LTC2632AHTS8-HI12#TRMPBF

Overview

The LTC2632AHTS8-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 supports 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 is guaranteed monotonic over the automotive temperature range of –40°C to +125°C.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V reference (10ppm/°C drift)
• Automotive grade: Guaranteed monotonic operation from –40°C to +125°C
• Maximum INL error of ±1.5LSB for high accuracy applications
• 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz

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 as defined in the manufacturer's documentation. Confirm that the H-grade designation aligns with the required 4.5V to 5.5V supply voltage range and automotive temperature specifications for the target application environment.

Selection Notes

Select this component when a dual-channel DAC with high accuracy (±1.5LSB INL) and low drift is required in a compact TSOT-23 package. Ensure the system power supply remains within the 4.5V to 5.5V range specified for the HI variant. Consider the power-on reset behavior, which defaults to mid-scale in internal reference mode for this specific code, against system initialization requirements.

Part Context

This part belongs to the LTC2632 family of dual DACs, which offers various resolution options (8-, 10-, and 12-bit) and full-scale voltage configurations (2.5V or 4.096V). The 'A' designation specifies the higher accuracy grade with ±1.5LSB maximum INL, while 'H' denotes the automotive temperature range and 4.096V internal reference capability. The 'TS8' indicates the 8-lead plastic TSOT-23 package type.

Replacement Considerations

Direct substitutes within the same family include the LTC2632ACTS8-LI12#TRMPBF for 2.5V full-scale applications or the LTC2632ACTS8-HZ12#TRMPBF if zero-scale power-on reset is preferred instead of mid-scale. Verify pin compatibility and supply voltage constraints when cross-referencing other models.