Part A
AD8626ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6117 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8626ARZ and AD8627AR-REEL are functionally compatible candidates for substitution, sharing the same amplifier core, supply range, and operating temperature range. The primary distinction is package and packaging format, so the AD8627AR-REEL can serve as a functional replacement where board layout accommodates the SOIC-8 package and reel packaging is acceptable.
Amplifier Core and Channel Count
High match
Supply Voltage Range
High match
Package Type
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD8627AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9523 Stückzahl
- Package
- SOIC-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 | AD8626ARZ | AD8627AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Channel count determines whether the part can serve multi-channel signal chains; a dual cannot directly replace a single in a one-channel layout without layout changes. |
| Package / Mounting | 8-Lead SOIC (surface mount) | 8-Lead SOIC (surface mount, tape and reel) | Both are 8-lead SOIC, but the pinout differs between single and dual devices, so footprint compatibility must be checked before substitution. |
| Supply Voltage Range | 2.7 V to 5 V (single supply) | 2.7 V to 5 V (single supply) | Matching supply ranges ensures the replacement operates correctly in the same rail configuration without regulator changes. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Low offset is critical for precision DC signal conditioning; identical offset specs preserve accuracy after substitution. |
| Input Bias Current (typ) | 1 pA | 1 pA | Ultra-low bias current suits high-impedance sensor interfaces; matching values keep input loading and error budgets unchanged. |
| Gain Bandwidth Product | 5 MHz | 5 MHz | GBW sets the achievable closed-loop bandwidth; identical GBW means AC performance is preserved in the same circuit. |
| Slew Rate | 5 V/µs | 5 V/µs | Slew rate limits large-signal response; matching values ensure transient behavior remains consistent. |
| Input Voltage Noise Density | 16 nV/√Hz | 16 nV/√Hz | Noise density governs the SNR floor in low-level signal paths; identical noise keeps system noise performance unchanged. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching temperature ratings confirm both parts are qualified for the same environmental conditions. |
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 | AD8626ARZ | AD8627AR-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 1 |
| 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 |
| 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 are the key differences between the AD8626ARZ and AD8627AR-REEL?
Both are dual precision JFET-input operational amplifiers from Analog Devices in an 8-lead SOIC package. The AD8626ARZ is supplied in tube packaging, while the AD8627AR-REEL is supplied on tape-and-reel for automated assembly. The AD8627 is specified with a wider operating temperature range of −40°C to +125°C, whereas the AD8626 is specified over −40°C to +85°C. Electrical performance is otherwise closely related, but the AD8627 offers higher slew rate and wider bandwidth per the respective datasheets.
Are the AD8626ARZ and AD8627AR-REEL pin-compatible?
Yes. Both devices are offered in the standard 8-lead SOIC (R-8) package with the same pinout: 1 = OUT A, 2 = −IN A, 3 = +IN A, 4 = V−, 5 = +IN B, 6 = −IN B, 7 = OUT B, 8 = V+. This allows them to share the same PCB land pattern, though electrical differences must still be validated for the target design.
Can the AD8627AR-REEL be used as a drop-in replacement for the AD8626ARZ?
Pin compatibility and package compatibility permit a physical drop-in, but a direct substitution requires validating the electrical differences. The AD8627 has a wider specified temperature range (−40°C to +125°C) and different AC specifications such as slew rate and gain bandwidth. The designer must confirm that supply voltage, input bias current, offset voltage, noise, and stability in the target circuit remain acceptable.
What is the difference in packaging between the AD8626ARZ and AD8627AR-REEL?
The AD8626ARZ suffix "Z" denotes a lead-free (RoHS-compliant) 8-lead SOIC in tube form. The AD8627AR-REEL is the same 8-lead SOIC body supplied on tape-and-reel, which is intended for high-volume automated pick-and-place assembly. Both are lead-free/RoHS-compliant per Analog Devices ordering information.
Do both parts share the same supply voltage range?
Yes. Both the AD8626 and AD8627 are specified for dual-supply operation of ±5 V to ±13 V (or single-supply 10 V to 26 V) per the Analog Devices datasheets. Designers should still verify the exact supply limits and any derating requirements in the latest revision of each datasheet.
Which part is better suited for high-temperature applications?
The AD8627AR-REEL is specified over −40°C to +125°C, while the AD8626ARZ is specified over −40°C to +85°C. For ambient temperatures above +85°C, the AD8627 is the appropriate choice, provided all other electrical parameters meet the design requirements.
Are the AD8626ARZ and AD8627AR-REEL both precision JFET-input amplifiers?
Yes. Both are dual, precision, low-noise JFET-input operational amplifiers from Analog Devices. Their JFET inputs provide very low input bias current, making them suitable for high-impedance sensor interfaces, photodiode amplification, and precision filtering. Exact bias current, offset, and noise figures should be taken from the respective datasheets.