STHVDAC-256MTGF3

ADCs/DACs - Special Purpose Overview

The STHVDAC-256MTGF3 is a high-voltage digital-to-analog converter (DAC) manufactured by STMicroelectronics, designed specifically for controlling antenna tuning circuits. It operates within a supply voltage range of 1.65 V to 5 V and draws an operating supply current of 1.1 mA. The device supports input frequencies between 13 MHz and 26 MHz and functions reliably in temperatures ranging from -30 °C to +85 °C. Packaged in a FlipChip-20 format with SMD/SMT mounting style, it integrates TURBO and GLIDE features to manage wide tuning bias voltages for BST capacitors.

ADCs/DACs - Special Purpose Feature Summary

• High-voltage DAC architecture optimized for BST capacitor control in RF applications
• Integrated TURBO & GLIDE functionality for precise antenna tuning bias management
• Low power consumption with 1.1 mA operating supply current
• Wide operating temperature range from -30 °C to +85 °C

ADCs/DACs - Special Purpose Applications

• RF wireless communication systems requiring dynamic antenna impedance matching
• Mobile device antenna tuning circuits utilizing BST varactors
• IoT devices needing efficient RF front-end bias control

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific suffix 'F3' matches project requirements, as packaging variations such as Cut Tape, Reel, or MouseReel may apply. Ensure compliance with RoHS directives and check for any end-of-life notices or production changes prior to finalizing procurement orders.

ADCs/DACs - Special Purpose Selection Notes

Select this component when designing RF front-ends that require high-voltage bias generation for BST-based tuners. Compare against the STHVDAC-253MTGF3 if a 16-pin package or different voltage thresholds are preferred. Ensure the system design accommodates the 1.65 V minimum supply voltage and the FlipChip-20 thermal dissipation characteristics for reliable operation at maximum ambient temperatures.

ADCs/DACs - Special Purpose Part Context

This part belongs to the STHVDAC series of high-voltage DACs from STMicroelectronics. These controllers are specialized for managing the bias voltages of Barium Strontium Titanate (BST) capacitors used in modern antenna tuning modules. The series provides integrated solutions for RF impedance matching, distinguishing itself from general-purpose DACs by its specific output voltage ranges and tuning algorithms tailored for RF applications.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult STMicroelectronics technical support for qualified alternatives or cross-reference with other members of the STHVDAC family, such as the STHVDAC-253MTGF3, while verifying pin compatibility and electrical specifications.