LTC2632HTS8-LZ8#TRMPBF

Overview

The LTC2632HTS8-LZ8#TRMPBF is a dual 8-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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, rail-to-rail output buffers, and guaranteed monotonicity over the specified temperature range.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V full-scale reference
• Low drift reference with 10ppm/°C temperature coefficient
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to zero-scale in internal reference mode

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. Confirm that 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 for the LTC2632-H series if applicable, though the LZ8 suffix typically aligns with the 2.7V-5.5V operating range.

Selection Notes

Select this component when a dual-channel, low-pin-count DAC with an integrated reference is required for space-constrained designs. The 8-bit resolution offers a balance between cost and performance for applications not requiring high precision. The zero-scale power-on reset feature ensures safe initialization for downstream circuits sensitive to nonzero outputs during power-up. Verify that the 2.5V full-scale output range meets the input requirements of subsequent stages.

Part Context

This part belongs to the LTC2632 family of dual DACs, which includes variants with 10-bit and 12-bit resolutions, different full-scale voltages (2.5V or 4.096V), and various power-on reset behaviors. The 'H' grade denotes the automotive temperature range, while 'L' denotes commercial. The 'Z' suffix specifies the zero-scale reset option, distinguishing it from mid-scale reset variants like 'I' or 'X'.

Replacement Considerations

Direct replacements within the same family include other LTC2632 variants with different resolutions or reset configurations, such as LTC2632HTS8-LZ12#TRMPBF for higher resolution. Cross-family replacements may require evaluation of pin compatibility, interface protocols, and reference accuracy. No public confirmed substitute part numbers outside the LTC2632 family are provided in the source material.