LTC2635HMSE-LZ8#PBF

Overview

The LTC2635HMSE-LZ8#PBF is a quad 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 10-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 2.7V to 5.5V and includes rail-to-rail output buffers that are guaranteed monotonic over the automotive temperature range of –40°C to 125°C. Communication is handled via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. A power-on reset circuit defaults outputs to zero-scale.

Feature Summary

• Quad 8-bit resolution with ±0.5 LSB maximum INL error
• Integrated 2.5V full-scale reference with 10ppm/°C drift
• Automotive grade operation from –40°C to 125°C
• Power-on reset to zero-scale with rail-to-rail buffered outputs

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction and confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the H-grade specification for the –40°C to 125°C operating range aligns with the target application environment requirements before finalizing procurement.

Selection Notes

Select this component when four independent 8-bit DAC channels are required in a compact surface-mount package. The H-grade variant is necessary for automotive or high-temperature industrial applications. The internal 2.5V reference simplifies design by eliminating external reference components, provided the 2.7V minimum supply voltage constraint is met.

Part Context

This part belongs to the LTC2635 family, which offers 8-, 10-, and 12-bit resolutions. The 'H' suffix denotes the automotive temperature grade, while 'MSE' specifies the 10-lead MSOP package. Other variants include the QFN package and 'L' grade for commercial temperatures with different supply voltage ranges.

Replacement Considerations

Direct pin-compatible replacements within the same family include other LTC2635 resolutions (e.g., LTC2635HMSE-LZ10#PBF for 10-bit). Verify that the replacement maintains the required I²C address configuration and power-on reset behavior if substituting with different suffixes.