LTC2635CUD-HMI12#PBF

Overview

The LTC2635CUD-HMI12#PBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 16-lead 3mm × 3mm QFN package. It features an integrated precision reference yielding 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, guarantees monotonicity over the –40°C to 125°C automotive temperature range, and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes.

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 configured to mid-scale in internal reference mode
• Ultralow DAC-to-DAC crosstalk of 3nV•s

Applications

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

Procurement Notes

Verify that the component matches the specified Automotive Temperature Grade (H) and 12-bit resolution. Confirm the HMI12 power-on reset configuration aligns with system startup requirements. Ensure the 16-pin QFN footprint and exposed pad soldering guidelines are strictly followed during assembly.

Selection Notes

Select this part for applications requiring four independent 12-bit channels with high accuracy and low noise. The 4.096V full-scale range suits 5V logic systems. Verify that the 4.5V minimum supply voltage meets the design constraints, as lower voltage operation is not supported by the H-grade variant.

Part Context

This component belongs to the LTC2635 family of quad DACs. The 'H' suffix denotes the automotive temperature grade (-40°C to 125°C), while 'MSE' or 'UD' indicates the package type; here it is UD (QFN). The 'I12' specifies 12-bit resolution and mid-scale power-on reset behavior.

Replacement Considerations

Public confirmed substitute part numbers: None.