LTC2634HMSE-HZ12#PBF

Overview

The LTC2634HMSE-HZ12#PBF is a quad 12-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, guaranteed monotonicity over the -40°C to 125°C temperature range, and communicates via a 3-wire SPI/MICROWIRE compatible interface. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Quad 12-bit resolution with ±2.5 LSB maximum integral nonlinearity error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Rail-to-rail output buffers operating within 4.5V to 5.5V supply range
• Power-on reset to zero-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #PBF confirms lead-free compliance and RoHS standards. Confirm the MSE package designation matches the required 10-lead MSOP footprint for PCB layout. Ensure the H-grade temperature rating (-40°C to 125°C) aligns with system thermal requirements. Cross-reference the HZ12 suffix to confirm the 4.096V full-scale voltage and zero-scale power-on reset behavior.

Selection Notes

Select this part when four independent 12-bit DAC channels are required in a compact MSOP package. The H-grade variant is necessary for automotive or high-temperature industrial environments exceeding 85°C. The Z-suffix indicates a zero-scale power-on reset, suitable for systems requiring safe initialization states. Verify that the 4.5V minimum supply voltage meets the system's power budget constraints.

Part Context

This component belongs to the LTC2634 family of quad DACs, which offers variations in resolution (8, 10, 12 bits), package type (QFN or MSOP), and temperature grades (C, I, H). The HMSE-HZ12 designation specifically identifies the high-temperature grade, MSOP package, zero-scale reset, and 12-bit resolution variants within this product line.

Replacement Considerations

Direct pin-compatible replacements within the same family include other LTC2634 variants with different resolutions or reset behaviors, provided the electrical specifications meet the application needs. Verify package compatibility between MSOP and QFN options if form factor changes are acceptable.