LTC2634CMSE-HMI8#TRPBF

Overview

The LTC2634CMSE-HMI8#TRPBF is a quad 8-bit voltage output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. It includes rail-to-rail output buffers, double-buffered data latches, and a power-on reset circuit configured to set outputs to mid-scale in internal reference mode. The component is housed in a 10-lead MSOP package and supports commercial temperature operation.

Feature Summary

• Quad 8-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with guaranteed monotonicity
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to mid-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the C temperature grade matches the required commercial operating range of 0°C to 70°C for the application environment.

Selection Notes

Select this part when four independent 8-bit voltage outputs are required within a compact 10-lead MSOP footprint. The HMI suffix ensures the DAC outputs initialize to mid-scale upon power-up, which may be necessary for specific system safety or initialization protocols. Verify that the 2.5V full-scale range meets the downstream signal requirements.

Part Context

This component belongs to the LTC2634 family, which offers variations in resolution (8, 10, or 12 bits), package type (QFN or MSOP), and power-on reset behavior. The CMSE variant specifically denotes the commercial temperature grade, MSOP package, 8-bit resolution, and mid-scale internal reference reset configuration.

Replacement Considerations

Direct substitutes within the same family include LTC2634IMSE-HMI8#TRPBF for industrial temperature range or LTC2634HMSE-HMI8#TRPBF for automotive applications. For different resolutions, consider LTC2634CMSE-HMI10#TRPBF or LTC2634CMSE-HMI12#TRPBF.