LTC2633HTS8-LO8#TRPBF

Overview

The LTC2633HTS8-LO8#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 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 full-scale reference (10ppm/°C drift)
• I²C interface with selectable power-on reset to high impedance state
• Rail-to-rail output buffers with ±0.5 LSB maximum INL error
• Low power consumption: 0.4mA typical supply current at 3V

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the LO code corresponds to the High Impedance power-on reset option for the 2.5V full-scale variant. Ensure the HTS8 designation matches the automotive temperature grade (-40°C to 125°C) and TSOT-23 package type required for the design.

Selection Notes

Select this part when a dual-channel DAC with low pin count and high initial output impedance is required. The LO suffix ensures outputs remain in a high-impedance state upon power-up, preventing unintended signals to downstream circuits. Choose the H-grade version for automotive or wide-temperature environments requiring operation from -40°C to 125°C.

Part Context

This component belongs to the LTC2633 family of dual I²C DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The LTC2633HTS8-LO8#TRPBF specifically combines 8-bit resolution, 2.5V internal reference, and high-impedance reset within the automotive temperature grade.

Replacement Considerations

Direct substitutes within the same family include LTC2633HTS8-LI8#TRPBF (mid-scale reset) or LTC2633HTS8-LZ8#TRPBF (zero-scale reset). For higher resolution needs, consider LTC2633HTS12-LO12#TRPBF. Cross-family replacements require verifying I²C compatibility and output drive capabilities.