LTC2631CTS8-LM8#TRPBF

Overview

The LTC2631CTS8-LM8#TRPBF is an 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., housed in an 8-lead TSOT-23 package. It features a rail-to-rail output buffer and operates on a single supply of 2.7V to 5.5V, delivering a full-scale output of 2.5V with an internal reference. The device utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical characteristics include a maximum integral nonlinearity (INL) of ±0.5 LSB, a typical settling time of 3.2µs at 3V, and a supply current of 180µA at 3V. The part includes a power-on reset circuit configured to initialize the output to mid-scale.

Feature Summary

• Integrated precision reference providing a 2.5V full-scale output with 10ppm/°C temperature coefficient
• I²C serial interface compatible with standard (100kHz) and fast (400kHz) clock rates
• Rail-to-rail buffered output guaranteed monotonic over temperature
• Power-on reset option to initialize DAC output to mid-scale

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the 2,500-piece tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm that the C-grade temperature range (0°C to 70°C) aligns with the operational requirements of the target application environment before procurement.

Selection Notes

Select this component for applications requiring an 8-bit resolution DAC with a 2.5V full-scale range and low power consumption. Ensure the system supply voltage remains within the 2.7V to 5.5V range. Consider the mid-scale power-on reset behavior if zero-scale initialization is required, or choose the Z-suffix variant instead.

Part Context

This part belongs to the LTC2631 family of single-channel voltage-output DACs available in 12-, 10-, and 8-bit resolutions. The family integrates a high-accuracy reference and offers options for different full-scale voltages (2.5V or 4.096V) and power-on reset states. The LTS8 package denotes the 8-lead plastic TSOT-23 form factor used across the series.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. For equivalent functionality, consider other members of the LTC2631 family such as the LTC2631LZ8 or LTC2631LM10, ensuring compatibility with resolution, reset state, and temperature grade requirements.