Part A
AD8051ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6365 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8052ARZ is a dual-channel variant of the AD8051ARZ single-channel operational amplifier, sharing the same voltage-feedback architecture, SOIC-8 package family, and 3 V to 12 V supply range. It is a viable functional replacement candidate where an additional amplifier channel is acceptable, but the doubled supply current and dual-channel configuration must be validated against the target design's power budget and signal-chain requirements.
Amplifier Architecture
High match
Supply Voltage Range
High match
Channel Count
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8052ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5439 PCS
- Package
- SOIC-8
- 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 | AD8052ARZ | AD8051ARZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Channel count determines how many independent signal paths can be processed in one package; a dual cannot directly replace a single without layout changes. |
| -3 dB Bandwidth | 110 MHz | 110 MHz | Bandwidth sets the maximum signal frequency the amplifier can handle with acceptable gain, critical for video and high-speed signal chains. |
| Slew Rate | 145 V/µs | 145 V/µs | Slew rate limits how fast the output can respond to large signal steps, affecting distortion and large-signal bandwidth. |
| Supply Voltage Range | 3 V to 12 V | 3 V to 12 V | The allowable supply range determines compatibility with the system power rail and single-supply operation. |
| Input Offset Voltage (max) | 5 mV | 5 mV | Offset voltage contributes a DC error at the output; matching values ensures equivalent DC accuracy in precision signal paths. |
| Input Bias Current | 1.4 µA | 1.4 µA | Bias current interacts with source impedance to create offset errors; identical values preserve accuracy with high-impedance sources. |
| Quiescent Supply Current per Amplifier | 5.5 mA | 5.5 mA | Quiescent current affects power budget and thermal design; equal per-amplifier current means equivalent power per channel. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package and pinout must match for board-level drop-in compatibility; both use the same 8-lead SOIC footprint. |
| Output Current | 30 mA | 30 mA | Output drive capability determines the load the amplifier can drive, such as cables or ADC inputs, without clipping. |
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 | AD8051ARZ | AD8052ARZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 170V/µs | 170V/µs |
| -3 dB Bandwidth | 110 MHz | 110 MHz |
| Current - Input Bias | 1.4 µA | 1.4 µA |
| Voltage - Input Offset | 1.8 mV | 1.7 mV |
| Supply Current | 4.8mA | 4.8mA (x2 Channels) |
| Current - Output / Channel | 45 mA | 45 mA |
| Voltage - Supply Span(Min) | 3 V | 3 V |
| Voltage - Supply Span(Max) | 12 V | 12 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8052ARZ and AD8051ARZ?
The AD8052ARZ is a dual operational amplifier, while the AD8051ARZ is a single operational amplifier. Both are voltage-feedback op amps from Analog Devices fabricated on a high-speed complementary bipolar process, offered in 8-lead SOIC (R-8) packages, and specified for operation on a single 3 V to 12 V supply or dual ±1.5 V to ±6 V supplies. The AD8052ARZ provides two amplifiers per package, whereas the AD8051ARZ provides one amplifier with dedicated shutdown capability.
Are the AD8052ARZ and AD8051ARZ pin-compatible in the same SOIC package?
No. Although both devices are supplied in an 8-lead SOIC package, the pinouts differ because the AD8052ARZ contains two independent amplifiers while the AD8051ARZ contains a single amplifier with a shutdown pin. The AD8051ARZ uses the package pins for one amplifier plus a DISABLE function, so the two devices cannot be treated as drop-in replacements without verifying the pin functions against the respective datasheets.
What are the specified bandwidth and slew rate for these amplifiers?
Per Analog Devices datasheets, both the AD8051 and AD8052 are specified with a −3 dB bandwidth of 110 MHz (G = +1) and a slew rate of 145 V/µs. These high-speed characteristics make both devices suitable for video, imaging, and other signal-conditioning applications requiring wide bandwidth and fast transient response.
What supply voltage range do the AD8052ARZ and AD8051ARZ support?
Both devices are specified for operation on a single supply of 3 V to 12 V, or on dual supplies of ±1.5 V to ±6 V. This wide supply range allows the parts to be used in both low-voltage portable systems and higher-voltage signal chains while maintaining their specified AC performance.
Does the AD8051ARZ include a shutdown feature that the AD8052ARZ lacks?
Yes. The AD8051ARZ is offered in a version with a TTL-compatible DISABLE pin that places the amplifier in a low-power shutdown state, which is useful for power-sensitive designs. The AD8052ARZ, being a dual amplifier in an 8-lead package, does not provide a dedicated shutdown pin; power reduction is achieved by removing the supply or using external switching.
Which device should be selected for a dual-channel signal chain versus a single-channel design?
For designs requiring two matched amplifiers in one package, such as differential or I/Q signal paths, the AD8052ARZ is the appropriate choice because it integrates two amplifiers in a single 8-lead SOIC. For single-channel applications where board space and power are critical, the AD8051ARZ provides one amplifier and, in its shutdown version, additional power savings. Selection should be based on channel count, shutdown requirements, and PCB layout constraints verified against the datasheets.
Are the AD8052ARZ and AD8051ARZ specified over the same temperature range?
Both devices are specified for the industrial temperature range of −40°C to +85°C, as stated in the Analog Devices datasheets. This common temperature specification allows either part to be used in industrial and commercial applications within that range, provided the package and channel-count requirements are met.