DAC7558IRHBT

Digital To Analog Converters Overview

The DAC7558IRHBT is an octal, 12-bit digital-to-analog converter manufactured by Texas Instruments. It features eight voltage-output channels with a resistor-string architecture and integrated output buffers. The device supports multiple serial interfaces including SPI, Microwire, QSPI, DSP, and 3-wire modes. It operates on analog and digital supply voltages ranging from 2.7 V to 5.5 V. Key electrical specifications include a settling time of 5 µs, a sampling rate of 500 kS/s per channel, and low power consumption of 1.1 mA. Non-linearity performance is specified at +/- 0.35 LSB for INL and +/- 0.08 LSB for DNL. The component is housed in a VQFN-32 package and functions within a temperature range of -40°C to +105°C.

Digital To Analog Converters Feature Summary

• Octal configuration providing eight independent 12-bit voltage outputs
• Integrated output buffers eliminate the need for external amplification
• Flexible serial interface compatibility with standard communication protocols
• Low glitch impulse characteristic suitable for precision applications

Digital To Analog Converters Applications

• Portable instrumentation systems requiring multi-channel signal generation
• Battery-powered test and measurement equipment
• Process control loops with multiple analog output requirements
• Programmable gain amplifier biasing networks

Digital To Analog Converters Procurement Notes

Verify the specific suffix IRHBT to confirm the VQFN-32 package type and industrial temperature grade (-40°C to +105°C). Ensure that the ordering information matches the required reel or cut tape packaging format. Cross-reference the manufacturer part number against official Texas Instruments documentation to validate authenticity and revision status before procurement.

Digital To Analog Converters Selection Notes

Select this component when eight simultaneous 12-bit voltage outputs are required in a compact form factor. The 2.7 V to 5.5 V supply range allows compatibility with various single-supply logic levels. Consider the 500 kS/s update rate and 5 µs settling time for bandwidth requirements. The VQFN-32 package is suitable for space-constrained printed circuit board designs.

Digital To Analog Converters Part Context

This part belongs to the DAC7558 series of octal DACs from Texas Instruments. It shares architectural similarities with other members of the family but is distinguished by its specific 12-bit resolution and buffer integration. The IRHBT designation indicates the specific thermal and mechanical characteristics associated with the industrial grade VQFN package variant.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible substitutes within the same family include the DAC7551, DAC7552, DAC7553, and DAC7554, which offer varying channel counts (1, 2, 4, and 8 respectively) while maintaining similar interface and electrical characteristics.