Part A
AD8000YRDZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6251 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8009ARZ and AD8000YRDZ are both high-speed current-feedback operational amplifiers from Analog Devices, but they are not identical drop-in substitutes. The AD8009ARZ offers higher slew rate and bandwidth in a standard SOIC-8 package, while the AD8000YRDZ provides lower input noise and a smaller LFCSP package. Designers should validate supply voltage headroom, thermal performance, and PCB footprint before substituting one for the other in a given application.
Amplifier Topology
Validation required
Bandwidth and Slew Rate
Validation required
Package Type
Not compatible
Supply Voltage Range
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8009ARZ | AD8000YRDZ | Why it matters |
|---|---|---|---|
| -3 dB Bandwidth | 1 GHz (G = +2) | 1.5 GHz (G = +1) | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain, directly affecting high-speed signal fidelity. |
| Slew Rate | 5500 V/µs | 4100 V/µs | Slew rate limits how fast the output can respond to large signal swings; higher slew rate supports faster large-signal transitions. |
| Supply Voltage Range | ±5 V to ±6 V (dual) | ±4 V to ±6 V (dual) | The allowable supply range determines compatibility with the system power rails and headroom available for signal swing. |
| Quiescent Supply Current | 16 mA typical | 13.5 mA typical | Quiescent current affects power consumption and thermal budget, which is important in densely packed or power-sensitive designs. |
| Input Voltage Noise | 1.1 nV/√Hz | 1.6 nV/√Hz | Lower input voltage noise improves the signal-to-noise ratio in low-level signal amplification applications. |
| Package | 8-Lead SOIC | 8-Lead SOIC (with exposed pad) | Package type affects PCB footprint, thermal performance, and layout compatibility for drop-in substitution. |
| Output Current | 175 mA | 100 mA | Output drive current determines the ability to drive low-impedance loads such as cables or ADCs without distortion. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +125°C | The temperature range defines the environments in which the part can reliably operate, affecting suitability for industrial or automotive use. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8000YRDZ | AD8009ARZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 1 | 1 |
| Slew Rate | 4100V/µs | 5500V/µs |
| -3 dB Bandwidth | 1.58 GHz | 1 GHz |
| Current - Input Bias | 5 µA | 50 µA |
| Voltage - Input Offset | 1 mV | 2 mV |
| Supply Current | 13.5mA | 16mA |
| Current - Output / Channel | 100 mA | 175 mA |
| Voltage - Supply Span(Min) | 4.5 V | 5 V |
| Voltage - Supply Span(Max) | 12 V | 12 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD8009ARZ and the AD8000YRDZ?
The AD8009ARZ is a current-feedback operational amplifier specified for a 5 V supply with a 1 GHz -3 dB bandwidth and 5,500 V/µs slew rate, supplied in an 8-lead SOIC package. The AD8000YRDZ is a voltage-feedback operational amplifier specified for ±5 V supplies with a 1.5 GHz -3 dB bandwidth and 4,100 V/µs slew rate, supplied in an 8-lead SOIC with exposed pad (SOIC-EP) package. They differ in amplifier topology, supply range, package thermal pad, and dynamic specifications.
Are the AD8009ARZ and AD8000YRDZ pin-compatible?
No. The AD8009ARZ uses the standard 8-lead SOIC pinout, while the AD8000YRDZ uses an 8-lead SOIC with exposed pad (SOIC-EP) that requires a thermal pad land on the PCB. The exposed pad must be soldered to a copper area for rated thermal performance, so the two are not drop-in replacements on the same land pattern.
What are the supply voltage requirements for each device?
The AD8009ARZ is specified for operation on a single 5 V supply (with a specified dual-supply range as well). The AD8000YRDZ is specified for ±5 V dual supplies. Designs must confirm the supply configuration against the respective datasheet before substitution.
How do the bandwidth and slew rate specifications compare?
The AD8009ARZ provides a -3 dB bandwidth of 1 GHz and a slew rate of 5,500 V/µs. The AD8000YRDZ provides a -3 dB bandwidth of 1.5 GHz and a slew rate of 4,100 V/µs. The AD8000YRDZ offers higher small-signal bandwidth, while the AD8009ARZ offers a higher slew rate.
Which device is better suited for high-speed current-feedback applications?
The AD8009ARZ is the current-feedback amplifier in this pair and is specified for current-feedback operation, making it the appropriate choice when the design requires current-feedback topology characteristics such as gain-independent bandwidth. The AD8000YRDZ is a voltage-feedback amplifier and is not a direct substitute in current-feedback circuits.
Do the two parts differ in package thermal performance?
Yes. The AD8000YRDZ includes an exposed thermal pad (SOIC-EP) intended to be soldered to a PCB copper plane for improved heat dissipation. The AD8009ARZ uses a standard 8-lead SOIC without an exposed pad. Thermal design and PCB layout must account for this difference.
Can the AD8000YRDZ directly replace the AD8009ARZ in an existing design?
No. Direct replacement is not supported because the devices differ in amplifier topology (voltage-feedback versus current-feedback), supply specifications, package footprint (exposed pad versus standard SOIC), and dynamic performance. Any substitution requires full validation against the manufacturer datasheets and the target circuit requirements.