LTC2635HUD-HMI8#TRPBF

Overview

The LTC2635HUD-HMI8#TRPBF is a quad 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C automotive temperature range, and a maximum integral nonlinearity error of ±0.5 LSB. Power-on reset options allow for mid-scale initialization in internal reference mode.

Feature Summary

• Quad 8-Bit DACs with Integrated Precision Reference
• 4.096V Full-Scale Output (H-Grade)
• I²C Interface with Standard/Fast Mode Support
• Automotive Temperature Range (–40°C to 125°C)

Applications

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

Procurement Notes

Verify the H-grade designation confirms the 4.5V minimum supply requirement and 4.096V full-scale output. Confirm the MSE package suffix corresponds to the 10-lead MSOP form factor. Ensure the M12 power-on reset code matches the required mid-scale initialization behavior for internal reference applications.

Selection Notes

Select this part when four independent 8-bit outputs are required within a compact 10-lead MSOP footprint. The H-grade variant is necessary for systems requiring a 4.096V span, necessitating a supply voltage between 4.5V and 5.5V. Verify that the I²C address configuration via CA pins meets system addressing constraints.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also includes 10-bit and 12-bit variants. The H-suffix denotes the automotive grade with a 4.096V internal reference, distinct from the L-suffix devices that offer a 2.5V reference and operate down to 2.7V. The specific ordering code defines the resolution, package type, and power-on reset state.

Replacement Considerations

LTC2635HUD-HMI10#TRPBF: Higher resolution 10-bit version with identical package and reset configuration.