LTC2632AHTS8-HZ12

Overview

The LTC2632AHTS8-HZ12#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 supporting clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity (INL) error of ±1.5LSB, rail-to-rail output buffers, and guaranteed monotonicity over the specified range.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V reference (10ppm/°C)
• Maximum INL error of ±1.5LSB
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to zero-scale in internal reference mode

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging option through designated sales channels. Confirm that the H-grade designation aligns with the required 4.5V to 5.5V supply voltage range and automotive temperature specifications (-40°C to 125°C). Ensure compatibility with the zero-scale power-on reset configuration before procurement.

Selection Notes

Select this part for applications requiring dual 12-bit outputs with high accuracy (±1.5LSB INL) and low drift. The H-grade variant necessitates a minimum supply voltage of 4.5V, distinguishing it from the L-grade which supports 2.7V. The 'Z' suffix ensures the outputs initialize to zero-scale upon power-up, which is critical for systems sensitive to initial DAC states. Verify interface timing requirements against the 50MHz SCK limit.

Part Context

This component belongs to the LTC2632 family of dual voltage-output DACs. The 'A' denotes the electrical grade with ±1.5LSB maximum INL. The 'H' specifies the 4.096V full-scale internal reference and 4.5V-5.5V operating range. The 'Z' indicates a power-on reset to zero-scale. The 'TS8' identifies the 8-lead TSOT-23 package type.

Replacement Considerations

Direct substitutes within the same family include LTC2632AHTS8-HI12 (mid-scale reset) or LTC2632AHTS8-LZ12 (2.5V FSR, lower voltage operation). Cross-family replacements require matching resolution, interface type, and package constraints.