LTC2631ACTS8-HM12#TRPBF

Overview

The LTC2631ACTS8-HM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features an integrated precision reference with a full-scale output of 4.096V and operates within a supply voltage range of 4.5V to 5.5V. The device utilizes a 2-wire I²C-compatible serial interface supporting clock rates up to 400kHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a typical settling time of 4.6µs at ±1LSB accuracy, and a power-on reset function that defaults the output to mid-scale. It is housed in an 8-lead TSOT-23 package and supports operation from –40°C to 125°C.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C temperature coefficient
• Maximum INL error of ±1 LSB for high DC accuracy
• I²C interface with selectable addresses and 400kHz fast mode support
• Power-on reset to mid-scale option via REF_SEL pin configuration

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 specific ordering suffix #TRMPBF against the datasheet definition for tape and reel quantities. The source document indicates that #TRMPBF corresponds to a 500-piece tape and reel, whereas #TRPBF typically denotes a 2,500-piece reel. Confirm packaging requirements with the manufacturer or authorized distributor prior to procurement to ensure alignment with production volume needs.

Selection Notes

Select this part when a 12-bit resolution with ±1 LSB linearity is required alongside a fixed 4.096V internal reference. Ensure the system supply voltage remains between 4.5V and 5.5V, as lower voltages are not supported for the H-grade variant. Choose this model over the Z-grade if a mid-scale power-on reset state is preferred for system initialization stability.

Part Context

This component belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'A' designation indicates the highest accuracy grade with ±1 LSB maximum INL. The 'H' suffix specifies the 4.096V full-scale range requiring a minimum 4.5V supply, while 'M' designates the mid-scale power-on reset behavior. It shares the same 8-lead TSOT-23 footprint as other variants in the series.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified source material. Designers should consult Analog Devices marketing for information on non-standard lead-based finish parts or alternative packages.