LTC2633ACTS8-LZ12#TRMPBF

Overview

The LTC2633ACTS8-LZ12#TRMPBF is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5 LSB, rail-to-rail output buffers, and guaranteed monotonicity over the –40°C to 125°C temperature range. Power-on reset defaults to zero-scale.

Feature Summary

• Dual 12-bit resolution with ±1.5 LSB maximum INL error
• Integrated 2.5V full-scale reference with 10ppm/°C drift
• I²C interface with selectable standard/fast mode clock rates
• Power-on reset to zero-scale for consistent initialization

Applications

• Mobile communications
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive systems

Procurement Notes

Verify the #TRMPBF suffix indicates a 500-unit tape and reel configuration, distinct from the standard 2,500-unit reel. Confirm the 'A' grade designation for ±1.5 LSB INL and 'L' code for 2.5V internal reference. Ensure the 'H' temperature grade matches the required –40°C to 125°C operating range for the specific application environment.

Selection Notes

Select this part when dual-channel precision is required in a compact TSOT-23 footprint. The 2.5V internal reference suits low-voltage single-supply designs. Compare against the 'H' variant if a 4.096V output span is needed, which requires a minimum 4.5V supply. Consider the 'I' or 'X' reset codes if mid-scale initialization is preferred over zero-scale.

Part Context

This component belongs to the LTC2633 family of dual DACs. The 'ACTS8' designation specifies the commercial/high-grade silicon in the TSOT-23 package. The 'LZ12' suffix defines the 2.5V full-scale voltage, zero-scale power-on reset behavior, and 12-bit resolution. It serves as a compact analog output solution for embedded systems requiring I²C connectivity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical parameters against other LTC2633 variants such as LTC2633ACTS8-LI12#TRPBF for different reset behaviors.