AD7887AR Equivalent & Substitute Parts

Part Overview

The AD7887AR is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring single-ended input conversion with SAR (Successive Approximation Register) architecture. The device operates at a 125 kSPS sampling rate and supports both SPI and DSP data interfaces, making it suitable for industrial measurement and signal processing systems.

The AD7887AR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for legacy systems and new designs requiring compatible performance characteristics.

Substiute Parts

AD7887AR

Analog Devices Inc.In Stock: 1711AD7887AR Datasheet

Current PartRFQ

AD7887ARZ

Analog Devices Inc.In Stock: 5910AD7887ARZ Datasheet

DirectRFQ

AD7887BRZ

Analog Devices Inc.In Stock: 25380AD7887BRZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7887AR are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Critical Parameters for Substitution:

• Resolution: 12 bits
• Sampling Rate: 125 kSPS
• Number of Inputs: 1, 2
• Input Type: Single Ended
• Data Interface: SPI, DSP
• Architecture: SAR
• Reference Type: External, Internal
• Supply Voltage Ranges: Analog 2.7V ~ 5.25V, Digital 2.7V ~ 5.25V
• Operating Temperature: -40°C ~ 125°C
• Package: 8-SOIC
• Mounting Type: Surface Mount

All substitute parts listed maintain identical electrical specifications and physical packaging, ensuring direct functional compatibility in circuit designs. Differences in product status and compliance certifications are noted for procurement and regulatory considerations.

Parameter Comparison

Engineering Selection Recommendations

AD7887ARZ is a direct manufacturer equivalent with identical electrical and mechanical specifications to the AD7887AR. This part carries Active product status and holds ROHS3 compliance and REACH Unaffected certification, making it suitable for new designs and applications requiring regulatory compliance documentation. Inventory availability is 5,894 units.

AD7887BRZ is a parametric equivalent offering the same functional performance as the AD7887AR with identical electrical characteristics and 8-SOIC packaging. This part also maintains Active product status with ROHS3 compliance and REACH Unaffected certification. With 25,300 units in stock, AD7887BRZ provides superior supply chain availability for sustained production requirements.

Both substitute parts are manufactured by Analog Devices Inc. and maintain full compatibility with existing circuit designs using the AD7887AR. Selection between AD7887ARZ and AD7887BRZ should be based on inventory requirements and supply chain considerations, as both parts deliver equivalent performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can AD7887ARZ and AD7887BRZ be used interchangeably with AD7887AR?

A: Yes. Both substitute parts maintain identical electrical specifications, sampling rates, input configurations, supply voltage ranges, operating temperature ranges, and 8-SOIC packaging. Direct substitution is supported without circuit modification.

Q: What is the difference between AD7887ARZ and AD7887BRZ?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary differences are product status (both Active), inventory levels (AD7887BRZ: 25,300 units; AD7887ARZ: 5,894 units), and internal device grading. Both hold ROHS3 compliance and REACH Unaffected certification.

Q: Why is the AD7887AR classified as obsolete?

A: The AD7887AR has reached end-of-life status. Active equivalent parts (AD7887ARZ and AD7887BRZ) are available from Analog Devices Inc. to support continued design requirements and supply chain continuity.

Q: Are there any packaging differences between these parts?

A: No. All three parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging with the same pinout and mechanical dimensions. PCB layout and assembly processes require no modification.

Q: What compliance certifications apply to the substitute parts?

A: Both AD7887ARZ and AD7887BRZ are ROHS3 compliant and REACH Unaffected. These certifications support use in regulated industries and applications with environmental compliance requirements.

Q: Which substitute part should be selected for new designs?

A: Both AD7887ARZ and AD7887BRZ are suitable for new designs. Selection should be based on inventory availability and supply chain strategy. AD7887BRZ offers higher stock levels (25,300 units) for sustained production volumes.