LTC2640HTS8-LZ10#TRMPBF

Overview

The LTC2640HTS8-LZ10#TRMPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 4.096V and operates on a single supply voltage ranging from 4.5V to 5.5V. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key specifications include a typical settling time of 4.2µs, a maximum integral nonlinearity (INL) error of ±1 LSB, and a power-on reset function that clears the output to zero-scale upon power-up.

Feature Summary

• Integrated 10ppm/°C precision reference with 4.096V full-scale output
• 10-bit resolution with ±1 LSB maximum INL error
• Power-on reset to zero-scale for consistent system initialization
• Low power consumption: 200µA typical supply current at 5V

Applications

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

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration as defined in the manufacturer's ordering guide. Confirm the H-grade designation ensures operation within the automotive temperature range of –40°C to +125°C. Ensure the LTS8 package type matches the target PCB footprint requirements.

Selection Notes

Select this part when a 4.096V internal reference is required without external components. The H-grade temperature rating is necessary for environments exceeding 85°C. The LZ suffix mandates a zero-scale power-on state, which is critical for safety in applications where downstream circuits must remain inactive during DAC power-up sequences.

Part Context

This component belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The HTS8-LZ10 variant specifically combines the high-temperature H-grade, zero-reset LZ option, and 10-bit resolution. Other family members include the LTC2640LM10 for mid-scale reset or the LTC2640L series for lower supply voltage operation down to 2.7V.

Replacement Considerations

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