LTC2636CMS-HMX12#PBF

Overview

The LTC2636CMS-HMX12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 4.096V full-scale output with an integrated reference and operates on a 4.5V to 5.5V supply. The device includes double-buffered data latches, ultralow crosstalk between DACs (<2.4nV•s), and guaranteed monotonicity over the operating temperature range. It communicates via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Octal 12-bit resolution with rail-to-rail output buffers
• Integrated 4.096V full-scale internal reference
• Power-on reset to mid-scale in external reference mode
• Ultralow DAC-to-DAC crosstalk (<2.4nV•s)

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment

Procurement Notes

Verify the H-grade automotive temperature rating (-40°C to 125°C) and MSOP-16 package configuration. Confirm the MX suffix indicates power-on reset to mid-scale in external reference mode. Ensure the supply voltage meets the 4.5V minimum requirement for the H-series variant.

Selection Notes

Select this part for applications requiring eight independent 12-bit channels with high accuracy and low crosstalk. The H-grade ensures operation in harsh environments up to 125°C. Verify that the system power supply provides at least 4.5V, as the H-series does not support voltages below this threshold.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8/10/12-bit), full-scale voltage (L-series 2.5V or H-series 4.096V), and power-on reset behavior (Z, MI, or MX). The CMS designation specifies the commercial temperature grade (0°C to 70°C) within the H-series electrical performance envelope.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.