LTC2636IMS-HMI12#PBF

Overview

The LTC2636IMS-HMI12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 4.096V full-scale output and operates within a 4.5V to 5.5V supply range. The device utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. It includes double-buffered data latches, rail-to-rail output buffers, and guaranteed monotonicity over the –40°C to 85°C industrial temperature range. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Octal architecture with eight independent 12-bit DAC channels
• Integrated 4.096V precision reference with ±10ppm/°C drift
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)
• Industrial temperature grade (-40°C to +85°C) in 16-lead MSOP package

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring multi-channel precision
• Portable battery-powered instrumentation
• Automotive electronic control units

Procurement Notes

Verify the specific ordering suffix HMI12 confirms the 12-bit resolution, mid-scale power-on reset behavior, and 4.096V internal reference configuration. Confirm the IMS designation indicates the industrial temperature range and MSOP package type before finalizing procurement specifications.

Selection Notes

Select this part for applications requiring eight synchronized analog outputs with high accuracy. Ensure the system supply voltage remains between 4.5V and 5.5V to support the 4.096V full-scale range. Consider the 16-lead MSOP package constraints if thermal dissipation or board space is limited compared to the DFN option.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 8-bit resolutions. Variants exist with 2.5V references (LTC2636-L) or zero-scale resets (LTC2636-Z). The IMS-HMI12 variant specifically targets industrial environments requiring mid-scale initialization and higher voltage swings.

Replacement Considerations

Direct pin-compatible substitutes within the same family include LTC2636IMS-LMI12#PBF (2.5V reference) or LTC2636IMS-HZ12#PBF (zero-scale reset). Verify that the alternative reset behavior and reference voltage align with the existing circuit design requirements.