LTC2637IMS-HMI10#PBF

Overview

The LTC2637IMS-HMI10#PBF is an octal 10-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 on a single 4.5V to 5.5V supply. The device communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 85°C temperature range, and double-buffered data latches. Power-on reset options allow initialization to mid-scale in internal reference mode.

Feature Summary

• Octal architecture with 10-bit resolution and 4.096V full-scale output
• Integrated 10ppm/°C precision reference with selectable internal or external operation
• Rail-to-rail output buffers with ultralow DAC-to-DAC crosstalk (<3nV•s)
• I2C-compatible interface with power-on reset to mid-scale

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 suffix HMI10#PBF against official Analog Devices documentation to confirm the 10-bit resolution, mid-scale power-on reset behavior, MSOP-16 package type, and industrial temperature grade. Ensure compatibility with system voltage requirements of 4.5V to 5.5V for the H-grade variant.

Selection Notes

Select this component when eight independent 10-bit voltage outputs are required with high accuracy and low noise. The H-grade version is suitable for applications requiring a 4.096V full-scale range powered by a 5V supply. Consider the I2C interface constraints and the need for pull-up resistors on SDA and SCL lines during design.

Part Context

This part belongs to the LTC2637 family, which also offers 8-bit and 12-bit resolutions. Variants exist with 2.5V full-scale outputs (LTC2637-L) operating from 2.7V to 5.5V, and different power-on reset behaviors (Zero-Scale or External Reference Mid-Scale). The IMS designation indicates the 16-lead MSOP package.

Replacement Considerations

Direct substitutes within the same family include LTC2637IMS-HMI12#PBF (12-bit), LTC2637IMS-HMI8#PBF (8-bit), and variants with different reset configurations such as LTC2637IMS-HZ10#PBF (Zero-Scale reset). Cross-family replacements require verification of pinout, interface protocol, and electrical specifications.