COSINE Instrumentation, Zero-Drift & Precision Amplifiers: AD620, INA333, AD8221 + Zero-Drift Family

Instrumentation, zero-drift & precision building blocks

Signal conditioning — bridge amplifiers, sensor front-ends, medical and industrial measurement — leans on precision, zero-drift and instrumentation amplifiers. COSINE’s catalogue covers the core of this space: the COS521 / COS522 high-precision zero-drift family (25+ devices, cross-referencing ADI OP07 / OP1177 / OP2177 / OP277 and TI equivalents), current-sense amplifiers (COSINA180, cross-referencing INA180), and comparators.

COSINE also publishes instrumentation cross-references to ADI AD620 / AD8221 and TI INA333 / INA128 / INA129. Those instrumentation parts are in our cross-reference catalogue but are not yet on a live product page — send us the exact part number and we will source them for you.

Every part in the tables below that has a live product page links to it directly.

High-Precision Zero-Drift Op-Amps

36 V High-Precision Zero-Drift Op-Amps

Comparators

Current-Sense Amplifiers

Related parts & categories

Browse the live catalogue: 435. Representative parts: COS1333TRA, COS2180SRA, COS3201TR, COSINA180A3.

Frequently Asked Questions

What is the COSINE alternative to OP07 / OP1177 / AD620 / INA333?

The COS521 / COS522 zero-drift family cross-references ADI OP07, OP1177, OP2177 and OP277 in the same packages. For instrumentation amplifiers, COS620BRZ cross-references ADI AD620BRZ and COSINA333 (MRA / MRB / -20MR / -50MR) cross-references TI INA333. Verify gain-set behaviour, offset and input bias current against the original before substituting.

Are these suitable for bridge / sensor conditioning?

Zero-drift and instrumentation amplifier families such as COS521 / COS522 and the COSINA180 current-sense series are designed for exactly that — but always confirm CMRR, gain error and input range for your sensor.

Do you stock the imported originals?

Yes — we carry original ADI and TI operational, instrumentation and precision amplifiers and can cross-check availability for your BOM.

Cross-reference & compliance note

COSINE (科山芯创) cross-references on this page are compiled from the manufacturer’s published 2025 substitution list. A cross-reference indicates functional / parametric equivalence in the stated package — it is not a guarantee of pin-to-pin compatibility. Always verify the package, pinout and key electrical parameters against the original datasheet before substituting.

Shenzhen Jingteng Electronics is an independent distributor of COSINE and other brands. We are not an authorised agent of Analog Devices, Texas Instruments, Microchip, Infineon, NXP, Maxim or any other original manufacturer; those brand names are used only to identify the parts being cross-referenced.

Parts shown in grey without a link are in our COSINE cross-reference catalogue but not yet on a live product page — send us the exact part number and we will source it for you.