AD8648WARUZ Equivalent & Substitute Parts

Part Overview

The AD8648WARUZ is a quad general-purpose operational amplifier manufactured by Analog Devices Inc., designed for rail-to-rail applications in low-voltage systems. This surface-mount device operates across a 2.7V to 5.5V supply range and delivers 24 MHz gain-bandwidth product performance with 11V/µs slew rate capability. The part is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. Substitute parts are identified when equivalent functional performance, package compatibility, and electrical specifications align within acceptable operating parameters for the intended application.

Substiute Parts

AD8648WARUZ

Analog Devices Inc.In Stock: 2387AD8648WARUZ Datasheet

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MCP6284-E/ST

Microchip TechnologyIn Stock: 14504MCP6284-E/ST Datasheet

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MCP634-E/ST

Microchip TechnologyIn Stock: 1327MCP634-E/ST Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD8648WARUZ are selected based on strict alignment of electrical and mechanical parameters. The primary substitution criteria include:

Critical Matching Parameters:

• Number of circuits: 4 channels required
• Output type: Rail-to-rail configuration mandatory
• Package type: 14-TSSOP surface-mount form factor
• Supply voltage range: Minimum 2.7V to maximum 5.5V compatibility
• Operating temperature range: -40°C to 125°C
• RoHS3 compliance and MSL rating

Performance-Based Grouping: Substitutes are categorized by gain-bandwidth product and slew rate alignment. The AD8648WARUZ operates at 24 MHz bandwidth with 11V/µs slew rate. Substitute parts maintain compatibility when they support the same package footprint, circuit count, and supply specifications, regardless of performance tier variations.

The identified substitutes—MCP634-E/ST and MCP6284-E/ST—both meet the core mechanical and electrical compatibility requirements for direct replacement in 14-TSSOP applications.

Parameter Comparison

Engineering Selection Recommendations

MCP634-E/ST Selection Criteria: The MCP634-E/ST from Microchip Technology provides the closest performance alignment to the AD8648WARUZ. Both devices deliver 24 MHz gain-bandwidth product and operate within comparable slew rate specifications (10V/µs versus 11V/µs). The MCP634-E/ST maintains identical package geometry, supply voltage range, and temperature operating window. All three devices carry active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. The MCP634-E/ST is suitable for applications where 24 MHz bandwidth performance is required and the 14-TSSOP footprint is specified.

MCP6284-E/ST Selection Criteria: The MCP6284-E/ST represents a lower-performance alternative with 5 MHz gain-bandwidth product and 2.5V/µs slew rate. This substitute is applicable only in applications where bandwidth and slew rate requirements are reduced compared to the primary device. The MCP6284-E/ST offers lower supply current consumption (0.45mA total versus 1.5mA) and reduced output current per channel (25mA versus 120mA). The device maintains identical package compatibility, temperature range, and compliance certifications. Selection of the MCP6284-E/ST is appropriate for low-speed, power-constrained applications within the 14-TSSOP form factor.

Compliance and Regulatory Alignment: All three devices maintain active production status, RoHS3 compliance, and unlimited moisture sensitivity classification. Supply voltage compatibility spans 2.2V to 5.5V across all substitutes, with the AD8648WARUZ and MCP634-E/ST supporting minimum 2.7V and 2.5V respectively. Operating temperature range remains constant at -40°C to 125°C across all options.

Frequently Asked Questions (FAQ)

Q: Can the MCP634-E/ST directly replace the AD8648WARUZ in existing PCB designs?

A: Yes. Both devices use identical 14-TSSOP package geometry with 0.173" width and 4.40mm dimensions. Pin-to-pin compatibility is maintained for quad general-purpose operational amplifier configurations. No PCB layout modifications are required for mechanical substitution.

Q: What are the performance differences between AD8648WARUZ and MCP634-E/ST?

A: Both devices deliver 24 MHz gain-bandwidth product. The AD8648WARUZ provides 11V/µs slew rate compared to 10V/µs for the MCP634-E/ST. Input bias current differs (0.3pA versus 4pA), and output current per channel is 120mA versus 85mA. Supply current consumption is 1.5mA versus 2.5mA. These differences are performance-tier variations within the same functional category.

Q: Is the MCP6284-E/ST suitable for high-speed applications?

A: No. The MCP6284-E/ST operates at 5 MHz gain-bandwidth product with 2.5V/µs slew rate, significantly lower than the AD8648WARUZ 24 MHz specification. This substitute is restricted to applications with reduced bandwidth and slew rate requirements.

Q: Do all three devices support the same supply voltage range?

A: The supply voltage maximum is 5.5V across all devices. Minimum supply voltage is 2.7V for AD8648WARUZ, 2.5V for MCP634-E/ST, and 2.2V for MCP6284-E/ST. Applications operating above 2.7V are compatible with all three options.

Q: Are there packaging differences between these substitutes?

A: The AD8648WARUZ is specified without packaging notation in the provided data. The MCP634-E/ST and MCP6284-E/ST are supplied in Tube packaging. All three devices use 14-TSSOP surface-mount case format with identical footprint dimensions.

Q: What is the moisture sensitivity rating for these devices?

A: All three devices carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage, handling, or reflow processing.

Q: Are all devices RoHS3 compliant?

A: Yes. The AD8648WARUZ, MCP634-E/ST, and MCP6284-E/ST all maintain ROHS3 compliance status with REACH Unaffected designation.

Q: Which substitute should be selected for power-sensitive applications?

A: The MCP6284-E/ST consumes 0.45mA total supply current across four channels, compared to 1.5mA for the AD8648WARUZ and 2.5mA for the MCP634-E/ST. Selection of the MCP6284-E/ST is appropriate for battery-powered or low-power applications where bandwidth requirements do not exceed 5 MHz.