Part A
ADA4062-2ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6529 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The ADA4062-2ARZ and ADA4004-4ARZ-RL differ in channel count, package footprint, supply voltage range, and quiescent current, so the ADA4004-4ARZ-RL cannot serve as a direct drop-in substitute for the ADA4062-2ARZ without circuit and layout redesign.
Different channel count
Different package footprint
Different supply voltage range
Different quiescent current
Parts at a glance
Part B
ADA4004-4ARZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8634 PCS
- Package
- SOIC-14
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
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 | ADA4004-4ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 4 | Determines how many independent signal channels are available in a single package; a direct constraint on circuit topology and board layout. |
| Input Offset Voltage (max) | 250 µV | 125 µV | Lower offset voltage improves DC accuracy and reduces output error in precision signal-conditioning applications. |
| Input Bias Current (typ) | 0.5 pA | 40 nA | Very low bias current is critical for high-impedance sensor interfaces and precision integrators; a large difference affects input loading and error. |
| Gain Bandwidth Product | 1.4 MHz | 12 MHz | Sets the achievable closed-loop bandwidth and speed; a much higher GBW enables faster signal processing and wider-bandwidth filters. |
| Slew Rate | 0.5 V/µs | 2.8 V/µs | Limits large-signal transient response and full-power bandwidth; higher slew rate supports faster, larger output swings without distortion. |
| Supply Voltage Range | ±5 V to ±15 V (10 V to 30 V) | ±5 V to ±15 V (10 V to 30 V) | Defines compatibility with the system power rails; matching ranges allow drop-in use in the same supply environment. |
| Input Voltage Noise Density (1 kHz) | 36 nV/√Hz | 6 nV/√Hz | Lower voltage noise improves SNR in low-level signal amplification; a significant difference affects precision and dynamic range. |
| Quiescent Current per Amplifier (typ) | 0.2 mA | 1.7 mA | Affects total power consumption and thermal budget; lower quiescent current is preferred for battery-powered or power-sensitive designs. |
| Package | 8-Lead SOIC | 14-Lead SOIC | Footprint and pin count must match the PCB layout; different packages require board redesign and cannot be directly substituted. |
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 | ADA4004-4ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | - | iPolar® |
| Part Status | Active | Active |
| Amplifier Type | J-FET | General Purpose |
| Number of Circuits | 2 | 4 |
| Slew Rate | 3.3V/µs | 2.7V/µs |
| Gain Bandwidth Product | 1.4 MHz | 12 MHz |
| Current - Input Bias | 2 pA | 40 nA |
| Voltage - Input Offset | 750 µV | 40 µV |
| Current - Output / Channel | 20 mA | 10 mA |
| Voltage - Supply Span(Min) | 8 V | 10 V |
| Voltage - Supply Span(Max) | 36 V | 30 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Supply Current | 165µA (x2 Channels) | - |
Frequently asked questions
What are the primary differences between the ADA4062-2ARZ and the ADA4004-4ARZ-RL?
The ADA4062-2ARZ is a dual-channel, low-power JFET-input operational amplifier, while the ADA4004-4ARZ-RL is a quad-channel, precision bipolar-input operational amplifier. The ADA4062-2ARZ is optimized for low input bias current and low power consumption, whereas the ADA4004-4ARZ-RL is optimized for very low offset voltage, low offset voltage drift, and low voltage noise.
How do the input bias currents of the ADA4062-2ARZ and ADA4004-4ARZ-RL compare?
The ADA4062-2ARZ, with its JFET input stage, features extremely low input bias current, typically in the picoampere range. The ADA4004-4ARZ-RL, using a bipolar input stage, has a higher input bias current, typically in the nanoampere range. The ADA4062-2ARZ is therefore preferable for high-impedance source applications.
Which device offers lower offset voltage and offset voltage drift?
The ADA4004-4ARZ-RL is a precision bipolar op amp with a very low typical offset voltage and low offset voltage drift, making it suitable for DC precision applications. The ADA4062-2ARZ has a higher offset voltage and drift specification than the ADA4004-4ARZ-RL. For applications requiring tight DC accuracy over temperature, the ADA4004-4ARZ-RL is the more appropriate choice.
How do the packages and channel counts differ between these two parts?
The ADA4062-2ARZ is a dual op amp supplied in an 8-lead SOIC package. The ADA4004-4ARZ-RL is a quad op amp supplied in a 14-lead SOIC package. The different channel counts and pin counts mean the two devices are not pin-compatible and cannot be dropped into the same PCB footprint.
Which part is better suited for low-power, high-impedance sensor interfaces?
The ADA4062-2ARZ is generally better suited for low-power, high-impedance sensor interfaces because its JFET input stage provides very low input bias current and its supply current per amplifier is low. The ADA4004-4ARZ-RL, while more precise in DC terms, draws more supply current per amplifier and has higher input bias current, which can introduce errors with high-impedance sources.
Can the ADA4062-2ARZ and ADA4004-4ARZ-RL be used interchangeably in an existing design?
No. The two devices differ in channel count (dual versus quad), package pin count (8-lead versus 14-lead SOIC), input stage type (JFET versus bipolar), and key specifications such as input bias current, offset voltage, and supply current. A direct substitution is not possible without redesigning the PCB footprint and revalidating the circuit against the manufacturer datasheets.
How do the supply current requirements of the ADA4062-2ARZ and ADA4004-4ARZ-RL compare?
The ADA4062-2ARZ is a low-power dual op amp with a low supply current per amplifier, making it suitable for battery-powered and portable applications. The ADA4004-4ARZ-RL is a quad precision op amp that draws more supply current per amplifier. For strict power budgets, the ADA4062-2ARZ is the lower-power option, though the total channel count difference must also be considered.
Which device is more suitable for precision DC instrumentation applications?
The ADA4004-4ARZ-RL is more suitable for precision DC instrumentation because of its low offset voltage, low offset voltage drift, and low voltage noise, which are characteristic of its precision bipolar design. The ADA4062-2ARZ is better suited to applications prioritizing low input bias current and low power rather than tight DC offset performance.