LTC2632HTS8-HI8#TRPBF

Overview

The LTC2632HTS8-HI8#TRPBF is a dual 8-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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, rail-to-rail output buffers, and guaranteed monotonicity across the operating range.

Feature Summary

• Dual 8-bit DACs with integrated 4.096V precision reference
• SPI/MICROWIRE compatible 3-wire serial interface
• Rail-to-rail output buffers with guaranteed monotonicity
• Power-on reset to mid-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel packaging configuration. Confirm that the HI designation requires a supply voltage between 4.5V and 5.5V due to the 4.096V internal reference. Ensure the HTS8 package type matches the target PCB footprint requirements for the 8-lead TSOT-23 form factor.

Selection Notes

Select this component when a dual-channel DAC with an integrated high-accuracy reference is required in a compact package. The HI variant is suitable for applications needing a 4.096V full-scale output, provided the system supply voltage supports the 4.5V minimum requirement. Consider the 8-bit resolution if lower data throughput is acceptable compared to the 10-bit or 12-bit variants.

Part Context

This part belongs to the LTC2632 family of dual DACs, which offers various combinations of resolution (8, 10, or 12 bits), power-on reset behaviors, and full-scale voltages (2.5V or 4.096V). The HI suffix specifically denotes the 4.096V full-scale option with mid-scale power-on reset, while the H grade indicates the automotive temperature range of –40°C to 125°C.

Replacement Considerations

Direct substitutes within the same family include LTC2632HTS8-HI10#TRPBF and LTC2632HTS8-HI12#TRPBF for higher resolution needs. For 2.5V full-scale applications, consider the LTC2632HTS8-LI8#TRPBF variant. Verify pin compatibility and electrical specifications before substitution.