LTC2631AITS8-HZ12#TRMPBF

Overview

The LTC2631AITS8-HZ12#TRMPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a temperature coefficient of 10ppm/°C and operates within a supply voltage range of 4.5V to 5.5V for the H-grade variant. 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 ±1LSB, a typical settling time of 4.6µs at VCC = 5V, and a power-down current of 4µA maximum. It is housed in an 8-lead TSOT-23 package and guarantees monotonic operation over the full automotive temperature range of –40°C to 125°C.

Feature Summary

• 12-bit resolution with ±1LSB maximum INL error
• Integrated 10ppm/°C precision reference outputting 4.096V full-scale
• I²C interface with 400kHz fast mode support
• Power-on reset to zero-scale (H-grade: –40°C to 125°C)

Applications

• Process control and industrial automation systems
• Automotive electronic modules
• Portable battery-powered equipment

Procurement Notes

Verify the specific suffix 'ITS8' against official documentation to confirm pinout and package variations. Confirm that the H-grade temperature rating aligns with system requirements. Ensure I²C address configuration via CA0/CA1 pins matches the bus topology. Check RoHS compliance status for environmental regulations.

Selection Notes

Select this component when a single-channel DAC with high accuracy (±1LSB INL) and low drift is required in a compact TSOT-23 package. The H-grade version is suitable for automotive applications requiring operation up to 125°C. Ensure the supply voltage meets the 4.5V minimum requirement for the 4.096V full-scale output configuration.

Part Context

This part belongs to the LTC2631 family of single-channel DACs. Variants differ by resolution (8/10/12-bit), full-scale voltage (2.5V or 4.096V), temperature grade (C/I/H), and power-on reset behavior (Zero/Mid-scale). The 'A' designation indicates the highest accuracy grade with ±1LSB INL.

Replacement Considerations

Direct substitutes within the same family include LTC2631AITS8-LZ12#TRMPBF (2.5V FS, Zero Reset) or LTC2631AITS8-HM12#TRMPBF (4.096V FS, Mid-Scale Reset). Verify pin compatibility and electrical specifications before substitution.