Part A
ADA4004-4ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4895 Stückzahl
- Package
- SOIC-14
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Not a drop-in replacement
The ADA4004-4ARZ and ADA4062-2BRZ-RL are not functionally interchangeable: the ADA4004-4ARZ is a quad low-noise precision bipolar op-amp in a 14-lead SOIC package, while the ADA4062-2BRZ-RL is a dual low-power JFET-input op-amp in an 8-lead SOIC package. The differing channel count, package footprint, input bias current, and supply current characteristics make direct substitution impractical without circuit redesign.
Different channel count
Different package footprint
Different input bias current
Different supply current
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 | ADA4004-4ARZ | ADA4062-2BRZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 | 2 | Channel count determines how many independent signal paths can be processed in one package, directly affecting circuit architecture and board space. |
| Input Offset Voltage (Max) | 125 µV | 750 µV | Lower offset voltage improves DC precision; the ADA4004 is significantly more precise for high-accuracy signal conditioning. |
| Input Bias Current (Typ) | 40 nA | 2 pA | The ADA4062 uses JFET inputs with extremely low bias current, making it preferable for high-impedance sensor and photodiode applications. |
| Gain Bandwidth Product | 12 MHz | 1.4 MHz | GBW sets the achievable closed-loop bandwidth and small-signal speed; the ADA4004 supports wider-bandwidth signal paths. |
| Slew Rate | 2.7 V/µs | 0.5 V/µs | Higher slew rate enables faster large-signal response and reduces distortion at higher frequencies. |
| Input Voltage Noise Density | 1.8 nV/√Hz | 36 nV/√Hz | Lower voltage noise is critical for low-level signal amplification; the ADA4004 is far superior for precision low-noise designs. |
| Supply Voltage Range | ±5 V to ±15 V | ±5 V to ±15 V | Both support the same dual-supply range, allowing similar power supply design and rail headroom considerations. |
| Quiescent Current per Amplifier (Typ) | 1.7 mA | 0.25 mA | The ADA4062 draws much less supply current, making it better suited for power-sensitive or battery-operated systems. |
| Package | 14-Lead SOIC | 8-Lead SOIC | Different package footprints and pin counts affect PCB layout and are not drop-in interchangeable. |
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 | ADA4004-4ARZ | ADA4062-2BRZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | J-FET |
| Number of Circuits | 4 | 2 |
| Slew Rate | 2.7V/µs | 3.3V/µs |
| Gain Bandwidth Product | 12 MHz | 1.4 MHz |
| Current - Input Bias | 40 nA | 2 pA |
| Voltage - Input Offset | 40 µV | 500 µV |
| Supply Current | - | 165µA (x2 Channels) |
| Current - Output / Channel | 10 mA | 20 mA |
| Voltage - Supply Span(Min) | 10 V | 8 V |
| Voltage - Supply Span(Max) | 30 V | 36 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | iPolar® | - |
Frequently asked questions
What are the key differences between the ADA4004-4ARZ and ADA4062-2BRZ-RL?
The ADA4004-4ARZ is a quad, low-noise, low-offset-voltage operational amplifier, while the ADA4062-2BRZ-RL is a dual, low-power, JFET-input operational amplifier. The ADA4004-4ARZ offers four amplifiers per package with very low voltage noise and offset voltage, making it suited for precision signal conditioning. The ADA4062-2BRZ-RL provides two JFET-input amplifiers with low input bias current and low power consumption, making it suited for high-impedance sensor interfaces. They differ in channel count, input stage technology, and target application profile.
Are the ADA4004-4ARZ and ADA4062-2BRZ-RL pin-compatible?
No. The ADA4004-4ARZ is a quad amplifier in a 14-lead SOIC package, while the ADA4062-2BRZ-RL is a dual amplifier in an 8-lead SOIC package. The package sizes, pin counts, and pin functions differ, so they are not drop-in replacements for each other.
How do the input bias currents of the ADA4004-4ARZ and ADA4062-2BRZ-RL compare?
The ADA4062-2BRZ-RL uses a JFET input stage, which provides very low input bias current, typically in the picoampere range, making it suitable for high-impedance sources. The ADA4004-4ARZ uses a bipolar input stage with input bias current in the nanoampere range. For applications requiring extremely low input bias current, the ADA4062-2BRZ-RL is the more appropriate choice.
Which part is better suited for low-noise precision applications?
The ADA4004-4ARZ is designed for low-noise, low-offset-voltage precision applications, with typical voltage noise density in the single-digit nV/√Hz range and low offset voltage. The ADA4062-2BRZ-RL is optimized for low power and low input bias current rather than ultralow voltage noise. For precision low-noise signal conditioning, the ADA4004-4ARZ is the better fit.
How do the power consumption characteristics of these two amplifiers differ?
The ADA4062-2BRZ-RL is a low-power JFET-input dual amplifier designed for battery-powered and portable applications, with low supply current per amplifier. The ADA4004-4ARZ, as a quad precision bipolar amplifier, typically draws more supply current per amplifier. Designs prioritizing minimal power consumption should evaluate the ADA4062-2BRZ-RL, while the ADA4004-4ARZ targets precision performance.
Can the ADA4062-2BRZ-RL replace the ADA4004-4ARZ in an existing quad-amplifier design?
No. The ADA4062-2BRZ-RL contains only two amplifiers, whereas the ADA4004-4ARZ contains four. In addition, the package pinouts differ (8-lead versus 14-lead SOIC). A direct replacement is not possible; the design would require layout changes and validation of electrical specifications against the manufacturer datasheets.
What are the typical supply voltage ranges for the ADA4004-4ARZ and ADA4062-2BRZ-RL?
Both devices are designed for dual-supply operation commonly used in analog signal chains. The ADA4004-4ARZ operates on a dual supply in the range of ±5 V to ±15 V, while the ADA4062-2BRZ-RL operates on a lower dual-supply range suitable for low-power systems. Exact limits should be confirmed against the respective manufacturer datasheets before use.
Which device should be selected for high-impedance sensor interfacing?
The ADA4062-2BRZ-RL is preferable for high-impedance sensor interfacing because its JFET input stage provides very low input bias current, minimizing loading and error. The ADA4004-4ARZ, with bipolar inputs and higher bias current, is better suited to low-noise precision amplification where source impedance is moderate. Selection should be validated against the sensor's source impedance and the datasheet specifications.