LTC2635HMSE-HZ8#TRPBF

Overview

The LTC2635HMSE-HZ8#TRPBF 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 4.096V and operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers and guarantees monotonicity 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 allows configuration for zero-scale, mid-scale, or high-impedance states upon startup.

Feature Summary

• Quad 8-Bit Architecture: Four independent DAC channels with double-buffered data latches.
• Integrated Precision Reference: Internal 4.096V full-scale output with ±10ppm/°C drift.
• Automotive Grade: Guaranteed monotonic operation across –40°C to 125°C.
• Low Power Consumption: Draws 0.7mA at 5V with internal reference; 30µA in power-down mode.

Applications

• Process Control and Industrial Automation
• Power Supply Margining
• Portable Equipment

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the H-grade designation matches the required 4.5V to 5.5V supply range and automotive temperature specifications. Ensure the MSOP package type aligns with the target PCB footprint constraints.

Selection Notes

Select this part when four independent 8-bit outputs are required within a compact 10-lead MSOP form factor. The H-grade variant is necessary for applications requiring a 4.096V full-scale range powered by 4.5V to 5.5V supplies. Choose the Z-power-on-reset option if zero-scale initialization is preferred over mid-scale or high-impedance states.

Part Context

This component belongs to the LTC2635 family, which offers 12-, 10-, and 8-bit resolutions. The HMSE-HZ8 variant specifically denotes the 8-bit resolution, MSOP package, H-grade automotive temperature rating, and zero-scale power-on reset behavior. Other variants in the series include L-grade parts for lower voltage applications and different reset configurations.

Replacement Considerations

Direct replacements within the same family include LTC2635HMSE-HZ10 (10-bit) or LTC2635HMSE-HZ12 (12-bit) if higher resolution is acceptable. For external reference applications, consider the LMX-series variants. Verify pin compatibility as the MSOP package remains consistent across the family.