AD620AN Alternatives and Equivalents
AD620 instrumentation amplifier · Analog Devices · verified against manufacturer datasheet parameters
AD620AN — a AD620 instrumentation amplifier part from Analog Devices — is one of the most-searched part numbers in its category. This page compares its verified pin-compatible variants and closest family alternates, using manufacturer datasheet parameters, and shows what is actually available from stock.
The table below distinguishes true drop-in replacements (same package and pinout) from family alternates that need design review. Specs marked "—" vary by suffix or were not published in the source data — confirm on the datasheet before committing.
This cross-reference is part of our guide to obsolete electronic components — These cross-references cover discontinued, EOL and allocation-constrained parts — the full risk framework is in our pillar guide.
Is the AD620AN discontinued?
AD620AN belongs to Analog Devices' AD620 in-amp family — a 30-year industry standard still in active production. Grade suffixes (A, B) encode accuracy; package suffixes (N = PDIP, AR = SOIC) encode the case. Because it is so widely designed-in, it is also one of the most remarked parts on the open market — buy it inspected.
Pin-to-pin compatible alternatives
"Drop-in" means same package and pinout; other rows are family alternates that need design review.
| Part Number | Compatibility | Package |
|---|---|---|
| AD620AN (target) | — | PDIP |
| AD620ACHIP | Drop-in (same package & pinout) | PDIP |
| AD620ANZ | Drop-in (same package & pinout) | PDIP |
| AD620AR | Family alternate — review design | PDIP |
| AD620AR-REEL7 | Family alternate — review design | PDIP |
| AD620ARZ | Family alternate — review design | PDIP |
AD620AN vs AD620ACHIP: what actually differs
Within the compared parameter set these codes match on the published specs; the differences live in suffix details — packing, temperature grade or flash/density options. Send both codes if you want us to confirm the delta on your specific requirement.
Migration checklist: re-validate before you swap
- A vs B grade = gain accuracy and offset specs — B is the tighter grade, drop-in for A
- N (PDIP) vs AR (SOIC) are different packages — not interchangeable on the same footprint
- Gain is set by one external resistor (RG) — the 49.4 formula stays valid across grades
- Verify input common-mode range against your supply rails
- Legacy pin-compatible alternatives (INA118/INA128 class) exist but verify specs line by line
Where to source AD620AN and its alternates
We stock AD620AN and its family variants in Hong Kong with date codes stated on every quote. Each lot passes marking verification; X-ray and electrical testing through accredited partner labs are available on request, with the report delivered before final payment.
Pricing follows the live spot market, so quotes carry a stated validity window — typically 24 to 48 hours on volatile lines. Send your quantity and required date code and the desk replies within 2 working hours.
AD620AN can also ship consolidated with the rest of your BOM — one shipment, one invoice, one inspection standard. For recurring demand we reserve stock and schedule multi-lot releases, which smooths both price exposure and availability risk across your build calendar.
Guides: obsolete component sourcing · counterfeit detection methods
FAQ
What is the difference between AD620A and AD620B?
Accuracy grade: B has tighter offset and gain-error specs and is a drop-in upgrade for A.
AD620AN vs AD620ARZ?
Package: N = 8-pin PDIP (through-hole), AR = SOIC-8 (SMD). Same die, different case.
Is the AD620 discontinued?
No — it remains in active production after three decades, which also makes it a counterfeit magnet. Buy inspected stock.
Is the INA128 a drop-in replacement?
The pinout matches (8-pin in-amp standard), but offset, drift and noise specs differ — verify against your error budget.
How do you verify AD620 lots?
Marking inspection standard; electrical test through partner labs available on request.
What is the MOQ?
One piece.
Can I see photos or test reports before ordering?
Yes — label and top-marking photos of the actual lot are standard, and X-ray or lab reports can be arranged before payment on first orders. Tell the desk what your incoming inspection requires.
Do you support scheduled production deliveries?
Yes. For recurring demand we reserve stock of AD620AN or its alternates and release shipments against your build schedule — one agreement instead of repeated spot buys.
Start an RFQ — our Hong Kong desk replies within 2 working hours.