EL5244CS Equivalent & Substitute Parts

Part Overview

The EL5244CS is a voltage feedback amplifier manufactured by Renesas Electronics Corporation, featuring two circuits in a rail-to-rail configuration housed in an 8-SOIC package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. The EL5244CS operates across a 4.75V to 5.25V supply range with a slew rate of 200V/µs and gain bandwidth product of 60 MHz, making it suitable for general-purpose analog signal conditioning applications.

Substiute Parts

EL5244CS

Renesas Electronics CorporationIn Stock: 7209EL5244CS Datasheet

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OPA2314AQDRQ1

Texas InstrumentsIn Stock: 35252OPA2314AQDRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL5244CS is determined by the following critical parameters that must align with the original design requirements:

Package Compatibility: Both the main part and substitute must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility without layout modifications.

Circuit Configuration: The substitute must provide two independent amplifier circuits in a single package to maintain the dual-channel functionality of the EL5244CS.

Output Architecture: Rail-to-rail output capability is required to preserve the signal swing characteristics of the original design.

Electrical Operating Range: The substitute must operate within or encompass the 4.75V to 5.25V supply voltage range of the EL5244CS. Substitutes with wider supply ranges remain compatible provided the minimum and maximum ratings include the original operating window.

Temperature Range: The substitute must support the -40°C to 85°C operating temperature specification of the original part.

The OPA2314AQDRQ1 meets these substitution criteria through identical package geometry, dual-circuit configuration, rail-to-rail output, and compatible operating temperature range. The OPA2314AQDRQ1 operates across 1.8V to 5.5V, which encompasses the EL5244CS supply range.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The EL5244CS is classified as obsolete, while the OPA2314AQDRQ1 maintains active production status. This distinction is critical for long-term supply chain reliability and design continuity.

Compliance and Certification: The OPA2314AQDRQ1 carries AEC-Q100 automotive qualification, indicating compliance with automotive-grade reliability and testing standards. This certification provides additional assurance for applications requiring enhanced quality assurance, though it is not required for all commercial applications.

Electrical Performance Trade-offs: The OPA2314AQDRQ1 exhibits lower slew rate (1.5V/µs versus 200V/µs) and lower gain bandwidth product (3 MHz versus 60 MHz) compared to the EL5244CS. Applications requiring high-speed signal conditioning or fast transient response may require circuit redesign or alternative substitutes. Conversely, the OPA2314AQDRQ1 demonstrates superior input bias current (2 pA versus 2 nA) and input offset voltage (500 µV versus 25 mV), benefiting precision measurement circuits.

Supply Current Advantage: The OPA2314AQDRQ1 operates at significantly lower supply current (150µA total versus 7mA total), providing substantial power consumption reduction in battery-powered or thermally constrained applications.

Output Current Limitation: The OPA2314AQDRQ1 provides 20 mA per channel output current compared to 90 mA per channel in the EL5244CS. Applications requiring higher output drive capability must incorporate external buffering or select alternative substitutes.

Supply Voltage Range: The OPA2314AQDRQ1 operates across 1.8V to 5.5V, encompassing the EL5244CS range of 4.75V to 5.25V. This wider range enables flexibility in multi-voltage system designs.

Temperature Operating Range: The OPA2314AQDRQ1 extends the upper operating temperature to 125°C compared to 85°C for the EL5244CS, supporting applications in elevated ambient conditions.

Frequently Asked Questions (FAQ)

Q: Can the OPA2314AQDRQ1 directly replace the EL5244CS without PCB modifications?

A: Yes, direct PCB footprint replacement is possible. Both devices use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pin spacing and layout. No PCB layout changes are required for physical installation.

Q: What are the key electrical differences between these devices?

A: The primary differences are slew rate (200V/µs for EL5244CS versus 1.5V/µs for OPA2314AQDRQ1), gain bandwidth product (60 MHz versus 3 MHz), and output current per channel (90 mA versus 20 mA). The OPA2314AQDRQ1 offers superior input bias current and input offset voltage specifications. Applications sensitive to these parameters require circuit analysis to determine substitution feasibility.

Q: Is the OPA2314AQDRQ1 suitable for high-frequency applications?

A: The OPA2314AQDRQ1 has a gain bandwidth product of 3 MHz, which is significantly lower than the EL5244CS at 60 MHz. Applications requiring bandwidth above 3 MHz or high-speed signal conditioning require alternative substitutes or circuit redesign.

Q: What is the significance of the AEC-Q100 qualification on the OPA2314AQDRQ1?

A: AEC-Q100 is an automotive industry standard qualification that certifies the device meets rigorous reliability, testing, and quality requirements. This qualification is relevant for automotive applications or systems requiring automotive-grade component reliability. Commercial applications without automotive requirements do not require this certification.

Q: Can the OPA2314AQDRQ1 supply the same output current as the EL5244CS?

A: No. The OPA2314AQDRQ1 provides 20 mA per channel output current, while the EL5244CS provides 90 mA per channel. Applications requiring 90 mA output current must either use external output buffers with the OPA2314AQDRQ1 or select alternative substitutes with higher output current ratings.

Q: What are the supply current implications of using the OPA2314AQDRQ1?

A: The OPA2314AQDRQ1 operates at 150µA total supply current compared to 7mA for the EL5244CS. This represents a 46-fold reduction in quiescent current, providing significant power consumption benefits in battery-powered systems and reducing thermal dissipation in power-constrained applications.

Q: Does the OPA2314AQDRQ1 operate within the EL5244CS supply voltage range?

A: Yes. The OPA2314AQDRQ1 operates across 1.8V to 5.5V, which encompasses the EL5244CS operating range of 4.75V to 5.25V. The wider supply range of the OPA2314AQDRQ1 provides additional design flexibility.

Q: Are there RoHS compliance differences between these devices?

A: The EL5244CS is marked as RoHS non-compliant. RoHS compliance status for the OPA2314AQDRQ1 is not specified in the provided data. Applications requiring RoHS-compliant components should verify compliance status with the manufacturer or authorized distributor.

Q: What temperature range does the OPA2314AQDRQ1 support?

A: The OPA2314AQDRQ1 operates across -40°C to 125°C, extending the upper temperature limit by 40°C compared to the EL5244CS (-40°C to 85°C). This extended range supports applications in elevated ambient temperature environments.