LTC2637IMS-HZ10#PBF

Overview

The LTC2637IMS-HZ10#PBF is an octal 10-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 a temperature coefficient of 10ppm/°C. 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. It includes double-buffered data latches, rail-to-rail output buffers, and a power-on reset circuit configured to reset to zero-scale in internal reference mode.

Feature Summary

• Octal architecture with 10-bit resolution and 4.096V full-scale output
• Integrated 10ppm/°C precision reference
• I2C-compatible serial interface with selectable slave addresses
• Power-on reset to zero-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems
• Optical networking

Procurement Notes

Verify the specific ordering suffix HZ10 against official documentation to confirm the hardware revision, package type, and power-on reset behavior. Ensure the application supply voltage remains within the 4.5V to 5.5V range required for the LTC2637-H series to maintain specified performance levels.

Selection Notes

Select this component when eight independent voltage outputs are required with high accuracy and low drift. The 10-bit resolution balances cost and performance for applications not requiring 12-bit precision. Verify that the system can accommodate the 4.5V minimum supply voltage requirement inherent to the 4.096V full-scale configuration.

Part Context

This part belongs to the LTC2637 family, which offers 8-, 10-, and 12-bit resolutions in both DFN and MSOP packages. The 'H' designation indicates the automotive-grade temperature range (-40°C to 125°C) and the 4.096V full-scale output capability. The 'MS' suffix denotes the 16-lead MSOP package, while 'HZ10' specifies the 10-bit resolution and zero-scale power-on reset behavior.

Replacement Considerations

Direct substitutes include other parts within the LTC2637 family with different resolutions or reset behaviors, such as the LTC2637IMS-LZ10#PBF for lower voltage operation or the LTC2637IMS-HMI10#PBF for mid-scale reset. Cross-family replacements require verification of pin compatibility and interface standards.