LTC2631HTS8-LM10#TRPBF

Overview

The Analog Devices LTC2631HTS8-LM10#TRPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) housed in an 8-lead TSOT-23 package. It features an integrated precision reference with 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 and supports I2C interfaces at standard (100kHz) and fast (400kHz) modes. It incorporates a power-on reset circuit configured to initialize the output to mid-scale upon power-up.

Feature Summary

• 10-bit resolution with 4.096V full-scale output using internal reference
• Integrated 10ppm/°C precision reference available at REF pin
• I2C-compatible serial interface supporting 400kHz clock rates
• Power-on reset to mid-scale option for consistent initialization

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms the tape and reel packaging format. Confirm the H-grade designation matches the required -40°C to 125°C automotive temperature range. Ensure the LM10 suffix correctly specifies the mid-scale power-on reset behavior and 10-bit resolution for system compatibility.

Selection Notes

Select this part when a 4.096V output span is required with mid-scale initialization. The H-grade is necessary for automotive or high-temperature environments (-40°C to 125°C). Compare against LTC2631L variants if a lower 2.7V–5.5V supply range or 2.5V output is sufficient for the application.

Part Context

This component belongs to the LTC2631 family of single-channel DACs. Variants differ by resolution (8/10/12-bit), full-scale voltage (2.5V/4.096V), temperature grade (C/I/H), and power-on reset state (Zero/Mid-scale). The HTS8 indicates the H-grade temperature rating and TSOT-23 package.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Verify pinout and electrical specifications against other members of the LTC2631 family before substitution.

FAQ

What is the default output state after power-up?

The output initializes to mid-scale due to the 'M' suffix in the part number.

Can the internal reference be used as an external input?

Yes, the REF pin can accept an external voltage to set the full-scale output, overriding the internal reference.

What is the minimum supply voltage for this specific variant?

The LTC2631-H variant requires a supply voltage between 4.5V and 5.5V.