LTC2634IMSE-HMI10#PBF

Overview

The LTC2634IMSE-HMI10#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, operating from a 4.5V to 5.5V supply. The device includes rail-to-rail output buffers and guarantees monotonicity over the -40°C to 85°C temperature range. Communication occurs via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Quad 10-bit resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers guaranteed monotonic from -40°C to 85°C
• 3-wire SPI/MICROWIRE serial interface supporting up to 50MHz clock
• 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 HMI10#PBF against official Analog Devices documentation to confirm the 10-bit resolution, mid-scale internal reset behavior, and lead-free status. Ensure the 10-lead MSOP package matches the design requirements. Confirm that the 4.5V minimum supply voltage aligns with the system power architecture.

Selection Notes

Select this component when four independent 10-bit DAC channels are required with a fixed 4.096V full-scale range. The internal reference eliminates external component count compared to external reference variants. Verify that the 4.5V to 5.5V supply range is compatible with the system rails, as lower voltage operation is not supported for the H-grade full-scale output.

Part Context

This part belongs to the LTC2634 family of quad DACs, which also includes 12-bit and 8-bit resolutions. Variants exist with 2.5V full-scale outputs (L-series) or different power-on reset behaviors (Z-series for zero-scale). The IMSE designation indicates the Industrial temperature grade (-40°C to 85°C) and the 10-lead MSOP package type.

Replacement Considerations

Direct substitutes within the same family include LTC2634IMSE-HMX10#PBF (external reference mode reset) or LTC2634IMSE-HZ10#PBF (zero-scale reset). For higher resolution, consider LTC2634IMSE-HMI12#PBF; for lower resolution, LTC2634IMSE-HMI8#PBF. All share the same pinout and interface.