LTC2640CTS8-HM10#TRMPBF

Overview

The LTC2640CTS8-HM10#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 within a supply voltage range of 4.5V to 5.5V. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature and utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. It incorporates a power-on reset circuit configured to set the output to mid-scale upon initialization. The component is housed in an 8-lead TSOT-23 package and supports operation across an automotive temperature range of –40°C to 125°C.

Feature Summary

• 10-bit resolution with ±1LSB maximum integral nonlinearity error
• Integrated 4.096V reference with 10ppm/°C temperature coefficient
• Power-on reset to mid-scale for consistent system initialization
• Automotive grade operation from –40°C to 125°C

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify that the H-grade suffix confirms the –40°C to 125°C operating range and 4.5V minimum supply requirement. Confirm the M suffix indicates mid-scale power-on reset behavior. Ensure the TRMPBF designation matches the required 500-unit tape and reel packaging quantity for production integration.

Selection Notes

Select this part when a 10-bit DAC with a fixed 4.096V internal reference is required for automotive or high-temperature industrial applications. The mid-scale reset option suits designs where downstream circuits remain active during power-up. Verify that the 4.5V to 5.5V supply range aligns with the system power architecture.

Part Context

This component belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The specific model combines the H-grade automotive temperature rating with the HM10 configuration, distinguishing it from commercial variants and other reset options like zero-scale clear.

Replacement Considerations

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