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 AD8022ARM are functionally equivalent dual high-speed voltage-feedback operational amplifiers from Analog Devices, sharing the same core die, supply range, bandwidth, and pinout. The only material distinction is the package finish: the AD8022ARMZ is RoHS-compliant lead-free (Z suffix), while the AD8022ARM is the non-RoHS leaded version. For RoHS-restricted assemblies, the AD8022ARMZ is the preferred drop-in choice; the AD8022ARM should be reserved for legacy or exempt applications.
Amplifier Core Specifications
High match
Pinout and Footprint
High match
Supply Voltage Range
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD8022ARM
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9032 Stückzahl
- Package
- TSSOP-8
- 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 | AD8022ARM | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count matches for direct circuit substitution. |
| Supply Voltage Range | ±2.5 V to ±12 V (5 V to 24 V total) | ±2.5 V to ±12 V (5 V to 24 V total) | Identical supply range ensures the part can drop into the same power rail design. |
| -3 dB Bandwidth | 100 MHz | 100 MHz | Matching bandwidth preserves AC signal fidelity and frequency response in the application. |
| Slew Rate | 100 V/µs | 100 V/µs | Equal slew rate maintains large-signal transient performance and stability. |
| Input Offset Voltage (max) | 1.5 mV | 1.5 mV | Same offset spec ensures comparable DC accuracy in precision signal chains. |
| Input Voltage Noise | 2.7 nV/√Hz | 2.7 nV/√Hz | Identical noise density keeps low-noise performance unchanged in sensitive front-ends. |
| Quiescent Current per Amplifier | 4 mA | 4 mA | Same supply current means no change to power budget or thermal design. |
| Package / Mounting | 8-Lead MSOP, Surface Mount | 8-Lead MSOP, Surface Mount | Identical package and footprint allow direct PCB replacement without layout changes. |
| RoHS / Lead-Free Status | RoHS Compliant, Lead-Free | Non-RoHS (contains lead) | The Z suffix denotes lead-free/RoHS compliance, which affects regulatory and manufacturing requirements. |
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 | AD8022ARM |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Slew Rate | 50V/µs | 50V/µs |
| Gain Bandwidth Product | 100 MHz | 100 MHz |
| -3 dB Bandwidth | 130 MHz | 130 MHz |
| Current - Input Bias | 2.5 µA | 2.5 µA |
| Voltage - Input Offset | 1.5 mV | 1.5 mV |
| Supply Current | 4mA | 4mA |
| Current - Output / Channel | 55 mA | 55 mA |
| Voltage - Supply Span(Min) | 4.5 V | 4.5 V |
| Voltage - Supply Span(Max) | 26 V | 26 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD8022ARMZ and AD8022ARM?
The AD8022ARMZ is the RoHS-compliant, lead-free (Pb-free) version of the AD8022ARM. Both are dual, low-noise, high-speed operational amplifiers in an 8-lead MSOP (RM) package. The "Z" suffix in AD8022ARMZ denotes the RoHS-compliant molding compound and lead finish, while AD8022ARM is the non-RoHS predecessor. Electrically, both share the same datasheet specifications.
Are AD8022ARMZ and AD8022ARM electrically identical?
Yes. Both parts are covered by the same Analog Devices AD8022 datasheet and share identical electrical specifications, including 120 MHz gain bandwidth, 50 V/µs slew rate, 2.6 nV/√Hz input voltage noise, and ±5 V to ±12 V supply operation. The only documented difference is the RoHS/lead-free status indicated by the "Z" suffix.
Can AD8022ARMZ be used as a direct drop-in replacement for AD8022ARM?
Yes, in most cases. Both are supplied in the same 8-lead MSOP package with identical pinout and the same electrical performance. The AD8022ARMZ is the recommended replacement since it is RoHS-compliant and is the actively supported orderable part number. Verify current availability and lifecycle status with Analog Devices or an authorized distributor before requalifying a design.
What does the "Z" suffix mean in AD8022ARMZ?
Per Analog Devices part numbering conventions, the "Z" suffix designates a RoHS-compliant device. It indicates the package uses lead-free plating and complies with the RoHS directive. AD8022ARM without the "Z" is the non-RoHS version.
What package and pinout do AD8022ARMZ and AD8022ARM use?
Both devices are offered in an 8-lead MSOP (Mini Small Outline Package), designated by the "RM" code in the part number. The pinout is identical between the two variants, with two op-amp channels, supply pins, and standard dual-op-amp pin assignments as specified in the AD8022 datasheet.
Are AD8022ARMZ and AD8022ARM rated for the same supply voltage and temperature range?
Yes. Both variants share the same datasheet ratings: operation from ±5 V to ±12 V dual supplies (or 5 V to 24 V single supply where applicable per datasheet) and the industrial temperature range specified by Analog Devices for the AD8022. The RoHS suffix does not alter electrical or thermal ratings.
Which part number should be used for new designs, AD8022ARMZ or AD8022ARM?
AD8022ARMZ should be used for new designs. It is the RoHS-compliant orderable variant and is the version generally recommended and stocked by authorized distributors. AD8022ARM is the legacy non-RoHS part number and may have limited availability or be obsolete; confirm lifecycle status with Analog Devices or a franchised distributor.