LTC2633HTS8-LX10#TRMPBF

Overview

The LTC2633HTS8-LX10#TRMPBF is a dual 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. 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 communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a supply current of 0.4mA at 3V, and guaranteed monotonicity over the –40°C to 125°C temperature range. The power-on reset configuration is set to mid-scale for external reference mode.

Feature Summary

• Dual 10-bit DACs with rail-to-rail output buffers and integrated 2.5V precision reference
• I²C-compatible serial interface with selectable internal or external reference input
• Maximum INL error of ±1 LSB and low noise performance (0.75mVP-P)
• Guaranteed monotonic operation across the –40°C to 125°C automotive temperature range

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive electronics

Procurement Notes

Verify the ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging quantity, distinct from the standard 2,500-unit reel. Confirm the H-grade designation corresponds to the specified –40°C to 125°C operating temperature range. Ensure the LX10 code aligns with the required 10-bit resolution and mid-scale power-on reset behavior for external reference configurations.

Selection Notes

Select this part when a compact dual-channel solution with high accuracy is required. The LX suffix specifies a mid-scale power-on reset state suitable for external reference applications. For lower cost requirements where higher linearity is acceptable, consider the non-A grade variants. Verify that the 2.7V minimum supply voltage meets the system's power budget constraints.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes 8-bit and 12-bit resolutions. The 'A' grade variant offers improved linearity (±1.5 LSB max INL for 12-bit), while the base model provides ±1 LSB for 10-bit resolution. The TSOT-23 package allows for space-constrained PCB layouts compared to larger QFN or MSOP options available in the broader series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and software register mapping if considering alternative dual DACs from other manufacturers.