AD7111ABR Equivalent & Substitute Parts

Part Overview

The AD7111ABR is a 17-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications. It features a single D/A converter with current output (unbuffered), parallel data interface, and R-2R architecture. The part operates on dual 5V supplies with an operating temperature range of -40°C to 85°C in a 16-SOIC surface mount package.

The AD7111ABR is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance or redesigns.

Substiute Parts

AD7111ABR

Analog Devices Inc.In Stock: 961AD7111ABR Datasheet

Current PartRFQ

AD7111ABRZ

Analog Devices Inc.In Stock: 20638AD7111ABRZ Datasheet

DirectRFQ

ADA4610-1ARZ-RL

Analog Devices Inc.In Stock: 1053ADA4610-1ARZ-RL Datasheet

SimilarRFQ

MC33178DR2G

onsemiIn Stock: 72710MC33178DR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AD7111ABR is evaluated based on the following critical parameters:

Direct Equivalent Criteria:

• Identical resolution (17 bits)
• Single D/A converter configuration
• Current output (unbuffered)
• Parallel data interface
• R-2R architecture
• Dual 5V supply compatibility
• 16-SOIC package
• Operating temperature range compatibility (-40°C ~ 85°C minimum)

Functional Equivalent Criteria:

• Data acquisition category
• Similar resolution capability
• Compatible supply voltage ranges
• Surface mount packaging
• Operating temperature overlap

The AD7111ABRZ qualifies as a direct equivalent, differing only in product status (active vs. obsolete) and RoHS/REACH compliance certifications. The ADA4610-1ARZ-RL and MC33178DR2G are functional alternatives within the Analog Devices and onsemi portfolios, respectively, but operate in the linear amplifier category and do not provide direct DAC functionality.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement:

The AD7111ABRZ is the recommended direct substitute for the AD7111ABR. Both parts maintain identical electrical specifications, package configuration, and operating parameters. The AD7111ABRZ offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the AD7111ABRZ carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for new designs and legacy system updates.

For Functional Alternatives:

The ADA4610-1ARZ-RL and MC33178DR2G are operational amplifiers and do not provide equivalent DAC functionality. These parts are listed as alternatives only in the context of broader signal conditioning or analog processing applications where amplification is required downstream of the AD7111ABR. They are not suitable as direct substitutes for DAC applications requiring 17-bit resolution and parallel digital input.

Frequently Asked Questions (FAQ)

Q: Can the AD7111ABRZ be used as a direct replacement for the AD7111ABR?

A: Yes. The AD7111ABRZ is electrically and mechanically identical to the AD7111ABR. Both parts feature 17-bit resolution, single D/A converter, current output, parallel interface, R-2R architecture, and 16-SOIC packaging. The primary difference is product status: AD7111ABRZ is active with current manufacturing support, while AD7111ABR is obsolete.

Q: Why are ADA4610-1ARZ-RL and MC33178DR2G listed as substitutes?

A: These parts are listed as functional alternatives within the Analog Devices and onsemi portfolios for signal conditioning applications. However, they are operational amplifiers, not digital-to-analog converters. They cannot replace the AD7111ABR in applications requiring DAC functionality with 17-bit resolution and parallel digital input.

Q: Are there package compatibility concerns when substituting the AD7111ABRZ?

A: No. Both the AD7111ABR and AD7111ABRZ use identical 16-SOIC (0.295", 7.50mm Width) surface mount packaging. Pin configuration, footprint, and mounting requirements are identical.

Q: What is the operating temperature range compatibility?

A: Both the AD7111ABR and AD7111ABRZ operate across -40°C to 85°C. This range is suitable for industrial and commercial applications. The ADA4610-1ARZ-RL extends to -40°C to 125°C, while MC33178DR2G maintains -40°C to 85°C.

Q: Do the substitute parts meet current compliance standards?

A: The AD7111ABRZ is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The ADA4610-1ARZ-RL and MC33178DR2G are also ROHS3 compliant and REACH unaffected. The original AD7111ABR compliance status is not specified in available documentation.