LTC2633HTS8-HZ12#TRMPBF

Overview

The LTC2633HTS8-HZ12#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 4.096V and operates on a single 4.5V to 5.5V supply. The device communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5 LSB, rail-to-rail output buffers, and guaranteed monotonicity over the –40°C to 125°C temperature range. Power-on reset defaults to zero-scale.

Feature Summary

• Dual 12-bit resolution with integrated 4.096V precision reference (±10ppm/°C drift)
• Maximum INL error of ±1.5 LSB for high accuracy
• I²C interface with selectable standard (100kHz) and fast (400kHz) clock rates
• Power-on reset configured to zero-scale for consistent initialization

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive applications

Procurement Notes

Verify the #TRMPBF suffix indicates a 500-unit tape and reel packaging configuration. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the specific ordering code matches the required power-on reset behavior and internal reference voltage settings defined in the manufacturer's selection guide.

Selection Notes

Select this component when a dual-channel DAC with a 4.096V full-scale range is required within a compact 8-lead TSOT-23 footprint. The HZ12 variant is appropriate for designs needing zero-scale power-on reset and high linearity (±1.5 LSB). Verify that the system supply voltage supports the 4.5V to 5.5V operating range specified for the H-series devices.

Part Context

This part belongs to the LTC2633 family of dual DACs, which also includes variants with 2.5V full-scale outputs (L-series) and different power-on reset options (I, X, O codes). The HTS8 suffix denotes the H-grade temperature rating and TSOT-23 package, while Z12 specifies the 12-bit resolution and zero-scale reset function.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-HI12#TRMPBF (mid-scale reset) or LTC2633HTS8-LZ12#TRMPBF (2.5V full-scale). Cross-family alternatives like the LTC2635 offer quad channels but differ in pin count and package size.