LTC2640HTS8-LM10#TRMPBF

Overview

The LTC2640HTS8-LM10#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 4.5V to 5.5V supply. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Key specifications include a typical settling time of 4.2µs, a maximum integral nonlinearity (INL) of ±1 LSB, and power consumption of 200µA at 3V equivalent operation. The part supports power-on reset to mid-scale and is housed in an 8-lead TSOT-23 package.

Feature Summary

• Integrated 10ppm/°C precision reference yielding 4.096V full-scale output
• 10-bit resolution with ±1 LSB maximum INL error
• Rail-to-rail output buffer guaranteed monotonic over temperature
• SPI/MICROWIRE compatible 3-wire serial interface operating up to 50MHz

Applications

• Process control and industrial automation systems
• Portable equipment requiring low power consumption
• Automatic test equipment
• Optical networking applications

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration as defined in the manufacturer's ordering information. Confirm that the H-grade designation aligns with the required automotive temperature range of –40°C to 125°C for the intended application environment.

Selection Notes

Select this component when a 4.096V internal reference is required alongside 10-bit resolution. Ensure the system supply voltage remains within the 4.5V to 5.5V range specified for the H-grade variant. Consider the mid-scale power-on reset behavior if downstream circuits are sensitive to initial DAC states during power-up sequences.

Part Context

This part belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'H' grade denotes the extended temperature range suitable for automotive environments, while 'M' specifies the mid-scale power-on reset function. The 'TS8' indicates the 8-lead ThinSOT plastic package type used for space-constrained designs.

Replacement Considerations

Direct functional substitutes within the same family include the LTC2640HM10#TRMPBF (commercial grade) or LTC2640IM10#TRMPBF (industrial grade) if the temperature range requirements differ. For zero-scale reset variants, consider the LTC2640HZ10#TRMPBF.