Part A
AD8009AR
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2831 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD8009AR and AD8002ARZ-RL are both high-speed current-feedback operational amplifiers from Analog Devices in the same 8-lead SOIC package, sharing a comparable supply voltage range and similar bandwidth class. However, they differ in channel count and key AC specifications, so the AD8002ARZ-RL can serve as a functional candidate only after validating the dual-channel configuration and dynamic performance requirements against the target design.
Channel Count
Validation required
Package Type
High match
-3 dB Bandwidth
Validation required
Amplifier Architecture
High match
Parts at a glance
Part B
AD8002ARZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3746 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8009AR | AD8002ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | A single vs. dual amplifier changes board layout, channel count, and whether one package can serve two signal paths. |
| -3 dB Bandwidth | 1 GHz | 600 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain rolloff. |
| Slew Rate | 5500 V/µs | 1200 V/µs | Slew rate limits how fast the output can respond to large signal steps, affecting distortion and pulse fidelity. |
| Supply Voltage Range | ±5 V to ±6 V (10 V to 12 V total) | ±3 V to ±6 V (6 V to 12 V total) | The allowable supply range determines compatibility with a given power rail and headroom for signal swing. |
| Input Offset Voltage (typ) | 2 mV | 1 mV | Offset voltage contributes a DC error at the output; lower offset improves precision in DC-coupled signal chains. |
| Quiescent Supply Current per Amplifier (typ) | 16 mA | 7 mA | Quiescent current affects power budget and thermal load, which is critical in dense or power-sensitive designs. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package footprint and pinout must match for a drop-in replacement on an existing PCB. |
| Output Current (typ) | 175 mA | 70 mA | Output drive capability determines the ability to drive low-impedance loads such as cables or ADCs directly. |
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 | AD8009AR | AD8002ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 1 | 2 |
| Slew Rate | 5500V/µs | 1200V/µs |
| -3 dB Bandwidth | 1 GHz | 600 MHz |
| Current - Input Bias | 50 µA | 5 µA |
| Voltage - Input Offset | 2 mV | 2 mV |
| Supply Current | 16mA | 10mA (x2 Channels) |
| Current - Output / Channel | 175 mA | 70 mA |
| Voltage - Supply Span(Min) | 5 V | 6 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 AD8009AR and AD8002ARZ-RL?
The AD8009AR is a single, high-speed current-feedback operational amplifier offered in an 8-lead SOIC package, featuring a 5 GHz gain-bandwidth product and 5,500 V/µs slew rate. The AD8002ARZ-RL is a dual current-feedback operational amplifier in an 8-lead SOIC package supplied in tape-and-reel form, with a 600 MHz gain-bandwidth product and 1,200 V/µs slew rate. The AD8009AR is optimized for extremely high slew rate and bandwidth in single-channel designs, while the AD8002ARZ-RL provides two matched amplifiers per package for dual-channel signal chains.
Are the AD8009AR and AD8002ARZ-RL pin-compatible?
No. The AD8009AR is a single amplifier in an 8-lead SOIC pinout, whereas the AD8002ARZ-RL is a dual amplifier in an 8-lead SOIC pinout. The pin functions differ because the dual device uses the shared package pins for two independent amplifier channels, so the two parts cannot be interchanged on the same PCB land pattern without redesign.
Can the AD8009AR be used as a direct drop-in replacement for the AD8002ARZ-RL?
No. Beyond the pinout difference between a single and a dual amplifier, the two devices have different gain-bandwidth products, slew rates, and supply current characteristics. A substitution requires validation of the circuit's bandwidth, stability, and power budget against the manufacturer datasheets for both parts.
What are the gain-bandwidth products of the AD8009AR and AD8002ARZ-RL?
The AD8009AR has a gain-bandwidth product of 5 GHz, while the AD8002ARZ-RL has a gain-bandwidth product of 600 MHz. The AD8009AR is therefore intended for applications requiring substantially higher bandwidth per amplifier channel.
How do the slew rates of the AD8009AR and AD8002ARZ-RL compare?
The AD8009AR specifies a slew rate of 5,500 V/µs, whereas the AD8002ARZ-RL specifies a slew rate of 1,200 V/µs. The AD8009AR offers significantly faster large-signal transient response, which is relevant for high-speed pulse and video applications.
What package and packaging options do these two parts use?
Both the AD8009AR and the AD8002ARZ-RL are offered in 8-lead SOIC packages. The AD8009AR is supplied in tube or standard reel packaging depending on the ordering code, while the AD8002ARZ-RL suffix indicates tape-and-reel packaging for automated assembly.
Do the AD8009AR and AD8002ARZ-RL share the same supply voltage range?
Both devices are current-feedback amplifiers designed to operate from dual supplies typically in the ±5 V range, with the AD8009AR specified for operation from ±5 V supplies and the AD8002ARZ-RL also specified for ±5 V operation. Designers should confirm the exact absolute maximum and recommended operating ranges in the respective manufacturer datasheets before finalizing a design.
Which part is better suited for dual-channel signal processing?
The AD8002ARZ-RL is better suited for dual-channel signal processing because it integrates two matched current-feedback amplifiers in a single 8-lead SOIC package, reducing board space and improving channel-to-channel matching. The AD8009AR is a single amplifier and would require two devices to implement a dual-channel function.