LTC2632HTS8-LX12#TRMPBF

Overview

The LTC2632HTS8-LX12#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 2.5V reference with a temperature coefficient of 10ppm/°C and operates on a single supply ranging from 2.7V to 5.5V. The device utilizes a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, a settling time of 4.4µs at 3V, and a typical supply current of 0.4mA at 3V. The part is designed for automotive applications within the -40°C to +125°C temperature range.

Feature Summary

• Dual 12-bit DACs with integrated 2.5V precision reference (10ppm/°C)
• Automotive temperature grade (-40°C to +125°C) in 8-lead TSOT-23 package
• Power-on reset to mid-scale in external reference mode
• SPI/MICROWIRE compatible 3-wire serial interface with 50MHz clock rate

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel configuration as defined in the manufacturer's documentation. Confirm that the LX code corresponds to the external reference power-on reset mode and the L designation specifies the 2.5V full-scale internal reference. Ensure compatibility with the required automotive temperature range and supply voltage constraints before procurement.

Selection Notes

Select this component when a dual-channel DAC with an integrated low-drift reference is required for space-constrained designs. The LX variant is appropriate if the system requires the outputs to initialize to mid-scale during power-up while utilizing an external reference source. Verify that the 2.7V to 5.5V supply range aligns with the target application's power architecture and that the 12-bit resolution meets the linearity requirements.

Part Context

This part belongs to the LTC2632 family of dual voltage-output DACs. Variants are distinguished by resolution (8, 10, or 12 bits), accuracy grade (standard or A-grade), full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The HTS8 designation identifies the high-temperature automotive grade and the TSOT-23 package type.

Replacement Considerations

Direct substitutes within the same family include LTC2632ACTS8-LX12#TRMPBF for commercial temperature grades or LTC2632HTS8-LI12#TRMPBF for different power-on reset behaviors. Cross-family replacements require verification of pinout compatibility, reference voltage matching, and interface signal levels.