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ADA4062-2ARMZ-RL Equivalent & Substitute Parts
Part Overview
The ADA4062-2ARMZ-RL is a J-FET input operational amplifier manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) device in an 8-MSOP surface mount package. This component is classified as a linear amplifier and is currently in active product status with 749 units in stock. The ADA4062-2ARMZ-RL is specified for applications requiring low input bias current and low input offset voltage characteristics inherent to J-FET amplifier topology. Substitute parts are identified to provide design flexibility when the primary part is unavailable, when alternative packaging formats are required, or when different thermal or supply voltage specifications better match application requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | — |
| Number of Circuits | 2 | — |
| Slew Rate | 3.3 | V/µs |
| Gain Bandwidth Product | 1.4 | MHz |
| Current - Input Bias | 2 | pA |
| Voltage - Input Offset | 750 | µV |
| Current - Supply (per channel) | 165 | µA |
| Current - Output / Channel | 20 | mA |
| Voltage - Supply Span (Min) | 8 | V |
| Voltage - Supply Span (Max) | 36 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package / Case | 8-MSOP | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the ADA4062-2ARMZ-RL are identified based on the following substitution criteria:
Primary Substitution Parameters:
- Number of circuits: 2 (dual-channel configuration)
- Mounting type: Surface mount
- Package compatibility: 8-MSOP or 8-TSSOP footprint
- Supply voltage range overlap: Minimum 8 V to 36 V span
- Operating temperature range: Minimum coverage of -40°C to 125°C
- Product status: Active
Secondary Compatibility Factors:
- Gain bandwidth product: 700 kHz to 1.4 MHz range
- Input bias current: Acceptable range for general-purpose and J-FET applications
- Input offset voltage: Within acceptable tolerance for signal conditioning applications
- Output current capability: Minimum 20 mA per channel
The substitute parts listed are general-purpose operational amplifiers (LM258 and LM2904 series variants) that meet the core functional requirements of dual-channel, surface-mount, 8-pin packages with overlapping supply voltage and temperature specifications. These parts differ from the ADA4062-2ARMZ-RL in amplifier topology (general-purpose versus J-FET), which results in different input bias current and offset voltage characteristics. Substitution is valid when application requirements permit these parameter variations.
Parameter Comparison
| Parameter | ADA4062-2ARMZ-RL | LM258AWYPT | LM258DGKR | LM258DMR2G | LM258PT | LM258WYPT | LM258YPT | LM2904ADMR2G | LM2904PT | LM2904QM8-13 | LM2904ST |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices | STMicroelectronics | Texas Instruments | onsemi | STMicroelectronics | STMicroelectronics | STMicroelectronics | onsemi | Rohm Semiconductor | Diodes Incorporated | Rohm Semiconductor |
| Amplifier Type | J-FET | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 3.3 | 0.6 | 0.3 | — | 0.6 | 0.6 | 0.6 | — | 0.3 | 0.3 | 0.3 |
| Gain Bandwidth Product (MHz) | 1.4 | 1.1 | 0.7 | 1.0 | 1.1 | 1.1 | 1.1 | 1.0 | 0.8 | 0.7 | 0.7 |
| Current - Input Bias (nA/pA) | 2 pA | 20 nA | 20 nA | 45 nA | 20 nA | 20 nA | 20 nA | 45 nA | 20 nA | 20 nA | 20 nA |
| Voltage - Input Offset (mV) | 0.75 | 1.0 | 3.0 | 2.0 | 5.0 | 2.0 | 5.0 | 2.0 | 1.0 | 2.0 | 1.0 |
| Current - Supply (µA) | 165 (x2) | 700 | 500 (x2) | 800 (x2) | 700 (x2) | 700 | 700 (x2) | 800 (x2) | 600 | 700 (x2) | 600 |
| Current - Output / Channel (mA) | 20 | 60 | 40 | 40 | 40 | 60 | 40 | 40 | 30 | 40 | 30 |
| Voltage - Supply Span Min (V) | 8 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 |
| Voltage - Supply Span Max (V) | 36 | 30 | 32 | 32 | 30 | 30 | 30 | 26 | 32 | 36 | 32 |
| Operating Temperature (°C) | -40 to 125 | -40 to 105 | -25 to 85 | -25 to 85 | -40 to 105 | -40 to 105 | -40 to 105 | -40 to 85 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package / Case | 8-MSOP | 8-TSSOP | 8-VSSOP | 8-MSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-MSOP | 8-TSSOP | 8-MSOP | 8-TSSOP / 8-MSOP |
| Mounting Type | Surface Mount | Surface Mount | 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 | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitutes with Full Temperature Range Coverage (-40°C to 125°C):
The LM2904PT, LM2904QM8-13, and LM2904ST provide the widest operating temperature range matching the ADA4062-2ARMZ-RL specification of -40°C to 125°C. These parts are suitable for applications requiring extended temperature operation. The LM2904QM8-13 additionally supports the full supply voltage range of 2 V to 36 V, providing the broadest supply compatibility.
Automotive-Qualified Substitutes:
The LM258AWYPT, LM258PT, LM258WYPT, LM258YPT, and LM2904QM8-13 carry AEC-Q100 automotive qualification. These parts are appropriate for applications requiring automotive-grade component certification.
Package-Specific Selections:
For direct 8-MSOP package compatibility, select LM258DMR2G, LM2904ADMR2G, LM2904QM8-13, or LM2904ST. For 8-TSSOP package applications, LM258AWYPT, LM258PT, LM258WYPT, LM258YPT, LM2904PT, or LM2904ST are available.
Supply Voltage Considerations:
Applications requiring the full 8 V to 36 V supply range of the ADA4062-2ARMZ-RL should select LM2904QM8-13, which supports 2 V to 36 V. All other substitute parts support minimum 3 V supplies, which may limit use in 8 V minimum applications unless dual supply configurations are employed.
Input Bias Current Sensitivity:
The ADA4062-2ARMZ-RL exhibits exceptionally low input bias current (2 pA) due to J-FET topology. General-purpose substitute parts exhibit input bias currents of 20 nA to 45 nA. Applications sensitive to input bias current effects require circuit redesign or continued use of the ADA4062-2ARMZ-RL.
Frequently Asked Questions (FAQ)
Q: Can I substitute an LM258 series part for the ADA4062-2ARMZ-RL in any application?
A: Substitution is valid only when application requirements permit the differences in amplifier topology. The ADA4062-2ARMZ-RL is a J-FET amplifier with 2 pA input bias current, while LM258 parts are general-purpose amplifiers with 20 nA input bias current. Applications requiring ultra-low input bias current or high input impedance must retain the ADA4062-2ARMZ-RL. Applications tolerant of higher input bias current can use LM258 substitutes.
Q: What is the difference between 8-MSOP and 8-TSSOP packages?
A: Both are 8-pin surface mount packages with different physical dimensions. The 8-MSOP has a 3.00 mm width, while the 8-TSSOP has a 4.40 mm width. PCB layout and footprint design must match the selected package. Parts are not interchangeable on the same PCB without layout modification.
Q: Which substitute part has the lowest input offset voltage?
A: The LM2904PT and LM2904ST both specify 1.0 mV input offset voltage, matching the low offset of the ADA4062-2ARMZ-RL (0.75 mV). The LM258AWYPT also specifies 1.0 mV. Other parts range from 2.0 mV to 5.0 mV.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the ADA4062-2ARMZ-RL compliance status.
Q: What is the maximum operating temperature for each substitute?
A: LM2904PT, LM2904QM8-13, and LM2904ST support -40°C to 125°C, matching the ADA4062-2ARMZ-RL. LM258AWYPT, LM258PT, LM258WYPT, and LM258YPT support -40°C to 105°C. LM258DGKR and LM258DMR2G support only -25°C to 85°C, limiting use in extended temperature applications.
Q: Which substitute parts are automotive qualified?
A: LM258AWYPT, LM258PT, LM258WYPT, LM258YPT, and LM2904QM8-13 carry AEC-Q100 automotive qualification. Other parts do not list automotive qualification.
Q: Can I use an LM2904 part where an LM258 is specified?
A: LM2904 and LM258 are functionally equivalent dual operational amplifiers with similar electrical characteristics. Both are general-purpose amplifiers in 2-circuit configurations. Substitution between LM2904 and LM258 series is valid when package and temperature specifications are compatible.
Q: What is the minimum supply voltage for each part?
A: The ADA4062-2ARMZ-RL requires minimum 8 V. Most substitute parts operate at minimum 3 V, except LM2904QM8-13, which operates at minimum 2 V. Applications requiring 8 V minimum operation must select parts supporting this specification or use dual supply configurations.
Q: Which substitute has the highest slew rate?
A: The ADA4062-2ARMZ-RL has the highest slew rate at 3.3 V/µs. Substitute parts range from 0.3 V/µs to 0.6 V/µs. Applications requiring high-speed signal conditioning may require the ADA4062-2ARMZ-RL.
Q: Are there packaging differences I should consider?
A: Yes. The ADA4062-2ARMZ-RL is supplied in Tape & Reel (TR) format. Substitute parts are available in both Cut Tape (CT) and Tape & Reel formats. Verify packaging format matches procurement and assembly requirements.
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