Part A
AD8626ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1213 PCS
- Package
- TSSOP-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8626ARMZ and AD8626ARMZ-R2 are functionally equivalent operational amplifiers sharing identical core specifications, making the -R2 variant a viable replacement candidate for the base part number. Both devices are drop-in compatible in terms of electrical performance and package footprint, with the only meaningful distinction being the manufacturer's packaging and ordering format. Designers can substitute one for the other without circuit redesign, provided the tape-and-reel or cut-tape delivery format of the -R2 variant aligns with their production requirements.
Amplifier Type and Channel Count
High match
Package and Pinout
High match
Supply Voltage and Current
High match
Ordering and Packaging Format
Validation required
Parts at a glance
Part B
AD8626ARMZ-R2
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2601 PCS
- Package
- TSSOP-8
- Series
- Linear - Amplificadores - Instrumentação, 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 | AD8626ARMZ | AD8626ARMZ-R2 | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET Input, Rail-to-Rail Output, Dual | JFET Input, Rail-to-Rail Output, Dual | Confirms both parts are the same amplifier topology, so functional behavior is identical. |
| Number of Channels | 2 | 2 | Channel count must match for circuit compatibility in dual-amplifier designs. |
| Supply Voltage Range | 5 V to 26 V (single) / ±2.5 V to ±13 V (dual) | 5 V to 26 V (single) / ±2.5 V to ±13 V (dual) | Determines whether the part can operate within the target system's power rails. |
| Gain Bandwidth Product | 5 MHz | 5 MHz | Sets the achievable signal bandwidth and closed-loop gain performance. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Low offset is critical for precision DC signal accuracy and error budget. |
| Input Bias Current (typ) | 1 pA | 1 pA | Ultra-low JFET bias current minimizes errors in high-impedance sensor interfaces. |
| Package / Mounting | 8-Lead MSOP, Surface Mount | 8-Lead MSOP, Surface Mount | Package and footprint must match for drop-in PCB compatibility. |
| Packaging / Ordering Format | Tube | Tape & Reel (R2 suffix) | Only the shipping/packaging format differs; the silicon is identical, so the parts are functionally interchangeable but suited to different assembly processes. |
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 | AD8626ARMZ | AD8626ARMZ-R2 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 5V/µs | 5V/µs |
| Gain Bandwidth Product | 5 MHz | 5 MHz |
| Current - Input Bias | 0.25 pA | 0.25 pA |
| Voltage - Input Offset | 350 µV | 350 µV |
| Supply Current | 710µA (x2 Channels) | 710µA (x2 Channels) |
| Current - Output / Channel | 15 mA | 15 mA |
| Voltage - Supply Span(Min) | 5 V | 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 AD8626ARMZ and AD8626ARMZ-R2?
Both parts are the same AD8626 dual precision JFET-input operational amplifier in an 8-lead MSOP (RM-8) package. The suffix difference refers to packaging format: AD8626ARMZ is the standard tube/rail packaging orderable part number, while AD8626ARMZ-R2 denotes a tape-and-reel packaging variant (R2 = 250-unit reel). The electrical die and package are identical; only the shipping/packaging quantity and format differ.
Are AD8626ARMZ and AD8626ARMZ-R2 electrically and functionally identical?
Yes. Both orderable part numbers correspond to the same AD8626 amplifier die in the same 8-lead MSOP package, so specified electrical parameters such as supply voltage range, input bias current, offset voltage, and bandwidth are identical. The distinction is limited to packaging and reel quantity, not device performance.
Can AD8626ARMZ-R2 be used as a drop-in replacement for AD8626ARMZ?
Yes, from a board-level perspective the devices are the same package and pinout, so a reeled part can populate the same PCB land pattern. The only practical consideration is the packaging quantity supplied (R2 is a 250-piece reel), which affects manufacturing handling rather than electrical interchangeability.
What package do AD8626ARMZ and AD8626ARMZ-R2 use?
Both are supplied in the 8-lead MSOP (Mini Small Outline Package), designated by the "RM" code in the part number and commonly referenced as RM-8. The "Z" suffix indicates RoHS-compliant lead finish per Analog Devices ordering conventions.
Are both AD8626ARMZ and AD8626ARMZ-R2 RoHS compliant?
Yes. The "Z" suffix in both orderable part numbers denotes the RoHS-compliant version of the AD8626 in the MSOP package, consistent with Analog Devices' lead-free/RoHS part numbering convention.
What is the difference in reel quantity between AD8626ARMZ and AD8626ARMZ-R2?
AD8626ARMZ-R2 is supplied on a 250-piece tape-and-reel. AD8626ARMZ is the standard orderable part typically supplied in tube/rail format. Buyers should confirm the exact packaging quantity on the distributor or manufacturer order page, since packaging quantities are defined by the manufacturer's ordering guide.
Which part number should be selected for automated SMT assembly?
For automated surface-mount assembly, the tape-and-reel variant AD8626ARMZ-R2 is generally preferred because reeled packaging is compatible with pick-and-place feeders. AD8626ARMZ in tube/rail format is more suited to low-volume or manual handling. Selection depends on line configuration and required quantity, not on device performance.