CROSS-REFERENCE ALTERNATIVE
COS721TR is a Chinese-manufactured Low-Noise Op-Amp from COSINE (科山芯创) that cross-references to LMV721IDBVR (TI).
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
COS721TR — Low-Noise Op-Amp, alternative to LMV721IDBVR
COS721TR is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for LMV721IDBVR (TI). 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 COS721TR replace?
Every imported part number that COS721TR 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) |
|---|---|---|
| LMV721IDBVR | TI | COS721TR |
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 | COS721TR |
| Manufacturer | COSINE (科山芯创) |
| Device class | Low-Noise Op-Amp |
| Package | SOT23-5 |
| Pin Count | 5 |
| Verified and new, traceable date code | |
| Stock | In stock, ships within 24 hours |
| Description | Low-Noise Op-Amp, SOT23-5 package. |
What to verify before substituting COS721TR
These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:
- Input voltage noise density at the frequency your signal occupies, plus the 1/f corner
- Current noise and its contribution across the source impedance — the reason a low-voltage-noise part can still be wrong here
- Gain-bandwidth product and closed-loop bandwidth
- Total harmonic distortion at the output amplitude you need
- Input bias current and offset voltage
- Output drive into the real load
- Package and pinout, and any required supply decoupling
Typical applications
- Audio preamplifiers and microphone front ends
- Sensor and transducer interfaces
- PLL loop filters and VCO control
- Precision instrumentation
- Photodiode and low-level signal amplification
- Communication receive paths
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 |
|---|---|---|---|
| COS721SR | SOP8 | — | Same series |
| COS822SR | SOP8 | LMV822MX/NOPB, AD8632 | Low-Noise Op-Amp |
| COS2374SR | SOP8 | OPA2374AID, MCP6492 | Low-Noise Op-Amp |
| COS722SR | SOP8 | LMV722IDR | Low-Noise Op-Amp |
| COS722MR | MSOP8 | — | Low-Noise Op-Amp |
| COS724SR | SOP14 | MCP6024 | Low-Noise Op-Amp |
| COS724TR | TSSOP14 | — | Low-Noise Op-Amp |
Frequently asked questions
What does COS721TR replace?
According to the COSINE (科山芯创) 2025 cross-reference table, COS721TR is published as an alternative to LMV721IDBVR (TI).
Is COS721TR a pin-to-pin drop-in for LMV721IDBVR?
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 LMV721IDBVR 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 COS721TR?
MOQ 1 pc. COS721TR 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 COS721TR
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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