LTC2633ACTS8-HI12#TRPBF

Overview

The LTC2633ACTS8-HI12#TRPBF is a dual 12-bit voltage-output digital-to-analog converter housed in an 8-lead TSOT-23 package. It features an integrated reference providing a 4.096V full-scale output, requiring a supply voltage between 4.5V and 5.5V. The device communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity of ±1.5LSB, rail-to-rail output buffers, and guaranteed monotonicity over the –40°C to 125°C temperature range. Supply current is typically 0.5mA at 5V with internal reference.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V reference and ±10ppm/°C drift
• Maximum INL error of ±1.5LSB for high precision applications
• Rail-to-rail output buffers with guaranteed monotonic operation
• I2C interface with selectable power-on reset states

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining circuits
• Portable equipment requiring low power consumption
• Automotive electronic modules

Procurement Notes

Verify the ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm the HI12 designation matches the required 4.096V full-scale voltage and 12-bit resolution. Ensure the ACTS8 package type aligns with PCB layout constraints. Check that the H-grade temperature rating suits the operational environment.

Selection Notes

Select this part when a 4.096V full-scale range is required, as opposed to the 2.5V option found in the L-series. The 'A' grade ensures tighter linearity specifications compared to standard grades. Verify that the system supply voltage remains within the 4.5V to 5.5V window for specified performance. Consider the external reference mode if a different full-scale voltage is needed.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes 10-bit and 8-bit variants. The HI12 suffix specifically denotes the 12-bit resolution with the higher voltage internal reference configuration. Other family members offer different reset behaviors or lower voltage ranges, but share the same pinout and interface protocol.

Replacement Considerations

Direct substitutes within the same family include LTC2633AHCTS8-HI12#TRPBF for commercial temperature range or LTC2633ACTS8-HZ12#TRPBF for zero-scale power-on reset. Cross-family replacements require verification of pin compatibility and I2C address settings.