AD7701ARS Equivalent & Substitute Parts

Part Overview

The AD7701ARS is a 16-bit Analog to Digital Converter featuring sigma-delta architecture with a single-ended input and SPI data interface. Manufactured by Analog Devices Inc., this component is packaged in a 28-SSOP surface mount configuration and operates across the industrial temperature range of -40°C to 85°C. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

AD7701ARS

Analog Devices Inc.In Stock: 1292AD7701ARS Datasheet

Current PartRFQ

AD7701ARSZ

Analog Devices Inc.In Stock: 1776AD7701ARSZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7701ARS is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute, AD7701ARSZ, maintains identical specifications for resolution, sampling rate, input configuration, data interface, supply voltages, operating temperature range, and physical package dimensions. Both parts share the same base product number (AD7701) and are manufactured by Analog Devices Inc.

The key parameters governing substitution are:

• 16-bit resolution and sigma-delta architecture
• 4k samples per second sampling rate
• Single-ended input with SPI interface
• 5V analog and digital supply voltages
• 28-SSOP surface mount package
• External reference type configuration

Parameter Comparison

Engineering Selection Recommendations

The AD7701ARSZ is the direct substitute for the AD7701ARS. Both components are electrically and mechanically identical across all specified parameters. The primary distinction is product status: the AD7701ARS is obsolete while the AD7701ARSZ maintains active production status. The AD7701ARSZ is RoHS3 compliant and REACH unaffected, providing regulatory compliance for new designs and ongoing procurement. For applications currently using the AD7701ARS, transition to the AD7701ARSZ is supported without circuit modification or re-qualification of electrical performance.

Frequently Asked Questions (FAQ)

Q: Can AD7701ARSZ directly replace AD7701ARS in existing designs? A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters including resolution, sampling rate, input configuration, data interface, supply voltages, operating temperature range, and 28-SSOP package dimensions.

Q: What is the difference between AD7701ARS and AD7701ARSZ? A: The primary difference is product status. AD7701ARS is obsolete; AD7701ARSZ is in active production. AD7701ARSZ includes RoHS3 compliance certification. No electrical or functional differences exist between the two parts.

Q: Are there packaging differences between these parts? A: Both parts use 28-SSOP surface mount packaging with identical dimensions (0.209" width, 5.30mm). The AD7701ARSZ is supplied in tube packaging, while the AD7701ARS packaging specification was not provided.

Q: Is the AD7701ARSZ suitable for industrial temperature applications? A: Yes. The AD7701ARSZ operates across the full industrial temperature range of -40°C to 85°C, identical to the AD7701ARS.

Q: What compliance certifications apply to the AD7701ARSZ? A: The AD7701ARSZ is RoHS3 compliant and REACH unaffected. Compliance information for the AD7701ARS was not provided in the specifications.