LTC2637CMS-HMI10#PBF

Overview

The LTC2637CMS-HMI10#PBF is an octal 10-bit voltage-output digital-to-analog converter from Analog Devices. It features a rail-to-rail output buffer and an integrated precision reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single 4.5V to 5.5V supply and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity error of ±1LSB, a settling time of 4.3µs, and double-buffered data latches for glitch-free updates.

Feature Summary

• Octal 10-bit resolution with rail-to-rail buffered outputs
• Integrated 4.096V precision reference with 10ppm/°C drift
• I2C-compatible serial interface with selectable slave addresses
• Power-on reset configured to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the specific ordering suffix HMI10#PBF against the manufacturer's current product selection guide to confirm package type (MSOP), temperature grade (Commercial), and power-on reset behavior. Ensure the design supports the required 4.5V to 5.5V supply range for the H-grade reference configuration.

Selection Notes

Select this component when eight independent 10-bit voltage outputs are required with low crosstalk and high accuracy. The H-suffix indicates a 4.096V full-scale output requiring a minimum 4.5V supply. Verify that the I2C bus speed and address configuration meet system constraints, and ensure thermal management accommodates the MSOP package dissipation limits under load.

Part Context

This part belongs to the LTC2637 family of octal DACs, which also includes 8-bit and 12-bit variants. The CMS designation identifies the 16-lead MSOP package and Commercial temperature range (0°C to 70°C). The HMI10 suffix specifies the 10-bit resolution, 4.096V internal reference, and mid-scale power-on reset behavior.

Replacement Considerations

Direct substitutes within the same family include LTC2637IMS-HMI10#PBF (identical electrical specs, different marking) or other resolutions like LTC2637IMS-HMI8#PBF and LTC2637IMS-HMI12#PBF if bit-depth adjustments are acceptable. Cross-package replacements such as the DFN version require pinout verification.