LTC2632HTS8-LX8#TRPBF

Overview

The LTC2632HTS8-LX8#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 10ppm/°C reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device utilizes a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key specifications include ±0.5LSB maximum INL, rail-to-rail output buffers, and power-on reset functionality that sets outputs to mid-scale in external reference mode.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V full-scale reference
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to mid-scale in external reference mode
• Rail-to-rail output buffers with guaranteed monotonicity

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the tape and reel packaging configuration required for the production line. Confirm that the LX designation matches the intended power-on reset behavior for external reference applications. Ensure compatibility with the target system's supply voltage range of 2.7V to 5.5V.

Selection Notes

Select this component when a compact dual-channel solution with low integral nonlinearity is required. The LX variant is specifically suited for systems where the DAC must initialize to mid-scale upon power-up when using an external reference voltage. Consider the 8-bit resolution if higher precision is not necessary to reduce cost and complexity.

Part Context

This part belongs to the LTC2632 family, which offers various combinations of resolution (8, 10, or 12 bits), accuracy grades, and power-on reset options. The HTS8 suffix indicates the automotive temperature grade (-40°C to 125°C) and the TSOT-23 package type. Other variants include different full-scale voltages and reset behaviors to suit diverse application requirements.

Replacement Considerations

Direct substitutes within the same family include other LTC2632 variants with matching resolution and package. Verify that alternative parts support the required power-on reset state and operate within the specified voltage range. Cross-model replacements may require interface timing adjustments.