AD7655SCP-EP-RL Equivalent & Substitute Parts

Part Overview

The AD7655SCP-EP-RL is a 16-bit Successive Approximation Register (SAR) analog-to-digital converter manufactured by Analog Devices Inc., designed for data acquisition applications requiring simultaneous sampling across 2 or 4 input channels. The device operates at 1 MSPS sampling rate with external reference configuration and supports multiple data interfaces including SPI, Parallel, and DSP protocols.

The AD7655SCP-EP-RL 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 utilizing this component.

Substiute Parts

AD7655SCP-EP-RL

Analog Devices Inc.In Stock: 1130AD7655SCP-EP-RL Datasheet

Current PartRFQ

AD7655SCPZ-EP-RL

Analog Devices Inc.In Stock: 1199AD7655SCPZ-EP-RL Datasheet

DirectRFQ

AD7655ACPZ

Analog Devices Inc.In Stock: 1831AD7655ACPZ Datasheet

SimilarRFQ

AD7655ASTZRL

Analog Devices Inc.In Stock: 16845AD7655ASTZRL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7655SCP-EP-RL are identified based on matching the following critical electrical and mechanical parameters:

• 16-bit resolution
• 1 MSPS sampling rate
• 2 or 4 input channel configuration
• Pseudo-Differential and Single Ended input support
• SPI, Parallel, and DSP data interface compatibility
• SAR architecture
• External reference requirement
• 5V analog and digital supply voltages
• Simultaneous sampling capability
• -40°C to 85°C operating temperature range
• Surface mount configuration
• Moisture Sensitivity Level 3 (168 Hours)

Substitutes are grouped into two categories: direct packaging equivalents and functional equivalents with alternative packaging options.

Parameter Comparison

Engineering Selection Recommendations

The AD7655SCP-EP-RL is obsolete and requires substitution for new designs and ongoing production support.

AD7655SCPZ-EP-RL is the direct functional and packaging equivalent. It maintains identical electrical specifications, package configuration (48-LFCSP-VQ), and pin compatibility. This part is active and available in Tape & Reel packaging. It carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

AD7655ACPZ is functionally equivalent with identical electrical specifications and the same 48-LFCSP-VQ package footprint. This part is active and available in Tray packaging. It also meets ROHS3 compliance and REACH Unaffected requirements. Selection of this part depends on packaging and supply chain preferences.

AD7655ASTZRL is functionally equivalent in all electrical parameters but uses an alternative 48-LQFP package instead of the 48-LFCSP-VQ. This part is active and available in Cut Tape and Digi-Reel packaging. PCB layout modifications are required to accommodate the different package footprint. This option is suitable when 48-LQFP package compatibility exists in the design.

All substitute parts maintain the same 16-bit resolution, 1 MSPS sampling rate, multi-channel input configuration, and simultaneous sampling capability. Selection should prioritize AD7655SCPZ-EP-RL for direct replacement without design changes.

Frequently Asked Questions (FAQ)

Q: Can AD7655SCPZ-EP-RL be used as a direct replacement for AD7655SCP-EP-RL?

A: Yes. AD7655SCPZ-EP-RL is electrically and mechanically equivalent. Both use the 48-LFCSP-VQ package with identical pin assignments, electrical specifications, and functional capabilities. The primary difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Obsolete).

Q: What is the difference between AD7655ACPZ and AD7655SCPZ-EP-RL?

A: Both parts are functionally identical with matching electrical specifications and the same 48-LFCSP-VQ package footprint. The difference is packaging format: AD7655ACPZ is supplied in Tray packaging, while AD7655SCPZ-EP-RL is supplied in Tape & Reel. Selection depends on assembly process requirements and supply chain preferences.

Q: Can AD7655ASTZRL replace AD7655SCP-EP-RL without PCB modifications?

A: No. AD7655ASTZRL uses a 48-LQFP package, while the original part uses 48-LFCSP-VQ. Although electrically equivalent, the different package footprint requires PCB layout redesign. This substitution is suitable only when 48-LQFP package compatibility exists in the design.

Q: Are all substitute parts RoHS and REACH compliant?

A: All three substitute parts (AD7655SCPZ-EP-RL, AD7655ACPZ, and AD7655ASTZRL) are ROHS3 Compliant and REACH Unaffected. The original AD7655SCP-EP-RL compliance status is not specified.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: 16-bit resolution, 1 MSPS sampling rate, 2 or 4 input channels, Pseudo-Differential and Single Ended input support, SPI/Parallel/DSP data interfaces, SAR architecture, external reference requirement, 5V analog and digital supply voltages, simultaneous sampling capability, and -40°C to 85°C operating temperature range.

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

A: AD7655SCPZ-EP-RL is recommended for new designs. It provides direct functional and packaging equivalence to the obsolete AD7655SCP-EP-RL, requires no design modifications, and is actively manufactured with current compliance certifications.