LTC2633ACTS8-HI12#TRMPBF

Overview

The LTC2633ACTS8-HI12#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 operates on a single 4.5V to 5.5V supply. The device communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5 LSB, a settling time of 4.7µs at 5V, and a supply current of 0.5mA at 5V. It includes a power-on reset circuit configured to initialize outputs to mid-scale.

Feature Summary

• Dual 12-bit DACs with rail-to-rail output buffers and guaranteed monotonicity over the operating temperature range.
• Integrated high-accuracy reference providing 4.096V full-scale output with 10ppm/°C drift.
• Maximum INL error of ±1.5 LSB for the A-grade device.
• Power-on reset function set to mid-scale in internal reference mode.

Applications

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

Procurement Notes

Verify the #TRMPBF suffix indicates a 500-unit tape and reel packaging configuration, distinct from the standard 2,500-unit reel. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the HI12 code aligns with the required mid-scale power-on reset behavior for internal reference applications.

Selection Notes

Select this part when a dual-channel 12-bit DAC with a 4.096V internal reference is required in a compact TSOT-23 package. The A-grade specification ensures tighter linearity performance (±1.5 LSB INL) compared to standard grades. Verify that the system supply voltage remains within the 4.5V to 5.5V range specified for the H-grade variant.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also offers 10-bit and 8-bit resolutions. Variants are available with 2.5V or 4.096V internal references and different power-on reset configurations. The ACTS8 suffix denotes the Automotive temperature grade and TSOT-23 package type.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Cross-referencing requires matching the 12-bit resolution, 4.096V full-scale output, I²C interface, and TSOT-23 package constraints.