CROSS-REFERENCE ALTERNATIVE
COS8091SOT is a Chinese-manufactured 5V High-Speed Op-Amp from COSINE (科山芯创) that cross-references to AD8091ART (ADI).
It is a SOT23-5 device positioned as a domestic-supply option against the imported: shorter lead times, no allocation risk and a stable price for volume production. Because the parts are not pin-identical in every case, the engineering checklist below lists what to verify before you commit.
Cross-reference · Before you substitute · Related parts · FAQ · Request a quote
COS8091SOT — 5V High-Speed Op-Amp, alternative to AD8091ART
COS8091SOT is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for AD8091ART (ADI). Imported parts in this class are frequently subject to allocation, long lead times and steep price swings. A Chinese-manufactured equivalent removes that exposure: the parts are production-validated in industrial, consumer and automotive designs and ship from stock on a short lead time.
Cross-reference chart — which imported parts does COS8091SOT replace?
Every imported part number that COS8091SOT is published as a cross-reference alternative to, per the COSINE (科山芯创) 2025 selection table:
| imported part number | brand | Replaced by (this part) |
|---|---|---|
| AD8091ART | ADI | COS8091SOT |
Cross-reference means functional equivalence in the same application role. It is not a blanket claim of pin-for-pin identity — confirm package, pinout and the parameters listed below before you release a design change.
Device information
| Part number | COS8091SOT |
| Manufacturer | COSINE (科山芯创) |
| Device class | 5V High-Speed Op-Amp |
| Package | SOT23-5 |
| Pin Count | 5 |
| Verified and new, traceable date code | |
| Stock | In stock, ships within 24 hours |
| Description | 5V High-Speed Op-Amp, SOT23-5 package. |
What to verify before substituting COS8091SOT
These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:
- Supply range at 5 V single supply and the input common-mode range available
- Slew rate, settling time and rise/fall time against the required edge speed
- Gain-bandwidth product and stability with capacitive loads — buffer with series R if needed
- Output current and swing at the load
- Input offset voltage and bias current
- Supply current and thermal dissipation in a small package
- Pinout, and whether the needed external compensation
Typical applications
- Video and fast ADC driver stages
- Active filters and anti-aliasing at 5 V
- Portable instrumentation and handheld test gear
- Photodiode and pulse amplification
- Communication and IF signal chains
- Fast DAC output buffers
Related COSINE parts and alternatives
Other {BRAND} parts in the same device family or the same device class — useful when you are cross-referencing a whole BOM rather than a single line item.
| COSINE part | Package | Cross-references to | Relation |
|---|---|---|---|
| COS2353SR | SOP8 | OPA2353UA, OPA2350 | 5V High-Speed Op-Amp |
| COS8051SOT | SOT23-5 | AD8051ARTZ-REEL | 5V High-Speed Op-Amp |
| COS8052SR | SOP8 | AD8052ARZ | 5V High-Speed Op-Amp |
| COS8052MR | MSOP8 | AD8052ARMZ | 5V High-Speed Op-Amp |
| COS8054SOP | SOP14 | AD8054ARZ | 5V High-Speed Op-Amp |
| COS8054TR | TSSOP14 | AD8054ARU | 5V High-Speed Op-Amp |
| COS8092SR | SOP8 | AD8092ARZ | 5V High-Speed Op-Amp |
| COS8092MR | MSOP8 | AD8092ARMZ | 5V High-Speed Op-Amp |
Frequently asked questions
What does COS8091SOT replace?
According to the COSINE (科山芯创) 2025 cross-reference table, COS8091SOT is published as an alternative to AD8091ART (ADI).
Is COS8091SOT a pin-to-pin drop-in for AD8091ART?
Cross-reference means the part is intended for the same application role; it is not a blanket guarantee of pin-for-pin identity. Check package, pinout and the parameters listed under “What to verify” above, or send us your BOM and we will confirm before you commit.
Can you supply the AD8091ART as well?
Yes. We source both the imported and the Chinese-manufactured alternative, so you can compare price, lead time and availability on the same quote.
What is the MOQ and lead time for COS8091SOT?
MOQ 1 pc. COS8091SOT is held in stock and ships within 24 hours; quotes are returned within 2 business hours. We ship worldwide including India, Vietnam and the Middle East.
Request a quote for COS8091SOT
Send us the part number and target quantity — we reply within 2 business hours with price, stock and a cross-reference confirmation.
Request a quote More Amplifiers / Data Conversion
Genuine original parts guaranteed — traceable lot & date code, X-ray / visual inspection and third-party test supported before shipment.
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