LTC2632HTS8-LZ10

Overview

The LTC2632HTS8-LZ10 is a dual 10-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 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 a power-on reset circuit that initializes outputs to zero-scale in internal reference mode. The part is guaranteed monotonic over the automotive temperature range of –40°C to 125°C.

Feature Summary

• Dual 10-bit DACs with integrated 2.5V full-scale reference (10ppm/°C)
• Power-on reset to zero-scale in internal reference mode
• Automotive temperature grade: –40°C to 125°C
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock rate

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix HTS8 against official documentation to confirm package type and tape/reel specifications. Confirm the LZ10 designation corresponds to the 10-bit resolution and zero-scale power-on reset configuration. Ensure compatibility with the required automotive temperature range and supply voltage specifications for the target application.

Selection Notes

Select this component when a dual-channel DAC with integrated low-drift reference is required for space-constrained designs. The LTS8 package offers an 8-lead TSOT-23 form factor suitable for surface mount applications. Choose the LZ variant if system initialization requires outputs to default to zero-scale upon power-up. Verify that the 2.7V to 5.5V supply range meets the system power requirements.

Part Context

The LTC2632 family comprises dual 12-, 10-, and 8-bit voltage-output DACs with integrated references. Variants are distinguished by resolution (12, 10, or 8 bits), full-scale voltage (2.5V for L-series, 4.096V for H-series), and power-on reset behavior (I for mid-scale, Z for zero-scale). The HTS8-LZ10 specifically denotes the H-grade automotive temperature range, TSOT-23 package, zero-scale reset, and 10-bit resolution.

Replacement Considerations

Publicly confirmed substitute part numbers for the LTC2632HTS8-LZ10 are not available in the provided source material. Cross-referencing with other members of the LTC2632 family, such as the LTC2632HTS8-LZ12 or LTC2632HTS8-LZ8, may be necessary if resolution differences are acceptable.