Part A
ADA4062-2ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6529 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The ADA4062-2ARZ and ADA4001-2ARZ-RL are both dual low-power JFET-input operational amplifiers in the same 8-lead SOIC package, making them a viable functional replacement candidate in many designs. However, the ADA4062-2ARZ offers a wider supply voltage range and higher bandwidth, while the ADA4001-2ARZ-RL provides lower input bias current and lower noise. Designers should validate supply voltage headroom, AC performance, and input bias current requirements against the target application before substituting.
Package Type
High match
Amplifier Type
High match
Supply Voltage Range
Validation required
Input Bias Current
Validation required
Parts at a glance
Part B
ADA4001-2ARZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6269 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADA4062-2ARZ | ADA4001-2ARZ-RL | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET input operational amplifier | JFET input operational amplifier | Both are JFET-input op amps, so input bias current and impedance behavior are broadly similar, but the specific input stage design affects noise and drift performance. |
| Number of Channels | 2 | 2 | Channel count must match for direct board-level substitution in dual-amplifier circuits. |
| Supply Voltage Range | ±5 V to ±15 V (dual supply) | ±4.5 V to ±18 V (dual supply) | The wider supply range of the ADA4001-2 allows operation at higher rail voltages, which can matter in systems running at ±15 V or above. |
| Input Bias Current | Typically a few pA (JFET input) | Typically a few pA (JFET input) | Very low input bias current is critical for high-impedance sensor and precision applications; both parts are suitable but exact values differ slightly. |
| Input Offset Voltage | Low offset (precision grade) | Low offset (precision grade) | Offset voltage directly affects DC accuracy; both are precision JFET op amps, but the specified maximum offset differs between the two parts. |
| Gain Bandwidth Product | Approximately 1.5 MHz | Approximately 1.8 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain; a higher GBW allows faster signal processing. |
| Slew Rate | Low slew rate (precision JFET) | Low slew rate (precision JFET) | Slew rate limits large-signal response speed; both are low-power precision parts, but exact slew rates differ and affect transient performance. |
| Package / Mounting | 8-lead SOIC (surface mount) | 8-lead SOIC (surface mount, tape and reel) | Package and pinout must match for drop-in replacement; the -RL suffix indicates tape-and-reel packaging for automated assembly. |
| Operating Temperature Range | Industrial temperature range | Industrial temperature range | Temperature range must cover the application environment; both are industrial-grade, but exact limits should be verified for harsh environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADA4062-2ARZ | ADA4001-2ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | - | Rail-to-Rail |
| Slew Rate | 3.3V/µs | 25V/µs |
| Gain Bandwidth Product | 1.4 MHz | 16.7 MHz |
| -3 dB Bandwidth | - | 10.3 MHz |
| Current - Input Bias | 2 pA | 20 pA |
| Voltage - Input Offset | 750 µV | 500 µV |
| Supply Current | 165µA (x2 Channels) | 2mA (x2 Channels) |
| Current - Output / Channel | 20 mA | 50 mA |
| Voltage - Supply Span(Min) | 8 V | 10 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the ADA4062-2ARZ and the ADA4001-2ARZ-RL?
The ADA4062-2ARZ is a dual, low-power, JFET-input operational amplifier, while the ADA4001-2ARZ-RL is a dual, low-noise, precision bipolar-input operational amplifier. The ADA4062-2ARZ is optimized for low input bias current and low power consumption, whereas the ADA4001-2ARZ-RL is optimized for low voltage noise and high DC precision. They are not pin-compatible substitutes without validating the differing input bias current, noise, and supply current specifications against the target design.
Are the ADA4062-2ARZ and ADA4001-2ARZ-RL pin-compatible?
Both devices are offered in an 8-lead SOIC package (the "ARZ" suffix denotes SOIC), and both use the standard dual op-amp pinout. However, pin compatibility alone does not guarantee functional interchangeability; the differing input bias current, input voltage noise, and supply current must be evaluated against the application requirements before substitution.
Which device has lower input bias current, the ADA4062-2ARZ or the ADA4001-2ARZ-RL?
The ADA4062-2ARZ, with its JFET input stage, provides significantly lower input bias current than the ADA4001-2ARZ-RL, which uses a bipolar input stage. The ADA4062-2ARZ is therefore preferable for high-impedance sensor interfaces and applications where input bias current errors must be minimized.
Which device offers lower voltage noise for precision signal conditioning?
The ADA4001-2ARZ-RL, with its bipolar input stage, offers lower input voltage noise than the JFET-input ADA4062-2ARZ. For low-noise precision signal conditioning where voltage noise dominates, the ADA4001-2ARZ-RL is the more suitable choice, provided its higher input bias current is acceptable in the circuit.
How do the supply current requirements of the ADA4062-2ARZ and ADA4001-2ARZ-RL compare?
The ADA4062-2ARZ is designed for low-power operation and typically draws lower supply current per amplifier than the ADA4001-2ARZ-RL. Designs with tight power budgets, such as battery-powered or portable instrumentation, should verify the quiescent current specifications in the respective datasheets before selecting between the two.
Can the ADA4062-2ARZ and ADA4001-2ARZ-RL operate from the same supply voltages?
Both devices are specified for dual-supply operation in the range commonly used for precision analog signal chains, but the exact minimum and maximum supply voltage limits, as well as the output swing behavior near the rails, differ between the two datasheets. The supply range and output swing requirements of the target circuit must be checked against each device's published specifications before interchange.
Which device is better suited for high-impedance sensor interfaces?
The ADA4062-2ARZ is better suited for high-impedance sensor interfaces because its JFET input stage provides very low input bias current, minimizing offset errors caused by bias current flowing through high source impedances. The ADA4001-2ARZ-RL, with its bipolar input, has higher bias current and is less ideal for such high-impedance nodes unless the resulting error is acceptable.
What does the "RL" suffix on the ADA4001-2ARZ-RL indicate?
The "RL" suffix denotes tape-and-reel packaging for the ADA4001-2ARZ, which is intended for automated assembly lines. The "ARZ" portion indicates the 8-lead SOIC package with RoHS-compliant construction. The ADA4062-2ARZ is likewise supplied in an 8-lead SOIC package, but packaging quantity and reel options should be confirmed from the manufacturer's ordering guide.