LTC2634IMSE-LMX10#PBF

Overview

The LTC2634IMSE-LMX10#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 with a full-scale output of 2.5V and operates from a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the -40°C to 85°C temperature range, and a maximum integral nonlinearity error of ±1 LSB. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Quad 10-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• SPI/MICROWIRE compatible 3-wire serial interface operating at 50MHz
• Power-on reset to mid-scale in external reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction. Confirm the IMSE designation corresponds to the Industrial temperature grade (-40°C to 85°C) and the MSE package type. Ensure the LMX10 configuration matches the required power-on reset behavior for external reference applications.

Selection Notes

Select this part when a quad 10-bit DAC with low noise and high accuracy is required in a compact MSOP package. The LMX10 variant is suitable for designs requiring a mid-scale power-on state under external reference conditions. Consider the H-grade version if operation up to 125°C is necessary.

Part Context

This component belongs to the LTC2634 family of quad DACs, which also offers 12-bit and 8-bit resolutions. Variants are available in both QFN and MSOP packages with different full-scale voltages (2.5V or 4.096V) and power-on reset options. The IMSE-LMX10 specifically targets industrial applications requiring precise analog output generation.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2634IMSE-LMI10#PBF (internal reference reset) or LTC2634IMSE-LZ10#PBF (zero-scale reset). For higher resolution, consider the LTC2634IMSE-LMX12#PBF. Lower resolution options like the 8-bit variants are also available.