-up. Confirm the 'H' grade designation ensures operation within the automotive temperature range of –40°C to 125°C. Ensure the MSOP package type matches the target PCB footprint requirements.

Selection Notes

Select this part when a 4.096V internal reference is required for 12-bit accuracy in space-constrained designs. The LMO suffix is critical if system safety requires outputs to float upon initialization rather than resetting to zero or mid-scale. Verify that the supply voltage remains within the 4.5V to 5.5V range specified for the H-grade variant.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also offers 10-bit and 8-bit resolutions. Variants are available with 2.5V full-scale outputs (L grade) or different power-on reset behaviors such as zero-scale (Z) or mid-scale (MI/MX). The HMSE package distinguishes it from the QFN (UD) package options.

Replacement Considerations

Public confirmed substitute part numbers: None.