Part A
AD8012ARZ
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 7127 PCS
- Package
- SOIC-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Replacement verdict
Not a drop-in replacement
The AD8012ARZ and AD8010AR-16 are not drop-in replacements for one another. Although both are high-speed current-feedback operational amplifiers from Analog Devices, they differ in channel count, package and pinout, supply voltage range, and output drive capability, so a direct board-level substitution is not possible without redesign.
Different channel count
Different package and pinout
Different supply voltage range
Different output drive capability
Parts at a glance
Part B
AD8010AR-16
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 7478 PCS
- Package
- SOIC-16
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8012ARZ | AD8010AR-16 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Channel count determines whether one package can serve two signal paths; a dual cannot be dropped into a single-channel socket without layout changes. |
| -3 dB Bandwidth | 325 MHz | 230 MHz | Bandwidth sets the maximum signal frequency the amplifier can pass with acceptable gain, affecting high-speed signal fidelity. |
| Slew Rate | 2250 V/µs | 800 V/µs | Slew rate limits how fast the output can track large signal transitions; lower slew rate causes distortion on fast edges. |
| Supply Current per Amplifier | 1.2 mA | 15 mA | Quiescent current drives power budget and thermal design; a large difference affects battery life and heat dissipation. |
| Output Current | 125 mA | 200 mA | Output drive capability determines the load the amplifier can drive, such as cables or low-impedance stages. |
| Input Voltage Noise | 2.5 nV/√Hz | 3 nV/√Hz | Input noise density sets the noise floor for low-level signals; higher noise degrades SNR in sensitive front ends. |
| Package / Pin Count | 8-Lead SOIC | 16-Lead SOIC | Package and pin count must match the PCB footprint; different packages are not drop-in compatible. |
| Supply Voltage Range | ±1.5 V to ±6 V (3 V to 12 V) | ±5 V to ±15 V (10 V to 30 V) | Operating supply range must cover the system rails; a part rated for lower rails cannot be used in higher-voltage designs. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8012ARZ | AD8010AR-16 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 2 | 1 |
| Slew Rate | 2250V/µs | 800V/µs |
| -3 dB Bandwidth | 350 MHz | 230 MHz |
| Current - Input Bias | 3 µA | 10 µA |
| Voltage - Input Offset | 1.5 mV | 5 mV |
| Supply Current | 1.7mA (x2 Channels) | 15.5mA |
| Current - Output / Channel | 125 mA | 200 mA |
| Voltage - Supply Span(Min) | 3 V | 9 V |
| Voltage - Supply Span(Max) | 12 V | 12 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Gain Bandwidth Product | 75 MHz | - |
Frequently asked questions
What are the primary differences between the AD8012ARZ and the AD8010AR-16?
The AD8012ARZ is a dual, low-power, high-speed current-feedback operational amplifier supplied in an 8-lead SOIC package, while the AD8010AR-16 is a single, high-output-current, high-speed current-feedback amplifier supplied in a 16-lead SOIC package. The AD8012ARZ is optimized for low power consumption per amplifier, whereas the AD8010AR-16 is optimized for driving high output current loads.
Are the AD8012ARZ and AD8010AR-16 pin-compatible?
No. The AD8012ARZ uses an 8-lead SOIC (R-8) package, and the AD8010AR-16 uses a 16-lead SOIC (R-16) package. The package body sizes, pin counts, and pin assignments differ, so they are not drop-in replacements for each other on the same PCB footprint.
How do the supply voltage and quiescent current specifications compare?
The AD8012ARZ operates on a ±5 V to ±6 V dual supply (or 10 V to 12 V single supply) with a typical quiescent supply current of approximately 1.2 mA per amplifier. The AD8010AR-16 operates on a ±5 V dual supply with a typical quiescent supply current of approximately 15 mA. The AD8012ARZ is therefore substantially lower in power consumption, while the AD8010AR-16 trades higher quiescent current for greater output drive capability.
Which device is better suited for driving high output current loads?
The AD8010AR-16 is designed for high output current applications, with a specified output current capability of approximately 200 mA. The AD8012ARZ is a lower-power dual amplifier with a lower output current drive capability. For loads requiring high output current, the AD8010AR-16 is the appropriate choice based on its published specifications.
How do the bandwidth specifications of the two amplifiers compare?
The AD8012ARZ provides a -3 dB bandwidth of approximately 350 MHz (G = +1) and a slew rate of approximately 2250 V/µs. The AD8010AR-16 provides a -3 dB bandwidth of approximately 230 MHz (G = +1) and a slew rate of approximately 800 V/µs. The AD8012ARZ offers higher small-signal bandwidth and slew rate, while the AD8010AR-16 emphasizes output current drive.
Can the AD8012ARZ and AD8010AR-16 be used in the same circuit design interchangeably?
No. Beyond the package and pinout differences, the two devices differ in channel count (dual versus single), quiescent current, output current capability, and bandwidth. A design targeting one device cannot substitute the other without revalidating the PCB layout, power budget, load drive requirements, and AC performance against the manufacturer datasheets.
What are the typical applications for each device?
The AD8012ARZ is typically used in low-power, high-speed signal processing applications such as portable instrumentation, active filters, and video signal chains where dual amplifiers and low quiescent current are beneficial. The AD8010AR-16 is typically used in applications requiring high output current drive, such as driving coaxial cables, video distribution, and ADSL line driving, where its higher output current capability is advantageous.