LTC2633HTS8-HZ12#TRPBF

Overview

The LTC2633HTS8-HZ12#TRPBF 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, a settling time of 4.7µs at 5V, and a supply current of 0.5mA at 3V. It guarantees monotonicity over the –40°C to 125°C temperature range and incorporates a power-on reset circuit that defaults outputs to zero-scale.

Feature Summary

• Dual 12-bit resolution with rail-to-rail output buffers
• Integrated 4.096V precision reference with 10ppm/°C drift
• I²C interface with selectable internal or external reference
• Power-on reset to zero-scale for consistent initialization

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the 2,500-piece tape and reel packaging format as defined in the manufacturer's order information. Confirm that the H-grade designation matches the required automotive temperature range of –40°C to 125°C for the target application environment.

Selection Notes

Select this part when a dual-channel DAC with high accuracy (±1.5 LSB INL) and low power consumption is required. Ensure the system supply voltage supports the 4.5V to 5.5V operating range mandated by the H-series full-scale voltage. Consider the zero-scale power-on reset feature if downstream circuits must remain inactive during startup.

Part Context

This component belongs to the LTC2633 family of dual DACs, which offers various combinations of resolution (8-, 10-, 12-bit), accuracy grades (standard vs. A-grade), and power-on reset options. The HTS8 suffix indicates the H-grade temperature rating and the TSOT-23 package type, distinguishing it from commercial grade or different package variants within the same product line.

Replacement Considerations

Direct substitutes within the same family include LTC2633HTS8-HI12#TRPBF (mid-scale reset) or LTC2633HTS8-LZ12#TRPBF (2.5V full-scale). Cross-family replacements require verification of pin compatibility and I²C register mapping.