LTC2632HTS8-LZ10#TRPBF

Overview

The LTC2632HTS8-LZ10#TRPBF is a dual 10-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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V and utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. It includes rail-to-rail output buffers, guaranteed monotonicity, and a power-on reset function that clears outputs to zero-scale in internal reference mode. The component is housed in an 8-lead TSOT-23 package.

Feature Summary

• Dual 10-bit DACs with integrated 2.5V full-scale reference
• Low drift reference with ±10ppm/°C temperature coefficient
• Power-on reset to zero-scale for consistent initialization
• 3-wire SPI/MICROWIRE interface supporting up to 50MHz clock

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel packaging format containing 2,500 pieces. Confirm the HTS8 designation corresponds to the Automotive temperature grade (-40°C to 125°C) and TSOT-23 package type as defined in the manufacturer's selection guide. Ensure compatibility with system power supply requirements of 2.7V to 5.5V.

Selection Notes

Select this part when a dual-channel DAC with zero-scale power-up behavior is required. The 10-bit resolution offers a balance between accuracy and speed, with a typical settling time of 3.9µs at 5V. Choose the LZ variant specifically if the application demands outputs to initialize at zero volts upon power-up rather than mid-scale. Verify that the 2.5V internal reference range meets the system's output voltage swing needs.

Part Context

This component belongs to the LTC2632 family of dual DACs, which also includes 8-bit and 12-bit variants. The 'H' suffix denotes the automotive temperature grade (-40°C to 125°C), while 'L' indicates the 2.5V full-scale internal reference. The 'Z' suffix specifies the power-on reset behavior to zero-scale. Other family members include the LTC2632ACTS8-LI12#TRMPBF and LTC2632ACTS8-HI12#TRMPBF, which differ in resolution, reset behavior, or temperature grade.

Replacement Considerations

Direct substitutes within the same family include the LTC2632HTS8-LZ12#TRPBF (12-bit resolution) or LTC2632HTS8-LZ8#TRPBF (8-bit resolution). For different reset behaviors, consider the LTC2632HTS8-LI10#TRPBF (mid-scale reset). Cross-family replacements require verification of pinout compatibility and electrical specifications.