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EL5191CSZ Equivalent & Substitute Parts
Part Overview
The EL5191CSZ is a current feedback amplifier manufactured by Renesas Electronics Corporation, housed in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design support and production requirements. The EL5191CSZ delivers a 1 GHz bandwidth with a 2800 V/µs slew rate, suitable for high-speed signal conditioning applications. Equivalent parts must maintain compatibility across electrical performance parameters, mechanical packaging, and thermal operating ranges.
Substiute Parts
Key Parameters
| Parameter | EL5191CSZ Value | Unit |
|---|---|---|
| Amplifier Type | Current Feedback | — |
| Number of Circuits | 1 | — |
| Slew Rate | 2800 | V/µs |
| -3dB Bandwidth | 1000 | MHz |
| Current - Input Bias | 40 | µA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 9 | mA |
| Current - Output / Channel | 120 | mA |
| Voltage - Supply Span (Min) | 5 | V |
| Voltage - Supply Span (Max) | 10 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 2 (1 Year) | — |
Substitute Part Grouping Explanation
Substitution of the EL5191CSZ is determined by the following critical parameters: amplifier topology (current feedback), single-circuit configuration, 8-SOIC package geometry, surface mount compatibility, and operating temperature range (-40°C to 85°C). All substitute parts must maintain the same package footprint and mounting type to ensure mechanical and electrical compatibility with existing printed circuit board designs.
The substitute parts are grouped into two categories based on performance alignment:
Category 1: Direct Performance Equivalents — Parts maintaining comparable slew rate and bandwidth characteristics within the operational envelope of the EL5191CSZ.
Category 2: Enhanced Performance Alternatives — Parts offering superior electrical performance while maintaining package and thermal compatibility, suitable for applications requiring higher bandwidth or faster slew rates.
All substitute parts listed are manufactured by Texas Instruments and carry active product status, ensuring long-term availability and supply chain continuity. Compliance certifications (RoHS3, REACH Unaffected, EAR99) are consistent across all alternatives.
Parameter Comparison
| Parameter | EL5191CSZ | OPA683ID | OPA683IDR | OPA684ID | OPA684IDR | OPA691ID | OPA691IDR | OPA695ID | OPA695IDR | Unit |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Renesas | TI | TI | TI | TI | TI | TI | TI | TI | — |
| Amplifier Type | Current Feedback | Current Feedback | Current Feedback | Current Feedback | Current Feedback | Current Feedback | Current Feedback | Current Feedback | Current Feedback | — |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — |
| Slew Rate | 2800 | 540 | 540 | 820 | 820 | 2100 | 2100 | 4300 | 4300 | V/µs |
| -3dB Bandwidth | 1000 | 200 | 200 | 210 | 210 | 280 | 280 | 1700 | 1700 | MHz |
| Current - Input Bias | 40 | 3 | 3 | 5 | 5 | 15 | 15 | 20 | 20 | µA |
| Voltage - Input Offset | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 0.5 | 0.5 | 0.3 | 0.3 | mV |
| Current - Supply | 9 | 0.94 | 0.94 | 1.7 | 1.7 | 5.1 | 5.1 | 12.9 | 12.9 | mA |
| Current - Output / Channel | 120 | 150 | 150 | 160 | 160 | 190 | 190 | 120 | 120 | mA |
| Voltage - Supply Span (Min) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | V |
| Voltage - Supply Span (Max) | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | V |
| Operating Temperature | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | °C |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | — |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) | — |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Last Time Buy | Active | — |
Engineering Selection Recommendations
OPA691ID / OPA691IDR — These parts provide the closest performance alignment to the EL5191CSZ within the active product portfolio. The OPA691 series delivers a 2100 V/µs slew rate and 280 MHz bandwidth, maintaining operational compatibility with the original design while offering improved input offset voltage (0.5 mV versus 1 mV). Both tube and tape-and-reel packaging options are available. The OPA691IDR variant in tape-and-reel format provides 8406 units in current inventory, supporting high-volume production requirements.
OPA695ID / OPA695IDR — These parts deliver the highest performance specifications within the substitute group, featuring a 4300 V/µs slew rate and 1.7 GHz bandwidth. The OPA695IDR maintains active product status with 8509 units in inventory. This option is suitable for applications requiring enhanced bandwidth performance beyond the original EL5191CSZ specification. Note that OPA695ID carries Last Time Buy status; OPA695IDR is the recommended long-term selection.
OPA684ID / OPA684IDR — These parts offer intermediate performance with 820 V/µs slew rate and 210 MHz bandwidth. The OPA684IDR variant provides 5822 units in inventory and represents a balanced alternative for applications with moderate performance requirements.
OPA683ID / OPA683IDR — These parts deliver the lowest slew rate (540 V/µs) and bandwidth (200 MHz) among the substitute options. Selection is appropriate only for applications where the original EL5191CSZ performance specifications exceed actual circuit requirements.
All substitute parts maintain identical thermal operating range (-40°C to 85°C), RoHS3 compliance, and 8-SOIC package geometry. Supply voltage range extends to 12 V maximum across all substitutes, providing additional design margin compared to the EL5191CSZ 10 V maximum specification.
Frequently Asked Questions (FAQ)
Q: Can OPA691ID directly replace EL5191CSZ in existing circuit designs?
A: Yes. The OPA691ID maintains identical 8-SOIC package geometry, surface mount compatibility, and thermal operating range. Pin-for-pin compatibility is established through the current feedback amplifier topology and single-circuit configuration. The 2100 V/µs slew rate and 280 MHz bandwidth provide performance within the operational envelope of the original design.
Q: What is the primary difference between OPA691ID and OPA691IDR?
A: Both parts are electrically identical. OPA691ID is supplied in tube packaging, while OPA691IDR is supplied in tape-and-reel format. Selection depends on assembly process requirements and production volume. Tape-and-reel packaging (OPA691IDR) is standard for automated pick-and-place assembly operations.
Q: Why does the EL5191CSZ specify a maximum supply voltage of 10 V while substitutes support 12 V?
A: The substitute parts are designed with extended voltage rating capability. Circuits designed for the EL5191CSZ 10 V maximum specification operate within the safe operating area of all substitute parts. The extended 12 V rating provides additional design margin but does not affect compatibility with existing 10 V supply designs.
Q: Is OPA695ID suitable as a substitute despite Last Time Buy status?
A: OPA695ID carries Last Time Buy status, indicating limited future availability. OPA695IDR is the recommended alternative, offering identical electrical specifications with active product status and 8509 units in current inventory. For new designs, OPA695IDR ensures long-term supply continuity.
Q: How do input bias current differences affect circuit performance?
A: The EL5191CSZ specifies 40 µA input bias current, while substitutes range from 3 µA (OPA683) to 20 µA (OPA695). Lower input bias current reduces DC offset errors in transimpedance and transresistance configurations. Circuit designs compensating for the original 40 µA specification operate within acceptable tolerance with any substitute part.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed carry RoHS3 compliance certification, matching the environmental compliance status of the EL5191CSZ. REACH Unaffected status is consistent across all alternatives.
Q: What packaging options are available for high-volume production?
A: OPA691IDR, OPA684IDR, OPA683IDR, and OPA695IDR are supplied in tape-and-reel format, supporting automated assembly processes. Inventory levels range from 1990 to 8509 units, accommodating production requirements from prototype through volume manufacturing.
Q: Can OPA693ID be used as a substitute?
A: OPA693ID is classified as a video amplifier buffer rather than a current feedback amplifier. While it shares the 8-SOIC package and surface mount compatibility, the functional topology differs from the EL5191CSZ. Selection of OPA693ID is appropriate only for buffer applications, not for current feedback amplifier circuits.
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