EL5420CS Equivalent & Substitute Parts

Part Overview

The EL5420CS is a voltage feedback operational amplifier manufactured by Renesas Electronics Corporation, configured as a 4-circuit rail-to-rail amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The EL5420CS operates across a supply voltage range of 4.5V to 16.5V with a slew rate of 10V/µs and gain bandwidth product of 8 MHz, making it suitable for general-purpose analog signal conditioning applications.

Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity, component procurement, and system reliability in applications currently utilizing this amplifier. Substitute parts must maintain functional compatibility through matching package type, circuit count, output characteristics, and operating temperature range while accommodating differences in electrical performance parameters.

Substiute Parts

EL5420CS

Renesas Electronics CorporationIn Stock: 3642EL5420CS Datasheet

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EL5420CSZ

Renesas Electronics CorporationIn Stock: 944EL5420CSZ Datasheet

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OPA4354AID

Texas InstrumentsIn Stock: 1530OPA4354AID Datasheet

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OPA4354AIDR

Texas InstrumentsIn Stock: 50303OPA4354AIDR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL5420CS are categorized based on functional and physical compatibility criteria. The primary substitution logic is structured as follows:

Direct Packaging Substitute (Same Series): The EL5420CSZ represents a direct equivalent from the same manufacturer and series, maintaining identical electrical specifications and package configuration. The distinction lies in packaging format (tube versus reel) and product status (active versus obsolete), with improved RoHS3 compliance.

Cross-Manufacturer Substitutes (Performance Enhancement): The OPA4354AID and OPA4354AIDR are Texas Instruments CMOS amplifiers that share the identical 14-SOIC package footprint, 4-circuit configuration, rail-to-rail output capability, and operating temperature range. These parts represent functional alternatives with enhanced electrical performance characteristics, including higher slew rate (150V/µs versus 10V/µs), increased gain bandwidth product (100 MHz versus 8 MHz), and lower input bias current (3 pA versus 2 nA). However, these substitutes operate within a reduced supply voltage range (2.5V to 5.5V versus 4.5V to 16.5V) and exhibit higher supply current consumption.

Key Parameters Determining Substitution Eligibility:

• 14-SOIC package footprint (0.154", 3.90mm width)
• 4-circuit configuration
• Rail-to-rail output type
• Surface mount mounting type
• Operating temperature range: -40°C to 125°C
• Voltage offset specification: 2 mV maximum

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance): The EL5420CSZ is the primary substitute for the obsolete EL5420CS. Both parts maintain identical electrical specifications, package configuration, and functional characteristics. The EL5420CSZ is currently in active production status with improved RoHS3 compliance, making it the preferred choice for applications requiring exact performance matching. The transition from tube to cut tape or digi-reel packaging may require adjustment to procurement and assembly processes.

For Performance-Enhanced Applications: The OPA4354AID and OPA4354AIDR offer superior electrical performance with 15-fold increase in slew rate, 12.5-fold increase in gain bandwidth product, and 50-fold reduction in input bias current. These Texas Instruments CMOS amplifiers are suitable for applications where enhanced bandwidth and faster signal response are beneficial. However, the reduced supply voltage range (2.5V to 5.5V) restricts their use to systems operating within this narrower voltage window. Both OPA4354 variants maintain active production status and full RoHS3 compliance.

Compliance Considerations: All substitute parts carry ROHS3 compliance certification, addressing regulatory requirements for new designs. The EL5420CS exhibits non-compliant status, making migration to compliant alternatives necessary for applications subject to environmental regulations. Moisture sensitivity levels vary across the substitute options, requiring appropriate handling and storage protocols during assembly and deployment.

Frequently Asked Questions (FAQ)

Q: Can the EL5420CSZ be used as a direct drop-in replacement for the EL5420CS?

A: Yes. The EL5420CSZ maintains identical electrical specifications, package footprint, and circuit configuration as the EL5420CS. The primary difference is packaging format (tube versus reel) and active production status. No circuit modifications are required for substitution.

Q: What are the limitations of using OPA4354 variants as substitutes?

A: The OPA4354AID and OPA4354AIDR operate within a reduced supply voltage range of 2.5V to 5.5V, compared to the EL5420CS range of 4.5V to 16.5V. Applications requiring supply voltages above 5.5V cannot use these substitutes. Additionally, these CMOS amplifiers exhibit higher supply current consumption (4.9 mA per 4 channels versus 500 µA), which may impact power budget calculations in battery-powered or low-power applications.

Q: Are the OPA4354 variants pin-compatible with the EL5420CS?

A: Yes. All three substitute parts utilize the identical 14-SOIC package footprint (0.154", 3.90mm width), ensuring mechanical and electrical pin compatibility at the PCB level. No layout modifications are necessary for package substitution.

Q: What is the significance of the different moisture sensitivity levels?

A: Moisture sensitivity level (MSL) determines the maximum time a component can be exposed to ambient conditions before assembly. The EL5420CS has MSL 1 (unlimited exposure), while EL5420CSZ has MSL 3 (168 hours maximum), and OPA4354 variants have MSL 2 (1 year maximum). Higher MSL ratings require more stringent moisture control during storage and handling to prevent solder joint degradation.

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

A: For new designs, the EL5420CSZ is recommended as the primary choice due to identical electrical performance and active production status. If enhanced bandwidth and faster response characteristics are required within the 2.5V to 5.5V supply range, the OPA4354AIDR offers superior performance with the highest inventory availability and digi-reel packaging suitable for automated assembly.

Q: Are there any thermal or reliability differences between the substitute parts?

A: All substitute parts maintain the identical operating temperature range of -40°C to 125°C. Thermal performance and reliability characteristics are determined by the specific application circuit design, PCB layout, and thermal management implementation rather than inherent differences between the amplifier devices themselves.