Part A
AD8058ARM
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5381 PCS
- Package
- MSOP-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD8058ARM and AD8056ARM-REEL7 are both dual high-speed voltage-feedback operational amplifiers from Analog Devices in the same 8-lead MSOP package, sharing comparable supply voltage ranges and similar bandwidth class. While the AD8058ARM offers lower supply current per amplifier and slightly different AC specifications, the AD8056ARM-REEL7 provides higher output drive and a wider supply span. Designers should validate gain-bandwidth, slew rate, and output swing requirements against the target application before substituting, but the two parts are strong functional replacement candidates for many dual op-amp signal-chain designs.
Package Type
High match
Channel Count
High match
Supply Voltage Range
Validation required
Bandwidth and Slew Rate
Validation required
Parts at a glance
Part B
AD8056ARM-REEL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3177 PCS
- Package
- TSSOP-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 | AD8058ARM | AD8056ARM-REEL7 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for substitution. |
| -3 dB Bandwidth | 325 MHz | 300 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain. |
| Slew Rate | 1000 V/µs | 1400 V/µs | Slew rate limits how fast the output can respond to large signal steps; higher is better for fast transients. |
| Supply Voltage Range | 3 V to 12 V | ±5 V (10 V) nominal | The supply range must match the system rails for the part to operate correctly and safely. |
| Input Voltage Noise Density | 6 nV/√Hz | 6 nV/√Hz | Noise density affects the signal-to-noise ratio in low-level signal applications. |
| Quiescent Supply Current (per amplifier) | ~5.5 mA | ~5.4 mA | Quiescent current impacts power budget and thermal performance in the design. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Package compatibility ensures the part can be placed on the same PCB footprint. |
| Output Current | ~50 mA | ~60 mA | Output drive capability determines the load the amplifier can drive without distortion. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8058ARM | AD8056ARM-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Slew Rate | 1150V/µs | 1400V/µs |
| -3 dB Bandwidth | 325 MHz | 300 MHz |
| Current - Input Bias | 500 nA | 400 nA |
| Voltage - Input Offset | 1 mV | 3 mV |
| Supply Current | 14mA | 10mA |
| Current - Output / Channel | - | 60 mA |
| Voltage - Supply Span(Min) | 3 V | 8 V |
| Voltage - Supply Span(Max) | 12 V | 12 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Gain Bandwidth Product | 100 MHz | - |
Frequently asked questions
What are the key differences between the AD8058ARM and AD8056ARM-REEL7?
The AD8058ARM is a dual, low-power, high-speed voltage feedback amplifier, while the AD8056ARM-REEL7 is a dual, high-speed voltage feedback amplifier with higher quiescent current. The AD8058ARM is optimized for lower power consumption, whereas the AD8056ARM-REEL7 offers higher output drive and bandwidth. Both are dual operational amplifiers in 8-lead MSOP packages, but they differ in supply current, bandwidth, and slew rate specifications.
Are the AD8058ARM and AD8056ARM-REEL7 pin-compatible?
Yes, both devices are offered in an 8-lead MSOP (RM) package with the same pinout: pin 1 and 2 are the outputs of amplifiers A and B, pins 3 and 6 are the inverting inputs, pins 4 and 5 are the non-inverting inputs, pin 7 is V+, and pin 8 is V-. This pin compatibility allows for potential substitution on the same PCB footprint, provided the electrical differences are acceptable for the application.
How do the bandwidth specifications compare between the AD8058ARM and AD8056ARM-REEL7?
The AD8058ARM has a -3 dB bandwidth of 325 MHz (G = +1), while the AD8056ARM-REEL7 has a -3 dB bandwidth of 300 MHz (G = +1). The AD8058ARM provides slightly higher bandwidth, making it suitable for higher-frequency signal processing, whereas the AD8056ARM-REEL7 offers a balance of bandwidth and output drive capability.
What are the supply current requirements for the AD8058ARM and AD8056ARM-REEL7?
The AD8058ARM typically draws 5.5 mA per amplifier (11 mA total for the dual) from a ±5 V supply, while the AD8056ARM-REEL7 typically draws 6.5 mA per amplifier (13 mA total). The AD8058ARM is more power-efficient, making it preferable for low-power applications, whereas the AD8056ARM-REEL7 consumes slightly more current but provides higher output current drive.
Can the AD8058ARM and AD8056ARM-REEL7 operate on the same supply voltages?
Yes, both devices operate over a wide supply voltage range. The AD8058ARM is specified for operation from ±2.5 V to ±5 V (or 5 V to 10 V single supply), and the AD8056ARM-REEL7 is specified for operation from ±2.5 V to ±5 V (or 5 V to 10 V single supply). They share the same supply voltage range, allowing them to be used in similar system power architectures.
What is the slew rate of the AD8058ARM compared to the AD8056ARM-REEL7?
The AD8058ARM has a slew rate of 1000 V/µs, while the AD8056ARM-REEL7 has a slew rate of 1400 V/µs. The AD8056ARM-REEL7 offers a higher slew rate, which can be advantageous for large-signal, high-frequency applications, whereas the AD8058ARM still provides excellent dynamic performance for lower-power designs.
Are the AD8058ARM and AD8056ARM-REEL7 suitable for driving video or ADC applications?
Both amplifiers are well-suited for video and ADC driving applications due to their high bandwidth and low distortion. The AD8058ARM is often used in low-power video systems and portable instrumentation, while the AD8056ARM-REEL7 is commonly employed in high-speed ADC drivers and video distribution systems where higher output drive and slew rate are beneficial. Selection depends on the specific power budget and dynamic performance requirements of the application.