LTC2632AHTS8-LI12#TRPBF

Overview

The LTC2632AHTS8-LI12#TRPBF 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 4.096V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5LSB, a settling time of 4.1µs at 5V, and low power consumption of 0.5mA at 5V. The part includes a power-on reset circuit that sets the output to mid-scale.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C)
• Maximum INL error of ±1.5LSB for high accuracy
• SPI/MICROWIRE compatible 3-wire serial interface operating up to 50MHz
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm the 'H' grade corresponds to the 4.5V to 5.5V supply range and 4.096V full-scale output. Ensure the 'LI' code matches the required mid-scale power-on reset behavior in internal reference mode. Check for automotive temperature range availability if operation below 0°C is required.

Selection Notes

Select this component when a dual-channel, high-accuracy DAC is needed in a compact TSOT-23 package. The 4.096V full-scale output requires a minimum supply voltage of 4.5V. Choose this part over the 'L' variant if the application demands a higher output swing and can support the higher minimum supply voltage. Verify that the 50MHz serial interface speed meets the system's data throughput requirements.

Part Context

This part belongs to the LTC2632 family of dual DACs. The 'A' designation specifies the electrical grade with ±1.5LSB maximum INL. The 'H' indicates the 4.096V full-scale version requiring 4.5V–5.5V supplies. The 'LI' suffix denotes the mid-scale power-on reset option in internal reference mode. The '#TRPBF' suffix indicates lead-free packaging in a 2,500-piece tape and reel.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices directly for cross-reference information or alternative parts within the LTC2632 family with different resolution or package options.