LTC2631CTS8-LZ10#TRPBF

Overview

The LTC2631CTS8-LZ10#TRPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It integrates a precision reference with a temperature coefficient of 10ppm/°C and operates within a supply voltage range of 2.7V to 5.5V. The device features a rail-to-rail output buffer that is guaranteed monotonic over the operating temperature range. It utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. This specific variant includes a power-on reset circuit configured to clear the output to zero-scale upon initialization.

Feature Summary

• 10-bit resolution with ±1 LSB maximum Integral Nonlinearity (INL)
• Integrated 10ppm/°C precision reference providing a full-scale output of 2.5V
• I²C interface with nine selectable slave addresses via CA0 and CA1 pins
• Power-on reset function defaults output to zero-scale

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the complete part number including the suffix #TRPBF to confirm tape and reel packaging specifications. Confirm the temperature grade 'C' corresponds to the required commercial operating range of 0°C to 70°C for the application environment. Ensure the I²C address configuration via CA0 and CA1 pins matches the system bus requirements.

Selection Notes

Select this component when a 10-bit resolution is sufficient for the application, offering lower power consumption compared to the 12-bit version. The 'L' suffix indicates a 2.5V full-scale output compatible with 2.7V supplies, whereas the 'H' variant requires 4.5V minimum. Choose the 'Z' suffix if a zero-scale power-on reset is preferred over mid-scale initialization. Verify that the TSOT-23 package footprint fits the PCB layout constraints.

Part Context

This part belongs to the LTC2631 family of single-channel DACs, which also includes 8-bit and 12-bit variants. The family shares common architectural features such as the I²C interface and integrated reference options. The LTS2631 series is designed to replace older discrete DAC solutions in space-constrained designs requiring high accuracy and low power.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Designers should consult Analog Devices marketing or technical support for qualified alternatives.