LTC2633CTS8-LX8#TRMPBF

Overview

The LTC2633CTS8-LX8#TRMPBF 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 a temperature coefficient of 10ppm/°C. The device operates on a single 2.7V to 5.5V supply and 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 operating temperature range.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• I²C-compatible serial interface with selectable internal or external reference
• Rail-to-rail output buffers guaranteed monotonic from –40°C to 125°C
• Power-on reset configured to mid-scale in external reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Portable equipment

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the 'C' temperature grade designation aligns with commercial requirements, noting that datasheet performance guarantees may vary between C-grade (0°C to 70°C) and H-grade (-40°C to 125°C) variants. Ensure the external reference mode power-on reset behavior matches system initialization needs.

Selection Notes

Select this part for applications requiring dual low-resolution channels with minimal component count. The LX code specifies operation with an external reference where power-on reset defaults to mid-scale. For higher accuracy, consider the A-grade variant which offers ±1.5LSB INL for 12-bit models, though this 8-bit version shares similar linearity characteristics. Verify supply voltage constraints against the 2.7V minimum requirement for the L-series full-scale voltage.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes 10-bit and 12-bit resolution options. The family shares the same 8-lead TSOT-23 footprint and I²C interface architecture. Variations within the family are defined by resolution, power-on reset behavior, and full-scale voltage settings (2.5V or 4.096V).

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.