LTC2632ACTS8-HI12#TRPBF

Overview

The LTC2632ACTS8-HI12#TRPBF 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 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 that are guaranteed monotonic.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C drift)
• Maximum INL error of ±1.5LSB for high accuracy applications
• SPI/MICROWIRE compatible 3-wire serial interface with 50MHz clock rate
• Power-on reset configured 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 quantity if required, whereas standard #TRPBF denotes 2,500 pieces. Confirm the H-grade designation ensures operation within the 4.5V to 5.5V supply range and automotive temperature specifications. Ensure compatibility with the 8-lead TSOT-23 footprint during PCB layout.

Selection Notes

Select this part when a 4.096V full-scale output is required with an internal reference. The HI suffix specifies power-on reset to mid-scale in internal reference mode; choose LZ for zero-scale reset or LX for external reference mid-scale reset. Verify that the system supply voltage remains between 4.5V and 5.5V, as lower voltages are not supported by the H-series variants.

Part Context

This component belongs to the LTC2632 family of dual DACs available in 12-, 10-, and 8-bit resolutions. The 'A' grade denotes superior linearity performance with ±1.5LSB max INL compared to the standard ±2.5LSB. The 'H' variant distinguishes itself from the 'L' series by requiring a higher minimum supply voltage (4.5V vs 2.7V) to support its 4.096V internal reference output.

Replacement Considerations

Direct pin-compatible substitutes within the same package include other LTC2632 variants such as LTC2632ACTS8-LI12#TRPBF or LTC2632ACTS8-HZ12#TRPBF, provided the supply voltage and power-on reset requirements align with the application design.