LTC2633HTS8-HI10

Overview

The LTC2633HTS8-HI10 is a dual-channel, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision internal reference with a temperature coefficient of 10ppm/°C and operates on a single supply ranging from 4.5V to 5.5V. The device features rail-to-rail output buffers and communicates via a standard 2-wire I²C serial interface supporting clock rates up to 400kHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a typical supply current of 0.5mA at 5V, and guaranteed monotonicity across the full operating temperature range of –40°C to +125°C.

Feature Summary

• Dual 10-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ±1 LSB maximum INL error
• I²C-compatible serial interface with 400kHz fast mode support
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature grade, and power-on reset behavior. Ensure the supply voltage meets the minimum requirement of 4.5V for the H-grade variant. Confirm RoHS compliance status through the supplier's certification documents prior to integration.

Selection Notes

Select this component when a dual-channel DAC with high accuracy and low drift is required in a compact 8-lead TSOT-23 package. The H-grade designation ensures operation within the automotive temperature range of –40°C to +125°C. Verify that the system supply voltage supports the 4.5V to 5.5V operating range required for the 4.096V full-scale output configuration.

Part Context

This part belongs to the LTC2633 family of dual DACs, which offers various resolution options including 8-bit, 10-bit, and 12-bit configurations. The family shares a common pinout and I²C interface architecture but differs in linearity specifications and power-on reset behaviors based on the specific suffix codes. The HI10 designation specifically denotes the 10-bit resolution with internal reference mid-scale reset.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-LI10 or LTC2633HTS8-HZ10, depending on whether zero-scale or external reference reset behavior is preferred. Cross-family alternatives may require verification of pin compatibility and I²C address mapping.