LTC2632HTS8-HZ8#TRMPBF

Overview

The LTC2632HTS8-HZ8#TRMPBF 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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, a settling time of 4.9µs at 5V, and a supply current of 0.5mA at 5V with the internal reference active.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C)
• Automotive temperature grade (-40°C to +125°C)
• Power-on reset to zero-scale in internal reference mode
• Rail-to-rail output buffers with guaranteed monotonicity

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel configuration. Confirm that the H-grade designation aligns with the required automotive temperature range of -40°C to +125°C and the 4.5V to 5.5V supply requirement for the 4.096V full-scale output.

Selection Notes

Select this part when a dual-channel DAC with high accuracy and low drift is required in a compact TSOT-23 package. The HZ suffix ensures the outputs initialize to zero upon power-up, which is critical for protecting downstream circuits during system startup. Ensure the system supply voltage remains within the 4.5V to 5.5V range specified for the H-series devices.

Part Context

This component belongs to the LTC2632 family of dual DACs. Variations exist based on resolution (8, 10, or 12-bit), 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-HZ8 variant specifically combines the H-series voltage range, Z-series reset logic, and 12-bit resolution.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing should focus on other members of the LTC2632 family or similar dual SPI DACs from Analog Devices with matching pinouts and electrical characteristics.