Part A
AD8009AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2831 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8009AR and AD8001AR are both high-speed current-feedback operational amplifiers from Analog Devices in the same 8-lead SOIC package, sharing a common functional architecture and supply framework. While the AD8009AR offers substantially higher bandwidth and slew rate for demanding video and pulse applications, the AD8001AR remains a viable functional substitute in less demanding signal-chain designs where its lower power consumption is advantageous. Designers should validate gain-setting resistor values and dynamic performance against the specific application requirements before committing to a replacement.
Amplifier Architecture
High match
Package Type
High match
Bandwidth and Slew Rate
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8001AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3816 PCS
- Series
- Linear - Amplifiers - Instrumentation, 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 | AD8009AR | AD8001AR | Why it matters |
|---|---|---|---|
| -3 dB Bandwidth (Gain = +1) | 700 MHz | 800 MHz | Determines the maximum signal frequency the amplifier can pass with minimal attenuation; affects high-speed signal fidelity. |
| Slew Rate | 5500 V/µs | 1200 V/µs | Sets how fast the output can respond to large signal steps; critical for pulse and transient applications. |
| Input Voltage Noise Density | 1.1 nV/√Hz | 2.0 nV/√Hz | Lower noise improves signal-to-noise ratio in low-level signal amplification; affects sensitivity of the front end. |
| Supply Current per Amplifier | 16 mA | 5.5 mA | Impacts power budget and thermal design; lower current is preferable for power-sensitive systems. |
| Output Current | 175 mA | 70 mA | Determines the amplifier's ability to drive low-impedance loads such as cables or ADCs; affects load-driving capability. |
| Input Offset Voltage (max) | 10 mV | 5 mV | DC accuracy parameter; lower offset reduces output error in precision signal chains. |
| Supply Voltage Range | ±5 V to ±6 V | ±3 V to ±6 V | Defines the allowable power supply; affects compatibility with existing system rails and headroom. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Footprint compatibility for PCB layout; identical packages allow drop-in replacement without board redesign. |
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 | AD8001AR |
|---|---|---|
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 1 | 1 |
| Slew Rate | 5500V/µs | 1200V/µs |
| Current - Input Bias | 50 µA | 5 µA |
| Voltage - Input Offset | 2 mV | 2 mV |
| Supply Current | 16mA | 5mA |
| Current - Output / Channel | 175 mA | 70 mA |
| Voltage - Supply Span (Min) | - | 6 V |
| Voltage - Supply Span (Max) | - | 12 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | AD8001 |
| -3 dB Bandwidth | 1 GHz | 715 MHz |
| Voltage - Supply Span(Min) | 5 V | - |
| Voltage - Supply Span(Max) | 12 V | - |
Frequently asked questions
What are the primary differences between the AD8009AR and AD8001AR?
The AD8009AR is a current-feedback operational amplifier optimized for ultra-high slew rate (5500 V/µs) and large signal bandwidth, while the AD8001AR is a current-feedback amplifier optimized for lower power consumption (5.5 mA typical supply current) with a 3 dB bandwidth of 800 MHz and a slew rate of 1200 V/µs. The AD8009AR is typically used for high-speed pulse and video applications requiring maximum dynamic performance, whereas the AD8001AR balances speed with power efficiency.
Are the AD8009AR and AD8001AR pin-compatible?
Yes, both devices are offered in an 8-lead SOIC package (R-8 suffix) with the same pinout: pin 1 and pin 8 are offset null, pin 2 is -IN, pin 3 is +IN, pin 4 is -VS, pin 5 is NC, pin 6 is OUT, and pin 7 is +VS. This allows the AD8001AR and AD8009AR to be interchanged on the same PCB footprint, provided the surrounding circuit is re-evaluated for the different bandwidth, slew rate, and supply current characteristics.
How do the supply current and power consumption compare between the AD8009AR and AD8001AR?
The AD8009AR typically draws 16 mA of supply current, while the AD8001AR typically draws 5.5 mA. At a ±5 V supply, this corresponds to approximately 160 mW for the AD8009AR versus approximately 55 mW for the AD8001AR, making the AD8001AR preferable for power-sensitive designs.
What are the bandwidth and slew rate specifications for each device?
The AD8009AR provides a -3 dB bandwidth of 1 GHz (G = +1) and a slew rate of 5500 V/µs. The AD8001AR provides a -3 dB bandwidth of 800 MHz (G = +1) and a slew rate of 1200 V/µs. The AD8009AR therefore offers higher small-signal bandwidth and significantly faster large-signal transient response.
Can the AD8001AR be used as a direct replacement for the AD8009AR in an existing design?
Because both parts share the same 8-lead SOIC pinout, the AD8001AR can be placed on the same footprint, but it is not a drop-in performance replacement. The lower slew rate (1200 V/µs vs. 5500 V/µs), lower bandwidth (800 MHz vs. 1 GHz), and different supply current (5.5 mA vs. 16 mA) require re-validation of gain peaking, settling time, and thermal behavior in the target circuit before substitution.
What are the typical input voltage noise densities of the AD8009AR and AD8001AR?
The AD8009AR has a typical input voltage noise density of 1.1 nV/√Hz, while the AD8001AR has a typical input voltage noise density of 2.0 nV/√Hz. The AD8009AR therefore provides lower input-referred noise, which is advantageous in low-noise high-speed signal chains.
What supply voltage ranges are supported by the AD8009AR and AD8001AR?
Both the AD8009AR and AD8001AR operate from dual supplies of ±5 V to ±6 V (or single supplies of 10 V to 12 V). Designs should verify the absolute maximum supply voltage rating of 12.6 V total in the respective manufacturer datasheets before applying power.