LTC2633HTS8-LX8#TRPBF

Overview

The LTC2633HTS8-LX8#TRPBF is a dual 8-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 ±0.5 LSB, a typical supply current of 0.4mA at 3V, and rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C temperature range.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• I²C interface with selectable internal or external reference input
• Power-on reset configured to mid-scale in external reference mode
• Rail-to-rail output buffers with ±0.5 LSB maximum INL error

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption
• Automotive electronics operating in harsh thermal environments

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm that the LX code corresponds to the mid-scale power-on reset behavior in external reference mode. Ensure the H-grade designation matches the required –40°C to 125°C automotive temperature range for the application environment.

Selection Notes

Select this part when a dual-channel, low-pin-count DAC is required for battery-powered or space-constrained designs. The 8-bit resolution is suitable for applications not requiring high precision, while the integrated reference simplifies board layout. Choose the LX variant specifically if the system requires outputs to settle at mid-scale upon power-up when using an external reference source.

Part Context

This component belongs to the LTC2633 family, which offers various combinations of resolution (8-, 10-, 12-bit), accuracy grades (standard vs. A-grade), and power-on reset options. The HTS8 suffix denotes the automotive temperature grade (H) and the 8-lead TSOT-23 package type. The L suffix specifies the 2.5V full-scale internal reference configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices for direct replacements or evaluate other members of the LTC2633 family based on specific resolution and reset requirements.