LTC2631CTS8-LM8#TRMPBF

Overview

The LTC2631CTS8-LM8#TRMPBF is a single-channel, 8-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features an integrated precision reference with a full-scale output of 2.5V and operates from a single 2.7V to 5.5V supply. The device utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include a maximum integral nonlinearity (INL) error of ±0.5 LSB, a typical settling time of 3.2µs, and a low power consumption of 180µA at 3V. The part includes a power-on reset circuit configured to initialize the output to mid-scale upon power-up.

Feature Summary

• 8-Bit Resolution with ±0.5 LSB Maximum INL Error
• Integrated 2.5V Full-Scale Reference (10ppm/°C Drift)
• I²C Interface with Power-On Reset to Mid-Scale
• Rail-to-Rail Output Buffer in 8-Lead TSOT-23 Package

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Portable Equipment

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm that the C-grade temperature range (0°C to 70°C) aligns with the intended operational environment requirements before procurement.

Selection Notes

Select this component for applications requiring an 8-bit resolution DAC with a 2.5V internal reference range. The LM suffix designates a mid-scale power-on reset state; choose the LZ suffix if zero-scale initialization is required. Ensure the system supply voltage remains within the 2.7V to 5.5V range specified for the L-series devices.

Part Context

This part belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The LTS8 package denotes an 8-lead plastic TSOT-23 form factor. The C grade specifies commercial temperature operation, while the H grade extends the range to -40°C to 125°C for automotive or harsh industrial environments.

Replacement Considerations

Direct pin-compatible substitutes within the same family include LTC2631CTS8-LZ8#TRMPBF (zero-scale reset) and LTC2631ITS8-LM8#TRMPBF (industrial temperature grade). Higher accuracy variants such as the LTC2631A series offer tighter linearity specifications but maintain the same package and interface.