AD7862ARS-3 Equivalent & Substitute Parts

Part Overview

The AD7862ARS-3 is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring simultaneous sampling across 4 single-ended inputs with 2 SAR converters. The device operates at a 250 kSPS sampling rate with external or internal reference capability and is housed in a 28-SSOP surface mount package.

The AD7862ARS-3 is classified as obsolete. Direct substitutes with active product status are available from the same manufacturer, offering identical electrical and mechanical specifications with improved availability and compliance certifications.

Substiute Parts

AD7862ARS-3

Analog Devices Inc.In Stock: 901AD7862ARS-3 Datasheet

Current PartRFQ

AD7862ARSZ-3

Analog Devices Inc.In Stock: 1380AD7862ARSZ-3 Datasheet

DirectRFQ

AD7862ARSZ-10

Analog Devices Inc.In Stock: 1684AD7862ARSZ-10 Datasheet

Parametric EquivalentRFQ

AD7862ARSZ-2

Analog Devices Inc.In Stock: 1510AD7862ARSZ-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7862ARS-3 is determined by strict equivalence across all electrical and mechanical parameters. The substitute parts AD7862ARSZ-3, AD7862ARSZ-10, and AD7862ARSZ-2 maintain identical specifications for resolution, sampling rate, input configuration, converter architecture, supply voltages, operating temperature range, and package form factor.

The primary distinction between the main part and substitutes is product status and packaging format. The AD7862ARS-3 is supplied in standard packaging, while the substitute variants (AD7862ARSZ series) are supplied in tube packaging and maintain active product status with current RoHS3 compliance and REACH unaffected certifications.

All parts share the same base product number (AD7862) and are fully interchangeable at the functional and mechanical level.

Parameter Comparison

Engineering Selection Recommendations

The AD7862ARSZ-3, AD7862ARSZ-10, and AD7862ARSZ-2 are direct functional equivalents to the obsolete AD7862ARS-3. Selection among the three active substitutes should be based on supply chain availability and packaging requirements, as all three maintain identical electrical performance and mechanical compatibility.

The substitute parts carry active product status and current compliance certifications (RoHS3 Compliant, REACH Unaffected), making them suitable for new designs and production environments requiring regulatory compliance documentation. The transition from the obsolete AD7862ARS-3 to any of the AD7862ARSZ variants requires no circuit redesign or application firmware modification.

Frequently Asked Questions (FAQ)

Q: Are the AD7862ARSZ variants pin-compatible with the AD7862ARS-3?

A: Yes. All parts use the 28-SSOP package with identical pinout and electrical interface specifications. No PCB redesign is required.

Q: What is the difference between AD7862ARSZ-3, AD7862ARSZ-10, and AD7862ARSZ-2?

A: These variants are parametrically equivalent. The suffix designations reflect internal Analog Devices product line management. All three maintain identical electrical specifications, sampling rate, resolution, and operating characteristics.

Q: Can I use an AD7862ARSZ substitute in a design originally specified for AD7862ARS-3?

A: Yes. The substitute parts are functionally and mechanically identical. No application code, circuit topology, or timing modifications are necessary.

Q: What is the packaging difference between the main part and substitutes?

A: The AD7862ARS-3 is supplied in standard packaging. The AD7862ARSZ variants are supplied in tube packaging. Both formats are suitable for automated assembly processes.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. The AD7862ARSZ-3, AD7862ARSZ-10, and AD7862ARSZ-2 are RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Is there a performance difference between the obsolete and active variants?

A: No. All electrical and functional parameters are identical. The active status of the substitute parts reflects current manufacturing and compliance status, not performance changes.