Part A
AD8012ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7127 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8014ARZ and AD8012ARZ are both high-speed current-feedback operational amplifiers from Analog Devices in the same 8-lead SOIC package, sharing a common functional architecture and supply range. However, they differ in channel count and key AC/DC performance parameters, so the AD8012ARZ can serve as a functional substitute for the AD8014ARZ only after the designer validates bandwidth, slew rate, and supply current against the target application requirements.
Amplifier Architecture
Validation required
Channel Count
Not compatible
Bandwidth and Slew Rate
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8014ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1208 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 | AD8014ARZ | AD8012ARZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | Determines how many independent signal channels are available in a single package; a dual amplifier can replace two singles, affecting board layout and channel count. |
| -3 dB Bandwidth | 400 MHz | 350 MHz | Sets the maximum usable signal frequency; higher bandwidth supports faster signals and sharper pulse edges in video and high-speed applications. |
| Slew Rate | 4000 V/µs | 2250 V/µs | Governs how quickly the output can respond to large signal steps; higher slew rate reduces distortion on fast, large-amplitude waveforms. |
| Input Voltage Noise | 2.5 nV/√Hz | 1.8 nV/√Hz | Lower input noise improves signal-to-noise ratio in low-level signal amplification, which is critical for precision and sensor front-ends. |
| Supply Current per Amplifier | 1.15 mA | 1.2 mA | Affects total power consumption and thermal budget; important for portable and power-sensitive designs. |
| Output Current | 50 mA | 125 mA | Determines the drive capability for loads such as cables and ADCs; higher output current supports heavier loads without clipping. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Footprint and pinout compatibility affect whether the parts can be dropped into the same board location; identical package eases substitution. |
| Supply Voltage Range | ±4.5 V to ±6 V (9 V to 12 V) | ±1.5 V to ±6 V (3 V to 12 V) | Defines the allowable power supply; a wider range enables operation in low-voltage systems and offers more design flexibility. |
| Input Offset Voltage | 5 mV (max) | 3 mV (max) | Lower offset reduces DC error at the output, which is important for precision DC-coupled signal chains. |
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 | AD8012ARZ | AD8014ARZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 2 | 1 |
| Slew Rate | 2250V/µs | 4600V/µs |
| Gain Bandwidth Product | 75 MHz | - |
| -3 dB Bandwidth | 350 MHz | 480 MHz |
| Current - Input Bias | 3 µA | 5 µA |
| Voltage - Input Offset | 1.5 mV | 2 mV |
| Supply Current | 1.7mA (x2 Channels) | 1.15mA |
| Current - Output / Channel | 125 mA | 50 mA |
| Voltage - Supply Span(Min) | 3 V | 4.5 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 |
Frequently asked questions
What are the primary differences between the AD8014ARZ and AD8012ARZ?
The AD8014ARZ is a single, high-speed current-feedback operational amplifier, while the AD8012ARZ is a dual, low-power current-feedback operational amplifier. The AD8014ARZ is optimized for lower supply current per amplifier and higher output drive, whereas the AD8012ARZ integrates two amplifiers in one package for dual-channel applications.
Are the AD8014ARZ and AD8012ARZ pin-compatible?
No. The AD8014ARZ is a single amplifier in an 8-lead SOIC package, and the AD8012ARZ is a dual amplifier in an 8-lead SOIC package. Their pinouts differ because one contains a single amplifier and the other contains two amplifiers, so they are not direct drop-in replacements for each other.
What are the supply voltage ranges for the AD8014ARZ and AD8012ARZ?
Both devices operate from dual supplies of ±2.5 V to ±6 V or single supplies of 5 V to 12 V, as specified in the Analog Devices datasheets. Designers should verify the exact recommended operating conditions in the respective datasheet before finalizing the supply design.
How do the bandwidth specifications compare between the AD8014ARZ and AD8012ARZ?
The AD8014ARZ offers a −3 dB bandwidth of approximately 400 MHz, while the AD8012ARZ offers a −3 dB bandwidth of approximately 350 MHz per amplifier. Both are current-feedback amplifiers intended for high-speed signal processing, but the AD8014ARZ provides slightly higher bandwidth.
What are the typical supply current requirements for each device?
The AD8014ARZ typically draws about 1.15 mA per amplifier, and the AD8012ARZ typically draws about 1.1 mA per amplifier. The AD8012ARZ integrates two amplifiers, so its total package supply current is roughly twice that of a single AD8014ARZ.
Can the AD8014ARZ and AD8012ARZ be used in low-power portable designs?
Yes. Both are low-power current-feedback amplifiers with supply currents in the low-milliampere range, making them suitable for power-sensitive applications. The AD8014ARZ is preferable when only one amplifier channel is needed, while the AD8012ARZ suits dual-channel designs where board space and component count must be minimized.
What package options are available for the AD8014ARZ and AD8012ARZ?
Both the AD8014ARZ and AD8012ARZ are offered in 8-lead SOIC packages. The AD8014ARZ is a single amplifier in an 8-lead SOIC, and the AD8012ARZ is a dual amplifier in an 8-lead SOIC. Designers should confirm the exact package suffix and thermal characteristics in the manufacturer datasheet.
Which device is better suited for driving analog-to-digital converter inputs?
Both amplifiers are commonly used as ADC drivers due to their high bandwidth and current-feedback architecture. The AD8014ARZ is often selected for single-channel ADC driver stages, while the AD8012ARZ is used where two matched driver channels are required in a compact footprint. Final selection should be based on the specific ADC input requirements and verified datasheet parameters.