LTC2634IMSE-HZ10#PBF

Overview

The LTC2634IMSE-HZ10#PBF is a quad 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 operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the -40°C to 85°C industrial temperature range, and a power-on reset circuit that clears outputs to zero-scale. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. It is housed in a 10-lead MSOP package.

Feature Summary

• Quad 10-bit DACs with integrated 4.096V precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• Power-on reset to zero-scale for consistent initialization
• Industrial temperature grade (-40°C to 85°C) in 10-lead MSOP package

Applications

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

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and standard tube packaging. Confirm the IMSE designation corresponds to the Industrial temperature grade and MSOP package type. Ensure the HZ10 configuration matches the required 4.096V full-scale output and zero-scale power-on reset behavior before integration.

Selection Notes

Select this part when a quad DAC configuration is required with a fixed 4.096V internal reference. The H suffix restricts operation to 4.5V–5.5V supplies, unlike the L variant which supports 2.7V. The Z suffix ensures outputs start at zero upon power-up, which is critical for safety-sensitive applications. The I grade provides extended temperature coverage compared to the C grade.

Part Context

This component belongs to the LTC2634 family, which offers 8-, 10-, and 12-bit resolutions in both QFN and MSOP packages. The IMSE-HZ10 variant specifically targets industrial applications requiring precise voltage generation with minimal external components due to the integrated reference and buffer amplifiers.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2634IMSE-LZ10#PBF (2.5V FS, 2.7V min supply) or LTC2634IMSE-HZ12#PBF (12-bit resolution). Verify supply voltage constraints and resolution requirements when substituting.