AD7111ACN Equivalent & Substitute Parts

Part Overview

The AD7111ACN is a 17-bit digital-to-analog converter manufactured by Analog Devices Inc., designed for data acquisition applications requiring high-resolution current output. The device features an R-2R architecture with unbuffered current output, parallel data interface, and operates across the industrial temperature range of -40°C to 85°C in a 16-DIP package.

The AD7111ACN is classified as obsolete. Identifying suitable substitute components is necessary for system redesign, production continuation, or component availability management when original stock is depleted or procurement becomes impractical.

Substiute Parts

AD7111ACN

Analog Devices Inc.In Stock: 1074AD7111ACN Datasheet

Current PartRFQ

ADA4610-1ARZ

Analog Devices Inc.In Stock: 1378ADA4610-1ARZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ADA4610-1ARZ is listed as a substitute for the AD7111ACN. However, this substitution requires careful engineering evaluation due to fundamental functional differences between the two devices.

The AD7111ACN is a digital-to-analog converter (DAC) with 17-bit resolution, parallel data interface, and current output architecture. The ADA4610-1ARZ is a J-FET operational amplifier with rail-to-rail output characteristics. These devices serve different functional roles within signal processing circuits.

Substitution logic is based on the following criteria:

• Manufacturer alignment (both Analog Devices Inc.)
• Supply voltage compatibility (both operate at 5V nominal)
• Operating temperature range overlap (-40°C to 85°C for AD7111ACN; -40°C to 125°C for ADA4610-1ARZ)
• Compliance and certification status (both EAR99 classified)

The ADA4610-1ARZ may function as a substitute in applications where the operational amplifier characteristics (high input impedance, low input bias current of 5 pA, rail-to-rail output) can replace or augment the current output stage of the original DAC design, provided the system architecture is modified accordingly.

Parameter Comparison

Engineering Selection Recommendations

Selection between the AD7111ACN and ADA4610-1ARZ must account for the following factors:

Product Status: The AD7111ACN is obsolete, while the ADA4610-1ARZ maintains active production status with confirmed inventory availability (1310 units). Active status ensures ongoing supply chain support and manufacturing consistency.

Compliance & Certification: Both devices carry identical ECCN classification (EAR99) and unlimited moisture sensitivity rating (MSL 1), indicating equivalent regulatory and environmental handling requirements.

Supply Voltage Compatibility: The AD7111ACN requires fixed 5V analog and digital supplies. The ADA4610-1ARZ accepts a wider supply voltage span (9V to 30V), providing greater flexibility in power distribution design but requiring voltage regulation if 5V operation is mandated.

Thermal Operating Range: The ADA4610-1ARZ extends the upper operating temperature limit to 125°C compared to the AD7111ACN's 85°C maximum, offering improved performance margin in elevated-temperature environments.

Package & Mounting Transition: Substitution requires transition from through-hole 16-DIP to surface-mount 8-SOIC packaging, necessitating PCB redesign and assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can the ADA4610-1ARZ directly replace the AD7111ACN in existing PCB designs?

A: Direct pin-for-pin replacement is not possible. The ADA4610-1ARZ uses 8-SOIC surface-mount packaging versus the AD7111ACN's 16-DIP through-hole package. Additionally, functional differences between a DAC and operational amplifier require circuit architecture modifications. PCB redesign is mandatory.

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

A: The AD7111ACN is a 17-bit digital-to-analog converter with parallel data interface and unbuffered current output. The ADA4610-1ARZ is a J-FET operational amplifier with rail-to-rail output. These devices perform distinct signal processing functions and cannot be substituted without system-level redesign.

Q: Are both devices suitable for industrial temperature applications?

A: The AD7111ACN operates from -40°C to 85°C. The ADA4610-1ARZ extends this range to -40°C to 125°C, providing superior performance margin in high-temperature environments. Both devices meet industrial temperature specifications within their respective ranges.

Q: What supply voltage requirements must be met for each device?

A: The AD7111ACN requires fixed 5V supplies for both analog and digital circuits. The ADA4610-1ARZ accepts supply voltages from 9V to 30V, requiring external voltage regulation if 5V operation is required in the system design.

Q: Are there compliance or export restrictions affecting either device?

A: Both devices carry identical EAR99 export classification and unlimited moisture sensitivity rating (MSL 1), indicating equivalent regulatory treatment and environmental handling requirements.

Q: What inventory status should influence component selection?

A: The AD7111ACN is obsolete with limited remaining stock. The ADA4610-1ARZ maintains active production status with confirmed availability (1310 units in stock), ensuring long-term supply chain reliability for new designs or production continuation.