LTC2631HTS8-LZ10#TRMPBF

Overview

The LTC2631HTS8-LZ10#TRMPBF is a single-channel, 10-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 standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum Integral Nonlinearity (INL) error of ±1 LSB, a typical settling time of 4.2µs at 5V, and a low power consumption of 200µA at VCC = 5V. The unit guarantees monotonic operation over the specified temperature range.

Feature Summary

• Integrated 10ppm/°C precision reference providing a 4.096V full-scale output
• I²C serial interface with support for standard and fast modes up to 400kHz
• Power-on reset circuit configured to clear output to zero-scale upon initialization
• Rail-to-rail buffered output guaranteed monotonic from –40°C to 125°C

Applications

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

Procurement Notes

Verify that the H-grade suffix corresponds to the required automotive temperature range of –40°C to 125°C, as lower grades have restricted ranges. Confirm the LZ10 designation ensures the internal reference is set to 4.096V and the power-on reset defaults to zero-scale. Ensure the TRMPBF suffix matches the required 500-unit tape and reel packaging quantity for production integration.

Selection Notes

Select this component when a 4.096V output span is required, necessitating a minimum supply voltage of 4.5V. The H-grade is mandatory for applications operating above 85°C or requiring automotive qualification. The LZ variant is appropriate if system initialization requires the DAC output to default to 0V rather than mid-scale. Verify I²C address configuration via CA0 and CA1 pins if multiple devices share the bus.

Part Context

This part belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'H' indicates the high-temperature grade, while 'LZ' specifies the 4.096V full-scale voltage and zero-scale power-on reset behavior. The TS8 package denotes the 8-lead ThinSOT (TSOT-23) form factor, which provides a compact solution for space-constrained designs compared to larger packages.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified source material.