LTC2640ITS8-LZ10#TRPBF

Overview

The LTC2640ITS8-LZ10#TRPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single supply ranging from 2.7V to 5.5V. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature. Key electrical parameters include a typical settling time of 3.8µs at ±1LSB for a 10-bit resolution, a maximum integral nonlinearity (INL) of ±1 LSB, and a power consumption of 180µA at 3V. It utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz.

Feature Summary

• Integrated 10ppm/°C precision reference with 2.5V full-scale output
• Rail-to-rail output buffer guaranteed monotonic over temperature
• Power-on reset to zero-scale via asynchronous CLR pin
• Low power operation: 180µA typical supply current at 3V

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Optical networking

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-piece tape and reel packaging option when sourcing this component. Confirm that the I-grade designation matches the required industrial temperature range of –40°C to 85°C for the intended application environment.

Selection Notes

Select this part for applications requiring a single-channel DAC with low power consumption and high accuracy in a compact TSOT-23 package. Ensure the system supply voltage remains within the 2.7V to 5.5V range. Consider the H-grade variant if operation up to 125°C is required, or the A-grade if tighter linearity specifications are necessary.

Part Context

This component belongs to the LTC2640 family of single voltage-output DACs available in 12-, 10-, and 8-bit resolutions. The family shares a common 8-lead TSOT-23 package and serial interface architecture, differing primarily in resolution, accuracy grade, and power-on reset behavior.

Replacement Considerations

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