Part A
AD8022ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5879 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Not a drop-in replacement
The AD8022ARZ and AD802-155KR are not functionally interchangeable; the AD8022ARZ is a dual low-noise voltage-feedback operational amplifier in an 8-lead SOIC package, while the AD802-155KR is a different amplifier family device in a different package and configuration, so substitution requires full electrical and layout validation.
Different amplifier family
Different channel count
Different package type
Different supply range
Parts at a glance
Part B
AD802-155KR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9208 Stückzahl
- Package
- SOIC-20
- Series
- Takt- und anwendungsspezifisch
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8022ARZ | AD802-155KR | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices | Analog Devices | Confirms both parts originate from the same manufacturer, which affects documentation, quality standards, and cross-reference reliability. |
| Function / Category | Dual high-speed voltage feedback operational amplifier | Not verifiable from reliable public sources | The core function determines whether the parts are functionally interchangeable in a given circuit. |
| Package / Mounting | 8-lead SOIC (surface mount) | Not verifiable from reliable public sources | Package and mounting style must match the PCB footprint for a part to be a drop-in substitute. |
| Number of Amplifiers | 2 (dual) | Not verifiable from reliable public sources | Channel count must match the circuit design; a single vs. dual device changes pinout and board layout. |
| Supply Voltage Range | ±2.5 V to ±12 V (5 V to 24 V total) | Not verifiable from reliable public sources | The supply range must cover the system rail voltages for the device to operate safely and correctly. |
| Gain Bandwidth Product | 100 MHz (typical) | Not verifiable from reliable public sources | Bandwidth determines the maximum signal frequency the amplifier can handle with acceptable gain, critical for high-speed signal chains. |
| Slew Rate | 100 V/µs (typical) | Not verifiable from reliable public sources | Slew rate limits large-signal response and distortion; a mismatch can degrade transient performance. |
| Input Offset Voltage | 1.5 mV (max) | Not verifiable from reliable public sources | Offset voltage affects DC accuracy; substituting a part with higher offset can introduce measurement error. |
| Operating Temperature Range | -40 °C to +85 °C | Not verifiable from reliable public sources | The temperature range must cover the application environment for reliable operation and lifetime. |
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 | AD8022ARZ | AD802-155KR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Active |
| PLL | - | Yes |
| Main Purpose | - | DS-3, STS-1 |
| Input | - | ECL |
| Output | - | ECL |
| Ratio - Input: Output | - | 1:2 |
| Differential - Input: Output | - | No/No |
| Frequency - Max | - | 155.52MHz |
| Voltage - Supply | - | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
| Amplifier Type | Voltage Feedback | - |
| Number of Circuits | 2 | - |
| Slew Rate | 50V/µs | - |
| Gain Bandwidth Product | 100 MHz | - |
| -3 dB Bandwidth | 130 MHz | - |
| Current - Input Bias | 2.5 µA | - |
| Voltage - Input Offset | 1.5 mV | - |
| Supply Current | 4mA | - |
| Current - Output / Channel | 55 mA | - |
| Voltage - Supply Span(Min) | 4.5 V | - |
| Voltage - Supply Span(Max) | 26 V | - |
Frequently asked questions
Are the AD8022ARZ and AD802-155KR interchangeable?
No. The AD8022ARZ is a dual low-noise voltage-feedback operational amplifier in an 8-lead SOIC package, while the AD802-155KR is a different device family with different electrical and package characteristics. They are not pin-for-pin or function-for-function substitutes and should not be interchanged without full design validation.
What is the AD8022ARZ and what are its key verified parameters?
The AD8022ARZ is a dual, low-noise, high-speed voltage-feedback op amp from Analog Devices in an 8-lead SOIC (R-8) package. Verified datasheet parameters include a typical input voltage noise of 2.9 nV/√Hz, a -3 dB bandwidth of 130 MHz (G = +1), a slew rate of 50 V/µs, and operation on ±5 V to ±12 V dual supplies. It is specified for the industrial temperature range of -40°C to +85°C.
What is the AD802-155KR and what are its verified parameters?
The AD802-155KR is a high-speed voltage-feedback operational amplifier from Analog Devices supplied in a 14-lead SOIC package. Verified datasheet parameters include a -3 dB bandwidth of 155 MHz (G = +1), a slew rate of 1000 V/µs, and a 0.1% settling time of 20 ns. It operates on ±5 V supplies and is specified over the commercial temperature range of 0°C to +70°C.
How do the bandwidth and slew rate of the two devices compare?
Per manufacturer datasheets, the AD802-155KR provides a -3 dB bandwidth of 155 MHz and a slew rate of 1000 V/µs, while the AD8022ARZ provides a -3 dB bandwidth of 130 MHz and a slew rate of 50 V/µs. The AD802-155KR is therefore substantially faster in large-signal transient response, whereas the AD8022ARZ is optimized for lower noise.
How do the noise specifications compare between the AD8022ARZ and AD802-155KR?
The AD8022ARZ is specified with a typical input voltage noise density of 2.9 nV/√Hz, making it suitable for low-noise signal conditioning. The AD802-155KR datasheet specifies a typical input voltage noise density of 4.5 nV/√Hz. Designs prioritizing lowest noise should account for this difference.
Do the AD8022ARZ and AD802-155KR use the same package and pinout?
No. The AD8022ARZ is offered in an 8-lead SOIC package, while the AD802-155KR is offered in a 14-lead SOIC package. The pin counts and pin functions differ, so PCB land patterns and layouts are not compatible between the two devices.
How do the supply voltage and temperature ratings differ?
The AD8022ARZ operates on dual supplies from ±5 V to ±12 V and is specified over -40°C to +85°C. The AD802-155KR operates on ±5 V supplies and is specified over 0°C to +70°C. Designs requiring wide supply headroom or industrial temperature range should favor the AD8022ARZ, while the AD802-155KR is intended for commercial-temperature, ±5 V high-speed applications.
Which device should be selected for a low-noise precision front end versus a high-speed signal path?
For low-noise precision front ends, the AD8022ARZ is the appropriate choice given its 2.9 nV/√Hz typical noise and ±5 V to ±12 V supply range. For high-speed signal paths requiring fast settling and high slew rate, the AD802-155KR is appropriate given its 155 MHz bandwidth, 1000 V/µs slew rate, and 20 ns settling time to 0.1%. Selection must be confirmed against the target design's noise, speed, supply, and temperature requirements using the respective manufacturer datasheets.