LTC2632ACTS8-HI12#TRMPBF

Overview

The LTC2632ACTS8-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 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 ±1.5LSB, a settling time of 4.9µs at 5V, and rail-to-rail output buffers. The part includes a power-on reset circuit configured to set outputs to mid-scale upon initialization.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V reference (±10ppm/°C)
• Maximum INL error of ±1.5LSB for high accuracy
• SPI/MICROWIRE compatible 3-wire serial interface (up to 50MHz)
• 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 #TRMPBF indicates a 500-piece tape and reel packaging configuration. Confirm that the HI designation requires a supply voltage range of 4.5V to 5.5V, distinct from the LI variant which supports lower voltages. Ensure the A grade specification for ±1.5LSB INL matches the design requirements.

Selection Notes

Select this component when a dual-channel DAC with a fixed 4.096V internal reference is required. The HI suffix dictates a minimum operating voltage of 4.5V. For applications requiring zero-scale power-on reset, consider the HZ suffix instead. Verify that the 8-lead TSOT-23 package footprint fits the PCB layout constraints.

Part Context

This part belongs to the LTC2632 family of dual DACs. Variations exist based on resolution (8, 10, or 12-bit), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (Zero, Mid-Scale Internal, or Mid-Scale External). The ACTS8 designation specifies the Automotive-grade temperature range (-40°C to 125°C) and the TSOT-23 package type.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.