DAC128S085CISQX/NOPB

Digital To Analog Converters Overview

The DAC128S085CISQX/NOPB is an octal, 12-bit digital-to-analog converter manufactured by Texas Instruments. It features a resistor string architecture with eight independent channels and buffered voltage outputs. The device supports serial interfaces including SPI, QSPI, Microwire, and DSP modes. It operates on analog and digital supply voltages ranging from 2.7 V to 5.5 V. Key electrical parameters include a settling time of 8.5 µs, a typical operating current of 650 µA, and power consumption of 1.95 mW. Linearity specifications are defined by a gain error of 1% FSR, INL of ±2 LSB, and DNL of 0.15 LSB. It functions within a temperature range of -40°C to +125°C and is housed in a WQFN-16 package.

Digital To Analog Converters Feature Summary

• Integrates eight independent 12-bit DAC channels within a single compact surface-mount package.
• Supports multiple high-speed serial communication protocols for flexible microcontroller interfacing.
• Designed for low-power applications with optimized current consumption and rail-to-rail output capability.

Digital To Analog Converters Applications

• Industrial process control systems requiring multi-channel signal generation
• Portable instrumentation and battery-operated test equipment
• Data acquisition systems with spatial constraints

Digital To Analog Converters Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and functional equivalence. Ensure that any ordering suffixes do not alter the electrical characteristics or package dimensions required for the target design. Cross-reference the component marking with the datasheet to prevent counterfeit substitution.

Digital To Analog Converters Selection Notes

Select this component when a system requires eight simultaneous analog outputs with moderate precision. The external reference requirement allows designers to tailor the output voltage swing to specific application needs. Consider the WQFN-16 footprint during PCB layout to ensure adequate thermal dissipation and soldering reliability.

Digital To Analog Converters Part Context

This part belongs to the DAC128S085 family of octal digital-to-analog converters. It shares core architectural similarities with variants such as the DAC128S085CIMT and DAC128S085CISQ, differing primarily in packaging style and industrial temperature rating specifications.

Digital To Analog Converters Replacement Considerations

The DAC128S085CISQ is a direct pin-compatible alternative within the same series. Verify that the substitute matches the required operating temperature range and interface timing specifications before implementation.

Digital To Analog Converters FAQ

What is the maximum clock rate for the serial interface?

The datasheet specifies support for standard SPI, QSPI, Microwire, and DSP interfaces, though specific maximum clock frequencies are detailed in the timing diagrams of the official technical documentation.

Does the device include an internal voltage reference?

No, the DAC128S085CISQX/NOPB requires an external voltage reference input to define the full-scale output range.

What is the output configuration of the DAC channels?

The device provides buffered voltage outputs capable of rail-to-rail operation across the supply voltage range.