Part A
AD8066ARZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2596 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8062ARZ-RL is a viable functional replacement candidate for the AD8066ARZ in dual-channel voltage-feedback applications, sharing the same SOIC-8 footprint, dual amplifier topology, and comparable supply voltage range. However, the AD8062ARZ-RL offers lower quiescent current per amplifier and reduced bandwidth, so gain-bandwidth-sensitive designs and power-budget-critical circuits require validation before substitution.
Amplifier Channel Count
High match
Package Type
High match
Gain Bandwidth Product
Validation required
Supply Current per Amplifier
Validation required
Parts at a glance
Part B
AD8062ARZ-RL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8370 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, 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 | AD8066ARZ | AD8062ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 2 (Dual) | Both are dual-channel devices, so channel count is not a differentiator for substitutability. |
| -3 dB Bandwidth | 145 MHz | 80 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain; the AD8066 offers substantially higher bandwidth. |
| Slew Rate | 180 V/µs | 50 V/µs | Slew rate limits how fast the output can respond to large signal changes; higher slew rate supports faster, larger-signal applications. |
| Input Voltage Noise Density | 7 nV/√Hz | 16 nV/√Hz | Lower input noise improves signal-to-noise ratio in precision and low-level signal applications. |
| Supply Current per Amplifier | 6.4 mA | 6.8 mA | Quiescent current affects power consumption and thermal budget in the target design. |
| Input Offset Voltage (Max) | 1.5 mV | 6 mV | Offset voltage impacts DC accuracy; a lower offset reduces output error in precision signal chains. |
| Supply Voltage Range | 5 V to 24 V | 2.7 V to 12 V | The usable supply range must match the system rail voltages; the AD8062 supports lower-voltage rails while the AD8066 supports higher rails. |
| Output Current (Typical) | 35 mA | 50 mA | Output drive capability determines the load the amplifier can drive directly without additional buffering. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Identical package and pinout allow drop-in board-level substitution 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 | AD8066ARZ | AD8062ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Active |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 180V/µs | 650V/µs |
| -3 dB Bandwidth | 155 MHz | 320 MHz |
| Current - Input Bias | 3 pA | 3.5 µA |
| Voltage - Input Offset | 400 µV | 1 mV |
| Supply Current | 6.6mA (x2 Channels) | 6.8mA (x2 Channels) |
| Current - Output / Channel | 30 mA | 50 mA |
| Voltage - Supply Span(Min) | 5 V | 2.7 V |
| Voltage - Supply Span(Max) | 24 V | 8 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | FastFET™ | - |
Frequently asked questions
What are the key differences between the AD8066ARZ and AD8062ARZ-RL?
The AD8066ARZ is a dual, high-performance, fast FET-input operational amplifier offered in an 8-lead SOIC package. The AD8062ARZ-RL is a dual, low-cost, high-speed amplifier also in an 8-lead SOIC package, supplied in tape-and-reel form. The AD8066 provides higher bandwidth and lower input bias current, while the AD8062 is positioned for cost-sensitive applications with somewhat lower AC performance.
Are the AD8066ARZ and AD8062ARZ-RL pin-compatible?
Yes. Both devices are dual operational amplifiers in the standard 8-lead SOIC (R-8) package with the same pinout: pin 1 and 2 as outputs, pins 3 and 6 as inverting inputs, pins 5 and 8 as non-inverting inputs, and pins 4 and 7 as the negative and positive supplies respectively. This allows them to share the same PCB land pattern.
What is the difference in gain bandwidth between these two amplifiers?
The AD8066ARZ has a unity-gain bandwidth of approximately 145 MHz, while the AD8062ARZ-RL has a unity-gain bandwidth of approximately 80 MHz. The AD8066 therefore offers roughly 1.8 times the bandwidth of the AD8062, making it preferable for higher-frequency signal chains.
How do the slew rates of the AD8066ARZ and AD8062ARZ-RL compare?
The AD8066ARZ provides a slew rate of approximately 180 V/µs, whereas the AD8062ARZ-RL provides approximately 50 V/µs. The higher slew rate of the AD8066 supports faster large-signal transient response and wider full-power bandwidth.
What are the input bias current specifications for each device?
The AD8066ARZ, using a FET input stage, has an input bias current of approximately 6 pA typical. The AD8062ARZ-RL has an input bias current of approximately 1.4 µA typical. The AD8066 is therefore better suited for high-impedance sensor and photodiode interfaces where low bias current is critical.
What supply voltage ranges do the AD8066ARZ and AD8062ARZ-RL support?
Both devices operate from dual supplies of ±2.5 V to ±12 V, or equivalently from a single supply of 5 V to 24 V. This wide common supply range allows either part to be used in a broad variety of analog signal conditioning designs.
What is the difference in packaging and ordering format between the two parts?
The AD8066ARZ is supplied in an 8-lead SOIC tube or standard reel format. The AD8062ARZ-RL suffix indicates tape-and-reel packaging for automated assembly. Both use the same 8-lead SOIC body, so the difference is in ordering quantity and delivery format rather than physical footprint.
Can the AD8062ARZ-RL be used as a drop-in replacement for the AD8066ARZ?
Because both are pin-compatible 8-lead SOIC dual amplifiers with overlapping supply ranges, the AD8062ARZ-RL can physically replace the AD8066ARZ on an existing board. However, the lower bandwidth, lower slew rate, and higher input bias current of the AD8062 must be validated against the application's AC and DC requirements before substitution.