Part A
ADA4001-2ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3781 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The ADA4062-2BRZ-RL is a viable functional replacement candidate for the ADA4001-2ARZ in many dual op-amp applications, sharing the same dual-channel topology, SOIC-8 footprint, and JFET input architecture. However, the two devices differ in supply voltage range, quiescent current, and input bias current, so the replacement should be validated against the target circuit's supply rails, power budget, and input impedance requirements before adoption.
Amplifier Channel Count
High match
Package and Pinout
High match
Supply Voltage Range
Validation required
Input Bias Current
Validation required
Parts at a glance
Part B
ADA4062-2BRZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9861 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 | ADA4001-2ARZ | ADA4062-2BRZ-RL | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET Input | JFET Input | Both are JFET-input op amps, so input bias current and input impedance characteristics are broadly comparable for high-impedance sensor interfaces. |
| Number of Channels | 2 | 2 | Channel count must match for pin-compatible substitution in dual-amplifier circuit designs. |
| Supply Voltage Range | ±4 V to ±18 V (or 8 V to 36 V single supply) | ±5 V to ±15 V (or 10 V to 30 V single supply) | The wider supply range of the ADA4001-2ARZ allows operation at higher rail voltages, which affects headroom and compatibility with the system power rails. |
| Input Offset Voltage (max) | 0.5 mV | 0.75 mV | Lower offset voltage reduces DC error in precision signal chains; the ADA4001-2ARZ offers slightly better DC accuracy. |
| Input Bias Current (typ) | 1 pA | 2 pA | Ultra-low bias current is critical for high-impedance sources such as photodiodes and pH sensors; both are excellent but the ADA4001-2ARZ is marginally lower. |
| Gain Bandwidth Product | 10 MHz | 1.5 MHz | GBW determines the achievable closed-loop bandwidth; the ADA4001-2ARZ supports significantly higher-frequency signals than the ADA4062-2BRZ-RL. |
| Slew Rate | 10 V/µs | 3 V/µs | Higher slew rate enables faster large-signal response and lower distortion at high frequencies; the ADA4001-2ARZ is roughly three times faster. |
| Input Voltage Noise Density | 16 nV/√Hz | 36 nV/√Hz | Lower voltage noise improves SNR in low-level signal amplification; the ADA4001-2ARZ is quieter by more than 6 dB. |
| Quiescent Current per Amplifier (typ) | 1.5 mA | 0.2 mA | Supply current affects power budget and thermal design; the ADA4062-2BRZ-RL is far more power-efficient for battery-powered or low-power applications. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Identical package and pinout allow direct board-level drop-in replacement without layout changes. |
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 | ADA4001-2ARZ | ADA4062-2BRZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Slew Rate | 25V/µs | 3.3V/µs |
| Gain Bandwidth Product | 16.7 MHz | 1.4 MHz |
| Current - Input Bias | 20 pA | 2 pA |
| Voltage - Input Offset | 500 µV | 500 µV |
| Supply Current | 2mA (x2 Channels) | 165µA (x2 Channels) |
| Current - Output / Channel | 50 mA | 20 mA |
| Voltage - Supply Span(Min) | 10 V | 8 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 |
| Output Type | Rail-to-Rail | - |
| -3 dB Bandwidth | 10.3 MHz | - |
Frequently asked questions
What are the primary differences between the ADA4001-2ARZ and the ADA4062-2BRZ-RL?
The ADA4001-2ARZ is a dual, low-noise, low-bias-current JFET-input operational amplifier supplied in an 8-lead SOIC package. The ADA4062-2BRZ-RL is a dual, low-power, low-input-bias-current JFET-input op amp supplied in an 8-lead SOIC package on tape and reel. The ADA4001-2 is optimized for lower voltage noise, while the ADA4062-2 is optimized for lower supply current and lower input bias current.
Are the ADA4001-2ARZ and ADA4062-2BRZ-RL pin-compatible?
Yes. Both devices are dual operational amplifiers in the standard 8-lead SOIC (SOIC_N) package with the conventional dual op amp pinout, so they are pin-compatible at the package level. Electrical differences must still be validated for the target design.
How do the input bias currents of the two devices compare?
Both are JFET-input amplifiers with very low input bias current. The ADA4062-2 is specified with lower typical input bias current than the ADA4001-2, making it preferable for very high source-impedance applications. Exact limits should be confirmed against the respective Analog Devices datasheets.
Which device offers lower voltage noise?
The ADA4001-2ARZ is specified with lower voltage noise density than the ADA4062-2BRZ-RL, making it the better choice for low-noise signal-conditioning front ends. The ADA4062-2 trades higher noise for lower supply current.
How do the supply current requirements differ?
The ADA4062-2BRZ-RL is a low-power device with lower typical supply current per amplifier than the ADA4001-2ARZ. Designs with tight power budgets should favor the ADA4062-2, while noise-sensitive designs should favor the ADA4001-2.
What does the -RL suffix on the ADA4062-2BRZ-RL indicate?
The -RL suffix denotes tape-and-reel packaging for automated assembly. The ADA4001-2ARZ is supplied in standard tube or tray packaging. Both are the same 8-lead SOIC package; only the shipping format differs.
Can the ADA4062-2BRZ-RL be used as a drop-in replacement for the ADA4001-2ARZ?
Because both are dual JFET-input op amps in the same 8-lead SOIC package with the same pinout, a drop-in replacement is possible only after verifying that the ADA4062-2's lower supply current, higher voltage noise, and different bandwidth and slew-rate specifications meet the target design requirements.
Which device is better suited for high-impedance sensor interfaces?
The ADA4062-2BRZ-RL is generally better suited for high-impedance sensor interfaces because of its lower input bias current, which reduces offset errors across high source impedances. The ADA4001-2ARZ remains preferable where lower voltage noise dominates the error budget.