LTC2632HTS8-LZ12#TRMPBF

Overview

The LTC2632HTS8-LZ12#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 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 communicates via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. It includes rail-to-rail output buffers, guaranteed monotonicity, and a power-on reset function that initializes outputs to zero-scale.

Feature Summary

• Dual 12-bit DACs with integrated 2.5V precision reference (10ppm/°C)
• Rail-to-rail output buffers with ±1.5LSB maximum INL error
• Power-on reset to zero-scale for consistent system initialization
• 3-wire serial interface with SCK frequencies up to 50MHz

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration. 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 required supply voltage ranges and interface logic levels before procurement.

Selection Notes

Select this component when a dual-channel, high-accuracy DAC with an internal reference is required in a compact footprint. The LZ12 suffix specifies a 12-bit resolution with zero-scale power-on reset behavior. Choose the H-grade variant if operation within the -40°C to 125°C automotive temperature range is necessary, distinguishing it from the C-grade commercial version.

Part Context

This part belongs to the LTC2632 family of dual DACs, which offers various combinations of resolution (8, 10, or 12 bits), full-scale voltages (2.5V or 4.096V), and power-on reset options. The HTS8-LZ12 configuration specifically targets applications requiring automotive-grade reliability, precise zero-initialization, and low-power operation in space-constrained designs.

Replacement Considerations

Direct substitutes within the same family include LTC2632ACTS8-LZ12#TRMPBF for commercial temperature range or LTC2632HTS8-HZ12#TRMPBF for 4.096V full-scale output. Verify pinout compatibility and electrical specifications such as settling time and noise performance when cross-referencing with other dual DAC models.