EL5244CS-T7 Equivalent & Substitute Parts

Part Overview

The EL5244CS-T7 is a voltage feedback amplifier manufactured by Renesas Electronics Corporation, configured as a dual-channel (2 circuit) rail-to-rail operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinuation from the manufacturer. The identification of equivalent and substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications currently utilizing this component.

Substiute Parts

EL5244CS-T7

Renesas Electronics CorporationIn Stock: 2372EL5244CS-T7 Datasheet

Current PartRFQ

OPA2314AQDRQ1

Texas InstrumentsIn Stock: 35252OPA2314AQDRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL5244CS-T7 is determined by the following critical parameters that must align between the main part and substitute candidates:

Package Compatibility: The 8-SOIC surface mount package is a mandatory requirement for direct substitution without PCB redesign. The package dimensions (0.154", 3.90mm Width) establish the physical footprint constraint.

Dual-Channel Configuration: The substitute must provide 2 independent amplifier circuits within a single package to maintain circuit topology and reduce component count.

Rail-to-Rail Output: The output stage must operate from rail-to-rail to preserve signal swing characteristics in the application.

Supply Voltage Range: The substitute must operate within or encompass the 4.75 V to 5.25 V supply span of the original part. Substitutes with wider supply ranges are acceptable if the minimum and maximum operating points include the original specification.

Output Current Capability: The substitute must deliver a minimum of 90 mA per channel to support the load requirements of the original design.

Operating Temperature Range: The substitute must support the -40°C to 85°C operating window or an extended range that encompasses these limits.

The OPA2314AQDRQ1 from Texas Instruments meets these substitution criteria through equivalent package, channel count, output type, and electrical performance envelope.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The EL5244CS-T7 is classified as obsolete, making the OPA2314AQDRQ1 a necessary alternative for new procurement and ongoing system support. The substitute part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability.

Compliance and Qualification: The OPA2314AQDRQ1 carries AEC-Q100 automotive qualification, which exceeds the standard-grade classification of the original part. This qualification provides additional reliability assurance for applications requiring automotive-grade components. The substitute is REACH Unaffected, consistent with the original part's REACH status.

Electrical Performance Trade-offs: The OPA2314AQDRQ1 exhibits lower slew rate (1.5 V/µs versus 200 V/µs) and reduced gain bandwidth product (3 MHz versus 60 MHz). These parameters are significantly lower than the original specification. Applications requiring high-speed signal processing or fast transient response may require circuit redesign or alternative component selection.

Output Current Limitation: The substitute provides 20 mA per channel output current, which is lower than the original 90 mA specification. Applications with high-impedance loads may operate within this constraint; however, designs requiring the full 90 mA output current per channel cannot use this substitute without additional output buffering stages.

Supply Current Advantage: The OPA2314AQDRQ1 operates at 150 µA total supply current, substantially lower than the 7 mA requirement of the EL5244CS-T7. This represents a 46-fold reduction in power consumption, providing significant benefit for battery-powered or power-constrained applications.

Temperature Range Extension: The substitute supports -40°C to 125°C operation, extending the upper temperature limit by 40°C beyond the original specification. This provides additional thermal margin for applications operating in elevated ambient conditions.

Frequently Asked Questions (FAQ)

Q: Can the OPA2314AQDRQ1 be used as a direct pin-for-pin replacement for the EL5244CS-T7?

A: Yes, the OPA2314AQDRQ1 is a direct pin-for-pin replacement in the 8-SOIC package. No PCB modifications are required for physical installation. However, circuit performance characteristics differ significantly due to lower slew rate, bandwidth, and output current specifications. Functional validation is required to confirm suitability for the specific application.

Q: What are the primary electrical differences between these two parts?

A: The OPA2314AQDRQ1 provides superior input offset voltage (500 µV versus 25 mV) and input bias current (2 pA versus 2 nA). However, it delivers substantially lower slew rate (1.5 V/µs versus 200 V/µs), gain bandwidth product (3 MHz versus 60 MHz), and output current per channel (20 mA versus 90 mA). The substitute consumes significantly less supply current (150 µA versus 7 mA).

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

A: The OPA2314AQDRQ1 is not suitable for high-frequency applications. With a 3 MHz gain bandwidth product and 1.5 V/µs slew rate, this device is optimized for low-frequency, low-power signal conditioning. Applications requiring the 60 MHz bandwidth and 200 V/µs slew rate of the EL5244CS-T7 require alternative component selection.

Q: What is the output current limitation of the OPA2314AQDRQ1?

A: The OPA2314AQDRQ1 provides 20 mA maximum output current per channel, compared to 90 mA for the EL5244CS-T7. Applications requiring output currents exceeding 20 mA per channel must incorporate external output buffering or select an alternative amplifier with higher output current capability.

Q: Does the OPA2314AQDRQ1 require different supply voltage levels?

A: The OPA2314AQDRQ1 operates across a wider supply range (1.8 V to 5.5 V) compared to the EL5244CS-T7 (4.75 V to 5.25 V). The substitute can operate at the original 5 V nominal supply voltage without modification. However, the lower minimum supply voltage (1.8 V) enables operation in low-voltage applications not supported by the original part.

Q: What is the automotive qualification status of the OPA2314AQDRQ1?

A: The OPA2314AQDRQ1 carries AEC-Q100 automotive qualification, indicating compliance with automotive industry reliability and quality standards. The original EL5244CS-T7 does not specify automotive qualification. This qualification enhances reliability assurance for automotive and harsh-environment applications.

Q: Are there any RoHS or environmental compliance differences?

A: The EL5244CS-T7 is RoHS non-compliant. The OPA2314AQDRQ1 is REACH Unaffected, indicating compliance with REACH chemical substance regulations. For applications subject to RoHS or REACH requirements, the OPA2314AQDRQ1 is the compliant choice.

Q: What is the moisture sensitivity level of the OPA2314AQDRQ1?

A: The OPA2314AQDRQ1 moisture sensitivity level is vendor undefined. The original EL5244CS-T7 specifies MSL 2 (1 Year). Consult the Texas Instruments datasheet or contact the supplier for specific moisture sensitivity classification and handling requirements for the substitute part.