AD7652ACPZRL Equivalent & Substitute Parts

Part Overview

The AD7652ACPZRL is a 16-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc., part of the PulSAR® series. This device features a single pseudo-differential input with a 500 kSPS sampling rate and operates with 5V analog and digital supply voltages. The part is packaged in a 48-LFCSP-VQ (7x7) configuration suitable for surface mount applications.

The AD7652ACPZRL is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems currently utilizing this component.

Substiute Parts

AD7652ACPZRL

Analog Devices Inc.In Stock: 830AD7652ACPZRL Datasheet

Current PartRFQ

AD7988-5BCPZ-RL

Analog Devices Inc.In Stock: 1097AD7988-5BCPZ-RL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AD7652ACPZRL is determined by the following core parameters:

• Resolution: 16-bit ADC architecture
• Sampling Rate: 500 kSPS minimum performance
• Input Configuration: Single pseudo-differential input
• Architecture: SAR-based conversion
• Data Interface Compatibility: SPI and DSP support (minimum requirement)
• Reference Type: External or internal reference capability
• Moisture Sensitivity: MSL 3 classification

The AD7988-5BCPZ-RL meets the functional requirements for resolution, sampling rate, input type, architecture, and reference configuration. However, this substitute operates at different supply voltages (2.375V to 2.625V versus 5V) and uses a smaller package footprint (10-LFCSP-WD 3x3 versus 48-LFCSP-VQ 7x7). These differences require careful evaluation in the context of specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The AD7988-5BCPZ-RL is an active product from Analog Devices Inc. and represents a viable substitute from a functional standpoint, offering equivalent 16-bit resolution, 500 kSPS sampling rate, and SAR architecture. The substitute maintains MSL 3 moisture sensitivity classification and provides an extended operating temperature range (-40°C to 125°C versus -40°C to 85°C).

Critical design considerations for substitution:

Supply Voltage Incompatibility: The AD7652ACPZRL operates at 5V supply, while the AD7988-5BCPZ-RL requires 2.375V to 2.625V. Direct pin-for-pin replacement is not feasible without power supply redesign.

Package Footprint Difference: The substitute uses a significantly smaller 10-LFCSP-WD (3x3) package compared to the 48-LFCSP-VQ (7x7) package of the main part. PCB layout modifications are required.

Data Interface Reduction: The substitute supports SPI and DSP interfaces but does not include parallel interface support. Verify that your application does not depend on parallel data output.

Reference Configuration: The substitute supports external reference only, whereas the main part supports both external and internal reference types. Applications relying on internal reference require external reference implementation.

Compliance Status: The AD7988-5BCPZ-RL is ROHS3 compliant and REACH unaffected, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the AD7988-5BCPZ-RL be used as a direct replacement for the AD7652ACPZRL?

A: No. While both devices share 16-bit resolution, 500 kSPS sampling rate, and SAR architecture, they differ in supply voltage requirements (5V versus 2.375V-2.625V), package size (48-LFCSP-VQ versus 10-LFCSP-WD), and data interface support. Substitution requires circuit redesign.

Q: What is the primary reason for seeking a substitute for the AD7652ACPZRL?

A: The AD7652ACPZRL is classified as obsolete. Substitution is necessary to ensure continued component availability and support for new production builds.

Q: Are there any interface compatibility issues between these devices?

A: The AD7988-5BCPZ-RL does not support parallel interface output, which is available on the AD7652ACPZRL. If your design uses parallel data output, this substitute is not compatible without firmware or software modification.

Q: What are the package considerations for substitution?

A: The AD7652ACPZRL uses a 48-pin LFCSP package (7x7 mm), while the AD7988-5BCPZ-RL uses a 10-pin LFCSP package (3x3 mm). PCB layout redesign is required, including trace routing and component placement adjustments.

Q: Does the substitute support internal reference configuration?

A: No. The AD7988-5BCPZ-RL supports external reference only. The AD7652ACPZRL supports both external and internal reference types. Applications using internal reference must implement external reference circuitry with the substitute.

Q: What is the operating temperature difference between these parts?

A: The AD7652ACPZRL operates from -40°C to 85°C, while the AD7988-5BCPZ-RL operates from -40°C to 125°C. The substitute provides an extended upper temperature range suitable for higher-temperature applications.