LTC2633HTS8-LZ10

Overview

The LTC2633HTS8-LZ10 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 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 4.0µs at 3V (4.7µs at 5V), and a power-on reset function that initializes outputs to zero-scale.

Feature Summary

• Dual 10-bit DAC channels with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers guaranteed monotonic over –40°C to 125°C
• I²C interface with selectable standard (100kHz) or fast (400kHz) clock rates
• Power-on reset circuitry configured for zero-scale initialization

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type, temperature grade, and power-on reset configuration. Ensure the supply voltage range matches the component's operational requirements before procurement.

Selection Notes

Select this component when a dual-channel DAC with low drift and I²C connectivity is required in a compact TSOT-23 package. The H-grade variant supports a wider operating temperature range and higher supply voltage compared to the C-grade. Verify that the system power supply remains within the 4.5V to 5.5V range for specified performance.

Part Context

This part belongs to the LTC2633 family of dual DACs, which also includes 8-bit and 12-bit resolution variants. The family shares common architectural features such as the I²C interface and integrated reference options, differing primarily in resolution, accuracy grades, and power-on reset behaviors.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-LI10 (mid-scale reset) or LTC2633HTS8-HZ10 (higher full-scale voltage). Cross-family replacements require verification of pin compatibility and software register mapping.