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OP484ESZ Equivalent & Substitute Parts
Part Overview
The OP484ESZ is a general-purpose operational amplifier manufactured by Analog Devices Inc., 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 OP484ESZ operates across a wide supply voltage range of 3V to 36V and supports operating temperatures from -40°C to 125°C, making it suitable for industrial and commercial applications requiring multiple amplification stages in a compact form factor.
Substitute parts are identified when equivalent functional performance can be achieved within the constraints of the application while maintaining compatibility with the circuit design, PCB layout, and thermal requirements. Substitution becomes necessary due to inventory availability, supply chain considerations, or specific performance optimization for particular application requirements.
Substiute Parts
Key Parameters
| Parameter | OP484ESZ | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 36 | V |
| Operating Temperature | -40°C ~ 125°C | — |
| Slew Rate | 4 | V/µs |
| Gain Bandwidth Product | 4.25 | MHz |
| Current - Input Bias | 80 | nA |
| Voltage - Input Offset | 150 | µV |
| Current - Output / Channel | 10 | mA |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the OP484ESZ are identified based on the following critical parameters that determine functional equivalence:
Primary Substitution Criteria:
- Number of Circuits: 4 (all substitutes maintain quad-channel configuration)
- Output Type: Rail-to-Rail (all substitutes provide rail-to-rail output capability)
- Mounting Type: Surface Mount (all substitutes are surface-mount devices)
- Package Category: 14-pin SOIC or TSSOP variants (pin-compatible or functionally equivalent)
- Voltage Supply Range: Minimum 3V to maximum 30V or higher (all substitutes support the OP484ESZ operating range or subset thereof)
- Operating Temperature: -40°C to 125°C or compatible range (all substitutes support industrial temperature range)
- Product Status: Active (all substitutes are active products)
- RoHS Compliance: ROHS3 Compliant (all substitutes meet environmental standards)
Performance Parameters Considered:
- Slew Rate: 4V/µs baseline (substitutes range from 0.001V/µs to 4.6V/µs depending on application requirements)
- Gain Bandwidth Product: 4.25 MHz baseline (substitutes range from 2.7 kHz to 15.9 MHz)
- Input Bias Current: 80 nA baseline (substitutes range from 8 pA to 250 pA)
- Input Offset Voltage: 150 µV baseline (substitutes range from 60 µV to 250 µV)
- Output Current per Channel: 10 mA baseline (substitutes range from 1.5 mA to 35 mA)
Substitutes are grouped into two categories: direct package equivalents (14-SOIC) and functionally compatible alternatives (14-TSSOP). All substitutes maintain the 4-circuit general-purpose amplifier architecture with rail-to-rail output capability.
Parameter Comparison
| Parameter | OP484ESZ | ADA4084-4ARUZ | LT1496HS#PBF | LT1496IS#PBF | LT1496CS#PBF | OPA4171AQDRQ1 | Unit |
|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Texas Instruments | — |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | — |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | — |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | — |
| Slew Rate | 4 | 4.6 | 0.001 | 0.001 | 0.001 | 1.5 | V/µs |
| Gain Bandwidth Product | 4.25 | 15.9 | 2.7 | 2.7 | 2.7 | 3 | MHz / kHz |
| Current - Input Bias | 80 | 140 | 250 | 250 | 250 | 8 | nA / pA |
| Voltage - Input Offset | 150 | 60 | 200 | 200 | 200 | 250 | µV |
| Current - Output / Channel | 10 | 30 | 1.5 | 1.5 | 1.5 | 35 | mA |
| Voltage - Supply Span (Min) | 3 | 3 | 2.2 | 2.2 | 2.2 | 4.5 | V |
| Voltage - Supply Span (Max) | 36 | 30 | 36 | 36 | 36 | 36 | V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 125°C | — |
| Package / Case | 14-SOIC | 14-TSSOP | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | — |
| Mounting Type | 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 | — |
| Product Status | Active | Active | Active | Active | Active | Active | — |
Engineering Selection Recommendations
Direct Package Equivalents (14-SOIC):
The LT1496HS#PBF, LT1496IS#PBF, and LT1496CS#PBF are pin-compatible 14-SOIC devices that can be used as direct substitutes in applications where the OP484ESZ footprint is already established on the PCB. These devices maintain identical package dimensions and pinout compatibility. Selection among these three variants depends on operating temperature requirements: LT1496HS#PBF supports -40°C to 125°C, LT1496IS#PBF supports -40°C to 85°C, and LT1496CS#PBF supports 0°C to 70°C. All three are ROHS3 compliant and maintain Active product status.
The OPA4171AQDRQ1 is a 14-SOIC device from Texas Instruments that provides pin-compatible substitution with the OP484ESZ. This device includes automotive-grade qualification (AEC-Q100) and supports the full industrial temperature range of -40°C to 125°C. The OPA4171AQDRQ1 is ROHS3 compliant and maintains Active product status.
Alternative Package Configuration (14-TSSOP):
The ADA4084-4ARUZ is a 14-TSSOP package variant that provides functional equivalence to the OP484ESZ with improved performance characteristics in slew rate (4.6V/µs) and gain bandwidth product (15.9 MHz). This device requires PCB layout modification due to different package dimensions (0.173" versus 0.154" width) but maintains the same pin count and functional architecture. The ADA4084-4ARUZ is ROHS3 compliant, maintains Active product status, and supports -40°C to 125°C operating temperature.
Compliance and Certification:
All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment with the OP484ESZ. The OPA4171AQDRQ1 provides additional automotive-grade qualification for applications requiring AEC-Q100 certification. Moisture sensitivity levels vary across substitutes, with the LT1496 series offering MSL 1 (Unlimited) compared to the OP484ESZ MSL 3 (168 Hours).
Frequently Asked Questions (FAQ)
Q: Can the LT1496 series devices be used as direct replacements for the OP484ESZ without PCB modifications?
A: Yes. The LT1496HS#PBF, LT1496IS#PBF, and LT1496CS#PBF are pin-compatible 14-SOIC devices with identical package dimensions to the OP484ESZ (0.154", 3.90mm width). No PCB layout changes are required for these substitutes. Selection should be based on operating temperature requirements specific to your application.
Q: What is the primary difference between the LT1496HS#PBF, LT1496IS#PBF, and LT1496CS#PBF variants?
A: The three LT1496 variants differ in operating temperature range. The LT1496HS#PBF operates from -40°C to 125°C (industrial grade), the LT1496IS#PBF operates from -40°C to 85°C (intermediate grade), and the LT1496CS#PBF operates from 0°C to 70°C (commercial grade). All three maintain identical electrical performance specifications and package compatibility.
Q: Does the ADA4084-4ARUZ require PCB redesign if substituted for the OP484ESZ?
A: Yes. The ADA4084-4ARUZ uses a 14-TSSOP package (0.173", 4.40mm width) compared to the OP484ESZ 14-SOIC package (0.154", 3.90mm width). While pin count and functional architecture remain equivalent, PCB footprint and layout modifications are necessary. This substitution is appropriate when performance optimization or inventory constraints justify redesign effort.
Q: What are the key performance differences between the OP484ESZ and ADA4084-4ARUZ?
A: The ADA4084-4ARUZ provides higher slew rate (4.6V/µs versus 4V/µs) and significantly higher gain bandwidth product (15.9 MHz versus 4.25 MHz). The ADA4084-4ARUZ also offers lower input offset voltage (60 µV versus 150 µV) and higher output current per channel (30 mA versus 10 mA). These improvements make the ADA4084-4ARUZ suitable for applications requiring faster signal processing or higher output drive capability.
Q: Is the OPA4171AQDRQ1 suitable for automotive applications?
A: Yes. The OPA4171AQDRQ1 carries automotive-grade qualification (AEC-Q100) and is designed for automotive and industrial applications. It maintains pin compatibility with the OP484ESZ in a 14-SOIC package and supports the full industrial temperature range of -40°C to 125°C. However, the minimum supply voltage is 4.5V compared to the OP484ESZ minimum of 3V.
Q: What is the moisture sensitivity level (MSL) difference between the OP484ESZ and substitute parts?
A: The OP484ESZ has MSL 3 (168 Hours), requiring controlled storage conditions. The LT1496 series devices have MSL 1 (Unlimited), offering superior moisture resistance and simplified storage requirements. The ADA4084-4ARUZ also has MSL 1 (Unlimited). The OPA4171AQDRQ1 has MSL 3 (168 Hours), matching the OP484ESZ. MSL rating affects component shelf life and handling procedures during manufacturing.
Q: Can the OP484ESZ be substituted with the LT1496CS#PBF in industrial temperature applications?
A: No. The LT1496CS#PBF operates only from 0°C to 70°C, which does not cover the full industrial temperature range of -40°C to 125°C supported by the OP484ESZ. For industrial applications requiring extended temperature range, use the LT1496HS#PBF (-40°C to 125°C) or LT1496IS#PBF (-40°C to 85°C) instead.
Q: What is the supply voltage compatibility between the OP484ESZ and substitute parts?
A: The OP484ESZ operates from 3V to 36V. The LT1496 series operates from 2.2V to 36V (wider minimum range). The ADA4084-4ARUZ operates from 3V to 30V (narrower maximum range). The OPA4171AQDRQ1 operates from 4.5V to 36V (higher minimum voltage). Verify that your application supply voltage falls within the operating range of the selected substitute.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed (ADA4084-4ARUZ, LT1496HS#PBF, LT1496IS#PBF, LT1496CS#PBF, and OPA4171AQDRQ1) are ROHS3 compliant, matching the environmental compliance status of the OP484ESZ.
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