LTC2634CMSE-HZ10#PBF

Overview

The LTC2634CMSE-HZ10#PBF is a quad 10-bit voltage output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference providing a 4.096V full-scale output, requiring a 4.5V to 5.5V supply. The device includes rail-to-rail output buffers and guarantees monotonicity over the commercial temperature range of 0°C to 70°C. Communication occurs via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Upon power-up, the outputs reset to zero-scale.

Feature Summary

• Quad 10-bit DACs with integrated 4.096V precision reference
• Rail-to-rail output buffers with guaranteed monotonicity
• 3-wire serial interface supporting up to 50MHz clock rates
• Power-on reset to zero-scale for consistent initialization

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction compliant with RoHS standards. Confirm the MSE package designation corresponds to the 10-lead plastic MSOP form factor required for the target PCB layout. Ensure the C-grade temperature rating aligns with the operational environment constraints.

Selection Notes

Select this part when a quad channel configuration with a fixed 4.096V internal reference is required. The H suffix denotes the 4.096V full-scale range, necessitating a minimum 4.5V supply. The Z suffix specifies the zero-scale power-on reset behavior. Verify that the 0°C to 70°C commercial temperature range meets system requirements.

Part Context

This component belongs to the LTC2634 family, which offers 8-, 10-, and 12-bit resolutions in both QFN and MSOP packages. The CMSE variant specifically utilizes the MSOP footprint, distinguishing it from the QFN-based UD versions within the same electrical specification group.

Replacement Considerations

Other members of the LTC2634 family, such as the LTC2634IMSE-HZ10#PBF, offer identical electrical performance but differ only in the specified operating temperature range (Industrial vs. Commercial).

FAQ

What is the power-on reset state for this specific model?

The 'Z' suffix indicates that the DAC outputs reset to zero-scale upon power-up.

Can this device operate with an external reference?

Yes, while it has an internal reference, the REF pin can be used to input an external reference voltage to set the full-scale output.

What is the maximum serial clock frequency?

The SPI/MICROWIRE compatible interface supports clock rates up to 50MHz.