LTC2640ITS8-HZ10#TRMPBF

Overview

The LTC2640ITS8-HZ10#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 utilizes a SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz. Key electrical characteristics include a typical settling time of 4.2µs at ±1LSB, a maximum integral nonlinearity (INL) of ±1LSB, and a power-down current of 1.8µA maximum. It incorporates a power-on reset circuit that defaults the output to zero-scale.

Feature Summary

• Integrated 10ppm/°C precision reference yielding a 4.096V full-scale output
• SPI/MICROWIRE compatible 3-wire serial interface supporting clock rates up to 50MHz
• Power-on reset function configured to clear output to zero-scale upon initialization
• Asynchronous DAC clear pin for immediate zero-scale reset

Applications

• Process control and industrial automation systems
• Portable equipment requiring low power consumption
• Automatic test equipment
• Mobile communications infrastructure

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging quantity. Confirm the temperature grade 'I' corresponds to the industrial range of –40°C to 85°C. Ensure the H-grade designation aligns with the required 4.5V to 5.5V supply operation and 4.096V full-scale output specifications.

Selection Notes

Select this component when a 10-bit resolution with a 4.096V internal reference is required in an 8-lead TSOT-23 package. The I-grade temperature rating suits applications operating between –40°C and 85°C. Choose this part over the M-grade variant if a zero-scale power-on reset state is necessary for system safety or initialization.

Part Context

This part belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'H' suffix denotes the high-voltage/full-scale variant (4.096V) requiring a minimum 4.5V supply. The 'Z' suffix specifies the zero-scale power-on reset behavior, distinguishing it from the mid-scale reset 'M' variant.

Replacement Considerations

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