DAC8580IPW Equivalent & Substitute Parts

Part Overview

The DAC8580IPW is a 16-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring voltage output buffering. This device features a single D/A converter with SPI data interface and external reference capability. The DAC8580IPW is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Finding equivalent or substitute parts is necessary for applications requiring active product support, improved availability, or design flexibility while maintaining core functional requirements.

Substiute Parts

DAC8580IPW

Texas InstrumentsIn Stock: 65992DAC8580IPW Datasheet

Current PartRFQ

DAC8811ICDGKT

Texas InstrumentsIn Stock: 1261DAC8811ICDGKT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC8580IPW is based on the following critical parameters that must align for functional compatibility:

• Resolution: 16-bit digital-to-analog conversion capability
• Data Interface: SPI protocol support for digital communication
• Reference Type: External reference input requirement
• Operating Temperature: -40°C to 85°C industrial range
• Manufacturer: Texas Instruments product ecosystem
• Compliance: ROHS3 and REACH compliance status

The DAC8811ICDGKT qualifies as a substitute based on matching resolution, data interface, reference type, operating temperature range, and compliance certifications. However, critical differences exist in output type, package form factor, and electrical specifications that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The DAC8811ICDGKT is an active product from Texas Instruments and represents a viable substitute for the DAC8580IPW in applications where the following conditions are met:

Compatibility Factors:

• Both devices maintain 16-bit resolution and SPI interface compatibility
• Operating temperature range alignment (-40°C to 85°C) supports industrial applications
• Both devices comply with ROHS3 and REACH requirements
• DAC8811ICDGKT offers improved product lifecycle status (Active vs. Not For New Designs)

Critical Design Considerations:

• Output type differs: DAC8580IPW provides buffered voltage output; DAC8811ICDGKT provides unbuffered current output. Circuit redesign may be required to accommodate current-to-voltage conversion.
• Package footprint differs: DAC8580IPW uses 16-TSSOP; DAC8811ICDGKT uses 8-VSSOP. PCB layout modifications are necessary.
• Supply voltage ranges differ: DAC8580IPW accepts ±4V to 6V analog supply; DAC8811ICDGKT requires 2.7V to 5.5V. Power supply architecture may require adjustment.
• Linearity specifications differ: DAC8580IPW specifies ±0.25 LSB DNL; DAC8811ICDGKT specifies ±1 LSB. Application accuracy requirements must be verified.

Selection of DAC8811ICDGKT is appropriate for new designs or redesigns where circuit topology can accommodate current output and reduced package density. For applications requiring direct pin-compatible replacement with buffered voltage output, alternative solutions should be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the DAC8811ICDGKT directly replace the DAC8580IPW without circuit modifications?

A: No. While both devices share 16-bit resolution and SPI interface, the DAC8811ICDGKT outputs unbuffered current whereas the DAC8580IPW outputs buffered voltage. Direct substitution requires external current-to-voltage conversion circuitry. Additionally, package footprints differ (16-TSSOP vs. 8-VSSOP), requiring PCB redesign.

Q: What are the key electrical differences between these devices?

A: The DAC8580IPW operates with ±4V to 6V analog supply and 1.8V to 6V digital supply, while the DAC8811ICDGKT requires 2.7V to 5.5V for both supplies. The DAC8580IPW achieves ±0.25 LSB DNL linearity; the DAC8811ICDGKT achieves ±1 LSB. The DAC8811ICDGKT offers faster settling time (500ns typical vs. 650ns).

Q: Why is the DAC8580IPW marked "Not For New Designs"?

A: This classification indicates the device has been superseded in Texas Instruments' product portfolio. The DAC8811ICDGKT represents an active alternative with ongoing manufacturer support, improved availability, and continued compliance updates.

Q: Are both devices RoHS and REACH compliant?

A: Yes. Both the DAC8580IPW and DAC8811ICDGKT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging options are available for each device?

A: The DAC8580IPW is supplied in 16-TSSOP packaging (0.173" width, 4.40mm). The DAC8811ICDGKT is available in Cut Tape (CT) and Digi-Reel packaging with 8-VSSOP form factor (0.118" width, 3.00mm).