Part A
AD8056AR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7003 PCS
- Package
- SOP-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD8056AR and AD8052AR-REEL7 are dual high-speed voltage-feedback operational amplifiers sharing the same SOIC-8 package, dual channel configuration, and closely matched AC and DC performance characteristics. Both devices are functionally interchangeable in most signal-conditioning, buffering, and active-filter applications, with the AD8056AR offering higher output current drive and the AD8052AR-REEL7 providing lower supply current per amplifier. Designers should validate thermal margins and load-driving requirements against the target circuit before final qualification.
Amplifier Configuration
High match
Package Type
High match
Bandwidth and Slew Rate
High match
Output Drive and Supply Current
Validation required
Parts at a glance
Part B
AD8052AR-REEL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7806 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8056AR | AD8052AR-REEL7 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for direct substitution in dual-amplifier circuits. |
| -3 dB Bandwidth | 300 MHz | 145 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain; the AD8056AR offers roughly double the bandwidth. |
| Slew Rate | 1400 V/µs | 170 V/µs | Slew rate limits how fast the output can change; the AD8056AR supports much faster large-signal transitions, affecting high-frequency and pulse performance. |
| Supply Voltage Range | ±5 V (5 V to 12 V total) | 3 V to 12 V | The usable supply range affects compatibility with the system power rails; the AD8052AR-REEL7 supports lower single-supply operation down to 3 V. |
| Input Voltage Noise Density | 6 nV/√Hz | 16 nV/√Hz | Lower input noise improves signal-to-noise ratio in low-level signal applications; the AD8056AR is significantly quieter. |
| Quiescent Supply Current (per amplifier) | 5.4 mA | 4.8 mA | Quiescent current affects power consumption and thermal budget; the AD8052AR-REEL7 draws slightly less current per amplifier. |
| Output Current | 60 mA | 50 mA | Output drive capability determines the load the amplifier can drive; the AD8056AR can source/sink more current for heavier loads. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package compatibility ensures the part can be placed on the same PCB footprint without layout changes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8056AR | AD8052AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Output Type | - | Rail-to-Rail |
| Slew Rate | 1400V/µs | 170V/µs |
| -3 dB Bandwidth | 300 MHz | 110 MHz |
| Current - Input Bias | 400 nA | 1.4 µA |
| Voltage - Input Offset | 3 mV | 1.7 mV |
| Supply Current | 10mA | 4.8mA (x2 Channels) |
| Current - Output / Channel | 60 mA | 45 mA |
| Voltage - Supply Span(Min) | 8 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 AD8056AR and AD8052AR-REEL7?
The AD8056AR is a dual voltage-feedback operational amplifier specified for ±5 V or +5 V operation with a typical −3 dB bandwidth of 300 MHz and 1400 V/µs slew rate. The AD8052AR-REEL7 is a dual voltage-feedback op amp with a typical −3 dB bandwidth of 110 MHz and 145 V/µs slew rate, supplied on a 7-inch reel. Both are dual op amps in 8-lead SOIC packages, but the AD8056AR targets higher bandwidth and slew-rate applications, while the AD8052AR-REEL7 targets lower-power, lower-bandwidth signal chains.
Are the AD8056AR and AD8052AR-REEL7 pin-compatible?
Yes. Both devices are dual operational amplifiers offered in an 8-lead SOIC (R-8) package with the same standard dual op amp pinout: 1 OUT A, 2 −IN A, 3 +IN A, 4 −VS, 5 +IN B, 6 −IN B, 7 OUT B, 8 +VS. This allows board-level interchangeability, but electrical differences must still be validated for the target design.
Can the AD8052AR-REEL7 be used as a drop-in replacement for the AD8056AR?
Pin compatibility permits physical substitution, but the AD8052AR-REEL7 has significantly lower bandwidth (110 MHz typical vs. 300 MHz typical) and slew rate (145 V/µs typical vs. 1400 V/µs typical) than the AD8056AR. A drop-in replacement is only acceptable after verifying that the reduced AC performance, supply current, and settling behavior meet the application requirements.
What supply voltage ranges do the AD8056AR and AD8052AR-REEL7 support?
Both devices are specified for dual-supply operation of ±5 V and single-supply operation of +5 V. The AD8056AR datasheet specifies operation from ±5 V (or +5 V single supply), and the AD8052AR-REEL7 is similarly specified for +5 V single-supply and ±5 V dual-supply operation. Designs should confirm the exact supply range and derating against the respective manufacturer datasheet.
How do the quiescent supply currents of the AD8056AR and AD8052AR-REEL7 compare?
The AD8056AR typically draws about 5.4 mA per amplifier (approximately 10.8 mA total for the dual) at ±5 V. The AD8052AR-REEL7 typically draws about 4.5 mA per amplifier (approximately 9 mA total for the dual). The AD8052AR-REEL7 therefore offers somewhat lower quiescent current, consistent with its lower bandwidth and slew rate.
What is the significance of the REEL7 suffix on the AD8052AR-REEL7?
The REEL7 suffix indicates the device is supplied on a 7-inch tape-and-reel carrier for automated pick-and-place assembly. It does not change the electrical specifications of the AD8052AR; the reel quantity and packaging format are the only differences from a tube or tray option.
Which device is better suited for high-speed signal processing?
The AD8056AR is better suited for high-speed signal processing because its typical −3 dB bandwidth of 300 MHz and slew rate of 1400 V/µs exceed the AD8052AR-REEL7's typical 110 MHz bandwidth and 145 V/µs slew rate. The AD8056AR is intended for applications such as video, ADC driving, and high-frequency filtering where wider bandwidth and faster settling are required.
Are both devices specified over the same operating temperature range?
Both the AD8056AR and AD8052AR-REEL7 are specified for the industrial temperature range of −40 °C to +85 °C. Designers should still verify the exact grade and temperature specification on the manufacturer datasheet for the specific orderable part number.