OP495GS Equivalent & Substitute Parts

Part Overview

The OP495GS is a general-purpose operational amplifier manufactured by Analog Devices Inc., configured as a 4-circuit rail-to-rail amplifier in a 16-SOIC surface mount package. This device is classified as obsolete, indicating that direct procurement from primary sources may be limited. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this amplifier configuration.

Substiute Parts

OP495GS

Analog Devices Inc.In Stock: 2280OP495GS Datasheet

Current PartRFQ

OP495GSZ

Analog Devices Inc.In Stock: 1513OP495GSZ Datasheet

DirectRFQ

ADA4096-4ACPZ-RL

Analog Devices Inc.In Stock: 5283ADA4096-4ACPZ-RL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OP495GS are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Packaging Variant): OP495GSZ represents a direct functional equivalent with identical electrical specifications and the same 16-SOIC package footprint. The primary distinction is packaging format (tube versus tape and reel), which does not affect circuit-level compatibility or performance characteristics.

Functional Substitute (Enhanced Performance): ADA4096-4ACPZ-RL is a functionally similar 4-circuit general-purpose rail-to-rail amplifier from Analog Devices Inc. This device operates within the same supply voltage range and temperature specifications but features enhanced electrical performance characteristics. The ADA4096-4ACPZ-RL utilizes a different package format (16-LFCSP-WQ) and exhibits superior slew rate, gain bandwidth product, input bias current, and input offset voltage specifications. This substitution is applicable when design requirements permit package footprint changes and when improved performance characteristics are beneficial.

Key Parameters Determining Substitution:

• Amplifier type and circuit count (4-circuit general-purpose configuration)
• Output type (rail-to-rail operation)
• Supply voltage compatibility (3 V to 30 V minimum overlap)
• Operating temperature range (-40°C to 125°C)
• Surface mount technology
• Manufacturer (Analog Devices Inc.)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required):

The OP495GSZ is the recommended substitute when maintaining the existing 16-SOIC package footprint and electrical performance specifications. This part is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. The OP495GSZ provides identical functional performance to the obsolete OP495GS while offering improved supply chain stability. Inventory availability of 1,459 units supports immediate procurement requirements.

For Enhanced Performance Applications:

The ADA4096-4ACPZ-RL is suitable for applications where design modifications to accommodate a different package footprint (16-LFCSP-WQ) are permissible and where improved performance characteristics provide system-level benefits. This device offers superior slew rate (0.4 V/µs versus 0.03 V/µs), significantly higher gain bandwidth product (786 kHz versus 75 kHz), lower input bias current (3 nA versus 7 nA), and reduced input offset voltage (35 µV versus 300 µV). The ADA4096-4ACPZ-RL is active production status with ROHS3 compliance. The maximum supply voltage specification (30 V) is lower than the OP495GS (36 V), requiring verification against application requirements. Moisture sensitivity level MSL-3 requires controlled storage conditions (168-hour maximum floor life after moisture exposure).

Compliance and Regulatory Considerations:

Both substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The OP495GSZ maintains the same moisture sensitivity level (MSL-1) as the original part, simplifying handling and storage procedures. The ADA4096-4ACPZ-RL requires MSL-3 compliance procedures, necessitating bake-out protocols prior to assembly if floor life limits are exceeded.

Frequently Asked Questions (FAQ)

Q: Can OP495GSZ be used as a direct replacement for OP495GS without PCB modifications?

A: Yes. The OP495GSZ is electrically and mechanically identical to the OP495GS, utilizing the same 16-SOIC package footprint and pinout. No PCB layout changes are required. The primary difference is packaging format (tube versus tape and reel), which does not affect circuit functionality.

Q: What are the key differences between OP495GSZ and ADA4096-4ACPZ-RL?

A: The primary differences are package format and electrical performance. The OP495GSZ maintains the 16-SOIC package, while the ADA4096-4ACPZ-RL uses a smaller 16-LFCSP-WQ (3x3) package. The ADA4096-4ACPZ-RL provides superior performance with 13.3× higher gain bandwidth product (786 kHz versus 75 kHz), 13.3× faster slew rate (0.4 V/µs versus 0.03 V/µs), lower input bias current (3 nA versus 7 nA), and significantly lower input offset voltage (35 µV versus 300 µV). The ADA4096-4ACPZ-RL has a lower maximum supply voltage (30 V versus 36 V) and higher moisture sensitivity level (MSL-3 versus MSL-1).

Q: Is the ADA4096-4ACPZ-RL suitable for all OP495GS applications?

A: The ADA4096-4ACPZ-RL is functionally compatible for applications operating within the 3 V to 30 V supply range. Applications requiring supply voltages between 30 V and 36 V require the OP495GSZ. The different package footprint (16-LFCSP-WQ versus 16-SOIC) necessitates PCB redesign. The enhanced performance characteristics of the ADA4096-4ACPZ-RL are beneficial for applications requiring higher bandwidth, faster transient response, or lower offset voltage specifications.

Q: What is the impact of MSL-3 moisture sensitivity on the ADA4096-4ACPZ-RL?

A: MSL-3 classification requires that the device be stored in controlled humidity conditions and limits floor life to 168 hours after moisture exposure. Prior to assembly, the device must undergo a bake-out procedure if floor life limits are exceeded. This is a standard industry requirement for fine-pitch packages and does not affect device performance or reliability when proper handling procedures are followed.

Q: Are both substitute parts available in current production?

A: Yes. Both OP495GSZ and ADA4096-4ACPZ-RL are classified as active production status. The OP495GSZ has 1,459 units in stock, and the ADA4096-4ACPZ-RL has 5,200 units in stock, supporting immediate procurement requirements.

Q: What compliance certifications apply to the substitute parts?

A: Both OP495GSZ and ADA4096-4ACPZ-RL carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components.