LTC2633ACTS8-LX12#TRPBF

Overview

The LTC2633ACTS8-LX12#TRPBF is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 utilizes 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. Supply current is typically 0.4mA at 3V.

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 power-on reset to mid-scale in external reference mode
• Rail-to-rail output buffers in an 8-lead TSOT-23 package

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the 2,500-piece tape and reel packaging configuration as defined in the manufacturer's order information. Confirm that the LX12 designation matches the required internal reference mode and power-on reset behavior for the target application design.

Selection Notes

Select this component when dual-channel precision DAC functionality is required within a compact 8-lead TSOT-23 footprint. The LX12 variant is appropriate for designs requiring mid-scale initialization under external reference conditions. Ensure the system supply voltage remains within the 2.7V to 5.5V range specified for the LTC2633-L series.

Part Context

This part belongs to the LTC2633 family of dual DACs, which also includes variants with SPI interfaces (LTC2632), single channels (LTC2631), quad channels (LTC2635), and octal channels (LTC2637). The family shares common architectural features such as low-drift references and rail-to-rail outputs but differs in channel count and communication protocol.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited due to interface differences. The LTC2632ACTS8-LX12 offers identical pinout and performance but uses an SPI interface instead of I²C. Verify software compatibility before substituting.