EL5420CSZ Equivalent & Substitute Parts

Part Overview

The EL5420CSZ 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 Active product status and is RoHS3 compliant. The EL5420CSZ serves applications requiring low-power, general-purpose amplification with moderate bandwidth and slew rate characteristics. Substitute parts are identified when equivalent functional performance can be achieved within the constraints of the application's electrical and mechanical requirements, particularly when supply voltage compatibility, output current capability, or packaging alternatives are considerations.

Substiute Parts

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 EL5420CSZ are identified based on the following critical parameters that determine functional and mechanical compatibility:

Mechanical Compatibility:

• Package type: 14-SOIC surface mount
• Package dimensions: 0.154" width (3.90mm)
• Mounting type: Surface mount

Functional Compatibility:

• Number of circuits: 4 independent amplifier channels
• Output type: Rail-to-rail operation
• Operating temperature range: -40°C to 125°C
• Compliance: RoHS3 compliant, REACH unaffected

Electrical Compatibility Considerations:

• Supply voltage range overlap
• Output current capability per channel
• Input offset voltage specification
• Input bias current specification

The substitute parts OPA4354AID and OPA4354AIDR, both manufactured by Texas Instruments, share identical mechanical packaging (14-SOIC) and core functional architecture (4-circuit rail-to-rail amplifiers). These devices operate within the same temperature range and meet equivalent compliance standards. However, electrical performance characteristics differ significantly, particularly in slew rate, gain bandwidth product, supply current consumption, and supply voltage operating range. These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

EL5420CSZ Primary Application Profile: The EL5420CSZ is suitable for applications requiring moderate bandwidth amplification with extended supply voltage range (4.5V to 16.5V). The lower slew rate (10V/µs) and moderate gain bandwidth product (8 MHz) indicate suitability for general-purpose signal conditioning, filtering, and buffering applications where high-speed performance is not required. The device supports higher supply voltages than typical single-supply CMOS amplifiers.

OPA4354AID / OPA4354AIDR Substitution Criteria: The OPA4354 series (both tube and tape/reel packaging variants) represents a higher-performance alternative with significantly enhanced bandwidth characteristics (100 MHz gain bandwidth product, 250 MHz -3dB bandwidth) and slew rate (150V/µs). These devices are suitable for applications requiring faster signal processing and higher output current capability (100 mA per channel versus 30 mA). However, the OPA4354 series operates within a restricted supply voltage range (2.5V to 5.5V), making it incompatible with applications requiring the extended voltage range of the EL5420CSZ.

Substitution Feasibility:

• Mechanical compatibility: Confirmed. Both substitute parts use identical 14-SOIC packaging.
• Functional compatibility: Confirmed for 4-circuit rail-to-rail architecture and operating temperature range.
• Compliance compatibility: Confirmed. All parts are RoHS3 compliant and REACH unaffected.
• Electrical compatibility: Conditional. Substitution is valid only when application supply voltage requirements fall within the 2.5V to 5.5V range of the OPA4354 series.

Packaging Format Consideration: OPA4354AID is supplied in Tube packaging, matching the EL5420CSZ format. OPA4354AIDR is supplied in Cut Tape and Digi-Reel format, offering alternative procurement and handling options for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the OPA4354AID directly replace the EL5420CSZ in all applications?

A: Direct replacement is valid only when the application supply voltage requirement falls within 2.5V to 5.5V. The EL5420CSZ supports supply voltages up to 16.5V, while the OPA4354AID maximum supply is 5.5V. Applications requiring higher supply voltages cannot use the OPA4354 series as a substitute.

Q: What are the key electrical differences between the EL5420CSZ and OPA4354 series?

A: The primary differences are slew rate (10V/µs versus 150V/µs), gain bandwidth product (8 MHz versus 100 MHz), supply current per channel (500µA versus 4.9mA), and output current capability (30 mA versus 100 mA per channel). The OPA4354 series offers superior high-frequency performance and output drive capability at the cost of increased supply current consumption.

Q: Are the 14-SOIC packages physically identical between EL5420CSZ and OPA4354 series?

A: Yes. Both the EL5420CSZ and OPA4354 series use 14-SOIC packages with 0.154" width (3.90mm). PCB footprints are identical, and both are surface mount devices. No layout modifications are required for package compatibility.

Q: What is the difference between OPA4354AID and OPA4354AIDR?

A: Both parts are electrically and functionally identical. The difference is packaging format: OPA4354AID is supplied in Tube packaging, while OPA4354AIDR is supplied in Cut Tape and Digi-Reel format. Selection depends on procurement and assembly process requirements.

Q: Can the OPA4354 series be used in applications requiring the full 4.5V to 16.5V supply range of the EL5420CSZ?

A: No. The OPA4354 series maximum supply voltage is 5.5V. Applications requiring operation above 5.5V must use the EL5420CSZ or identify alternative amplifiers with compatible voltage specifications.

Q: Are all three parts (EL5420CSZ, OPA4354AID, OPA4354AIDR) RoHS3 compliant?

A: Yes. All three parts are RoHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards.

Q: What is the input bias current difference between EL5420CSZ and OPA4354 series?

A: The EL5420CSZ specifies 2 nA input bias current, while the OPA4354 series specifies 3 pA (0.003 nA). The OPA4354 series exhibits significantly lower input bias current due to CMOS architecture, which may provide advantages in high-impedance signal conditioning applications.

Q: Should I consider the OPA4354 series for new designs if supply voltage compatibility exists?

A: Selection between EL5420CSZ and OPA4354 series depends on application bandwidth and slew rate requirements. The OPA4354 series offers superior high-frequency performance (100 MHz versus 8 MHz gain bandwidth product) and faster slew rate (150V/µs versus 10V/µs). For applications requiring moderate bandwidth with extended supply voltage range, the EL5420CSZ remains the appropriate choice.