DAC7558IRHBTG4

Digital To Analog Converters Overview

The DAC7558IRHBTG4 is an octal, 12-bit digital-to-analog converter manufactured by Texas Instruments. It features a resistor-string architecture with buffered voltage outputs capable of rail-to-rail swing. The device operates on a single 2.7V to 5.5V supply and includes a high-speed 50MHz serial interface compatible with standard SPI, QSPI, Microwire, and DSP protocols. Key electrical specifications include a maximum settling time of 5µs, low glitch energy of 0.1nVs·s, and ultra-low crosstalk of -100dB. It supports asynchronous clear, binary and two's complement input codes, and flexible power-down modes within a -40°C to +105°C industrial temperature range.

Digital To Analog Converters Feature Summary

• Octal configuration providing eight independent 12-bit channels in a compact package
• Ultra-low glitch energy and crosstalk ensuring signal integrity across all channels
• Flexible serial interface supporting multiple communication protocols at speeds up to 50MHz
• Rail-to-rail buffered outputs driving loads up to 2kΩ parallel 1000pF

Digital To Analog Converters Applications

• Industrial process control systems requiring multi-channel analog output
• Programmable logic controller (PLC) analog output modules
• Data acquisition systems utilizing daisy-chain architectures
• Battery-powered instrumentation benefiting from low power consumption

Digital To Analog Converters Procurement Notes

Verify the suffix G4 indicates RoHS compliance and lead-free construction when sourcing. Confirm the IRHBT designation corresponds to the specific 32-pin QFN package variant. Ensure the ordering part number matches the required temperature grade for the intended operating environment. Cross-reference datasheet revisions to confirm pinout consistency during procurement.

Digital To Analog Converters Selection Notes

Select this component when eight isolated analog outputs are required within a single integrated circuit. The 12-bit resolution balances precision with speed for general-purpose applications. Consider the 50MHz interface speed if system throughput requirements exceed lower-frequency alternatives. Evaluate the 2.7V to 5.5V supply range against available system power rails.

Digital To Analog Converters Part Context

This part belongs to the DAC755x family of ultralow glitch voltage-output digital-to-analog converters. It shares architectural similarities with the dual-channel DAC7553 and quad-channel DAC7554 variants. The IRHBT package type denotes a 5mm x 5mm QFN footprint suitable for space-constrained printed circuit board designs.

Digital To Analog Converters Replacement Considerations

Direct functional substitutes within the same family include the DAC7554 for four-channel applications or the DAC7553 for dual-channel requirements. Verify pin compatibility and software register mapping before replacing existing designs with these variants.