LTC2636IDE-HMI8#PBF

Overview

The LTC2636IDE-HMI8#PBF is an octal, 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 on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers guaranteed monotonic over the temperature range. Communication is handled via a 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz. This specific variant belongs to the H-grade family, designed for industrial applications within a –40°C to 85°C operating temperature range.

Feature Summary

• Octal architecture with 8 independent 8-bit DAC channels in a 16-lead MSOP package
• Integrated 4.096V full-scale reference with ±10ppm/°C drift
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)
• Power-on reset configured to mid-scale in internal reference mode

Applications

• Process control and industrial automation systems
• Portable equipment requiring multi-channel signal generation
• Automotive electronic control units
• Optical networking infrastructure

Procurement Notes

Verify the suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the IDE designation corresponds to the Industrial temperature grade (-40°C to 85°C). Ensure the HMI8 configuration matches the required 4.096V full-scale output and mid-scale power-on reset behavior for the target application design.

Selection Notes

Select this part when eight simultaneous analog outputs are required with high accuracy. The H-grade ensures performance at 4.096V full-scale using a 4.5V to 5.5V supply. Choose the MI suffix if mid-scale initialization is preferred over zero-scale upon power-up. Verify that the 16-lead MSOP package fits the PCB footprint constraints compared to the 14-lead DFN option.

Part Context

This component is part of the LTC2636 family, which offers various resolutions (8-, 10-, 12-bit) and package types. The IDE-HMI8 specifically denotes the Industrial temperature grade, MSOP packaging, 8-bit resolution, and mid-scale reset in internal reference mode. It shares the same core architecture as the C-grade and L-grade variants but differs in supply voltage requirements and temperature specifications.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching pinouts and functionality, such as the LTC2636CDE-HMI8 or LTC2636HDE-HMI8, provided temperature ranges align. For lower channel counts, consider the LTC2634 (quad) or LTC2640 (single). I2C-compatible alternatives like the LTC2637 series require software adaptation due to different interface protocols.