36V zero-drift op-amps for high-rail current sense: COS2180/2182/4182

COSINE’s 36V zero-drift class targets the same vendor apps—current sensing, wearables, sensor amps, battery hardware—on a 4–36 V rail. High-side / wide common-mode current sense with microvolt offset belongs here; 5V battery domain → 5V zero-drift ladder.

Catalog siblings: COS180/2180/4180 (2 MHz), COS182/2182/4182 (5 MHz), COS189/2189/4189 (10 MHz). Request datasheets from Jarwey.

Product features

Microvolt offset, low Iq, RRIO, low noise, RF immunity, high supply voltage.

Applications (vendor-stated)

Current sensing · wearables · sensor amps · battery hardware (high-rail cases).

36V zero-drift table

10 MHz COS189 tier on request. Cross-check OPA2180 / OPA2188 / OPA2182 / OPA4182 (verify).

Checklist mapped to vendor applications

1. Current sense: common-mode above 5.5 V? shunt drop vs 10 µV Vos.
2. Sensors: 2 vs 5 vs 10 MHz; noise 50 vs 20 nV/√Hz.
3. Iq: 500–1200 µA/ch acceptable on the HV rail?
4. Channels: dual SOP-8 vs quad SOP-14.
5. vs 40V RRIO: need microvolts → this tier; 2 mV OK → 40V RRIO.
6. Samples: request from Jarwey.

Pages & contact

• COS2180SRA · COS2182SR · COS4182U

Send OPA2180/2182 PNs and current-sense common-mode to kerry.w@jarwey.cn.