Part A
AD8022ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7448 Stückzahl
- Package
- MSOP-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8022ARMZ and AD8028ARM-REEL are both dual high-speed voltage-feedback operational amplifiers in 8-lead MSOP packages with comparable supply voltage ranges and pin configurations, making the AD8028ARM-REEL a viable functional replacement candidate for the AD8022ARMZ in many designs. However, the two devices differ in their input bias current, quiescent current, and specified bandwidth and slew-rate performance, so the replacement should be validated against the target application's AC and DC requirements before adoption.
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
AD8028ARM-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9247 Stückzahl
- Package
- MSOP-10
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8022ARMZ | AD8028ARM-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for substitution. |
| Gain Bandwidth Product | 100 MHz | 190 MHz | Higher GBW allows the AD8028 to handle faster signals and wider bandwidth applications. |
| Slew Rate | 100 V/µs | 100 V/µs | Slew rate determines how fast the output can respond to large signal changes; identical here. |
| Input Voltage Noise Density | 2.5 nV/√Hz | 4.5 nV/√Hz | Lower noise is critical for precision and low-level signal amplification; AD8022 is quieter. |
| Supply Voltage Range | ±2.5 V to ±12 V | ±2.5 V to ±12 V | Compatible supply ranges ensure the part can drop into the same power rail design. |
| Quiescent Current per Amplifier | 4 mA | 4.5 mA | Affects power budget and thermal performance in the target design. |
| Input Offset Voltage | 1.5 mV | 0.5 mV | Lower offset improves DC accuracy; AD8028 offers better precision in DC-coupled stages. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Identical package footprint allows direct board-level replacement. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +125 °C | Wider temperature range of AD8028 suits harsher environments and industrial applications. |
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 | AD8022ARMZ | AD8028ARM-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Voltage Feedback | General Purpose |
| Number of Circuits | 2 | 2 |
| Output Type | - | Rail-to-Rail |
| Slew Rate | 50V/µs | 100V/µs |
| -3 dB Bandwidth | 130 MHz | 190 MHz |
| Current - Input Bias | 2.5 µA | 4 µA |
| Voltage - Input Offset | 1.5 mV | 200 µV |
| Supply Current | 4mA | 6.5mA (x2 Channels) |
| Current - Output / Channel | 55 mA | 120 mA |
| Voltage - Supply Span(Min) | 4.5 V | 2.7 V |
| Voltage - Supply Span(Max) | 26 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 primary differences between the AD8022ARMZ and the AD8028ARM-REEL?
The AD8022ARMZ is a dual, low-noise, high-speed voltage feedback operational amplifier, while the AD8028ARM-REEL is a dual, low-distortion, high-speed operational amplifier with an internal disable feature. The AD8022ARMZ is supplied in a standard 8-lead MSOP tube or tray format, whereas the AD8028ARM-REEL is supplied in a 8-lead MSOP tape and reel packaging for automated assembly. The AD8028ARM-REEL includes a power-down function not present on the AD8022ARMZ.
Are the AD8022ARMZ and AD8028ARM-REEL pin-compatible?
Both devices are offered in an 8-lead MSOP package, but they are not functionally pin-compatible. The AD8028ARM-REEL uses the package pins for a disable/power-down function, whereas the AD8022ARMZ does not provide this feature. Designers must verify the pin function assignments in the respective manufacturer datasheets before considering any board-level substitution.
Can the AD8022ARMZ be used as a drop-in replacement for the AD8028ARM-REEL?
No. Although both are dual high-speed amplifiers in 8-lead MSOP packages, the AD8028ARM-REEL includes a power-down pin that the AD8022ARMZ lacks, and their electrical specifications differ. A direct drop-in replacement is not supported without validating pin functions, supply requirements, and AC/DC performance against the target design.
What are the key AC specifications of the AD8022ARMZ?
The AD8022ARMZ is a dual voltage feedback amplifier with a typical -3 dB bandwidth of 100 MHz and a slew rate of 120 V/µs. It is specified for low noise operation, making it suitable for active filtering and buffering in high-speed signal chains. Exact limits should be confirmed on the official manufacturer datasheet.
What are the key AC specifications of the AD8028ARM-REEL?
The AD8028ARM-REEL is a dual high-speed operational amplifier featuring a typical -3 dB bandwidth of 190 MHz and a slew rate of 100 V/µs. It is designed for low distortion and includes an internal disable function for power-sensitive applications. Designers should consult the manufacturer datasheet for guaranteed limits over temperature.
What supply voltage ranges do these two amplifiers support?
Both the AD8022ARMZ and the AD8028ARM-REEL operate from dual supplies typically ranging from ±2.5 V to ±5 V, or equivalently from a single supply of 5 V to 10 V. The exact minimum and maximum supply limits, including absolute maximum ratings, must be verified from the respective official datasheets.
Why is the AD8028ARM-REEL supplied in tape and reel while the AD8022ARMZ is not?
The AD8028ARM-REEL suffix indicates tape-and-reel packaging intended for high-volume automated pick-and-place assembly lines. The AD8022ARMZ is typically supplied in tubes or trays for lower-volume or prototype production. The electrical device is the same within its respective part number; only the packaging orientation and quantity differ.
Which applications are better suited to the AD8028ARM-REEL versus the AD8022ARMZ?
The AD8028ARM-REEL is preferable in power-sensitive, high-volume designs that benefit from its disable function and tape-and-reel assembly. The AD8022ARMZ is suited to low-noise, high-speed signal conditioning where a power-down feature is not required. Final selection should be based on verified datasheet parameters for bandwidth, distortion, noise, and supply current.