LTC2636IMS-HMI8#TRPBF

Overview

The LTC2636IMS-HMI8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features eight independent channels with rail-to-rail output buffers and a guaranteed monotonic transfer function. The device integrates a precision reference providing a 4.096V full-scale output, operating on a single 4.5V to 5.5V supply. Communication is handled via a 50MHz SPI/MICROWIRE-compatible 3-wire serial interface. Power-on reset defaults to mid-scale in internal reference mode. The component is housed in a 16-lead MSOP package and supports industrial temperature ranges.

Feature Summary

• Octal 8-Bit Architecture: Eight independent DAC channels with rail-to-rail output buffers.
• Integrated Precision Reference: Internal 4.096V full-scale output with ±10ppm/°C drift.
• Serial Interface: 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz.
• Power-On Reset: Configurable reset to mid-scale in internal reference mode upon power-up.

Applications

• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems
• Optical Networking

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the IMS designation corresponds to the industrial temperature grade (-40°C to 85°C) and the MSOP package type. Ensure compatibility with system voltage requirements of 4.5V to 5.5V for the H-grade internal reference configuration.

Selection Notes

Select this part when eight independent 8-bit voltage outputs are required with high accuracy and low crosstalk. The H-grade variant is necessary for applications requiring a 4.096V full-scale range. Verify that the system power supply remains within the 4.5V to 5.5V window. Consider the MSOP package if board space allows for 16 leads, noting the availability of hardware clear and LDAC pins unique to this package.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 12-bit resolutions. Variants exist with 2.5V full-scale outputs (L-grade) or external reference capabilities (MX suffix). The IMS-HMI8 specifically denotes the 8-bit resolution, industrial temperature range, MSOP package, and mid-scale power-on reset behavior.

Replacement Considerations

Direct substitutes within the same family include LTC2636IMS-LMI8#TRPBF for 2.5V full-scale operation or LTC2636IMS-HMX8#TRPBF for external reference usage. Cross-family replacements like the LTC2637 offer I2C interfaces instead of SPI.