Select 40V RRIO op-amps for comms, sensors, ADC: COS2170/2171/2172
COSINE’s 40V RRIO class is listed for: communications, sensor amplification, A/D converters, portable systems, medical instruments. Use this tier when the rail is already (or going to) 36–40 V industrial—not by over-driving the 16V RRIO family, and not as a stand-in for low-voltage zero-drift parts.
Metrics follow the 2025 catalog (1/4-channel COS244/170/171/172 siblings exist—confirm package with Jarwey). Request datasheets from Jarwey.
Product features
High voltage, low power, rail-to-rail I/O, low noise density, RF immunity.
Applications (vendor-stated)
Communications · sensor amps · A/D converters · portable systems · medical instruments.
40V RRIO table
| PN | Ch | Supply (V) | GBP (MHz) | Iq (µA) | Slew | Vos max (mV) | Pkg | Cross-ref | Page |
|---|---|---|---|---|---|---|---|---|---|
| COS2170SRA | 2 | 3.0~40 | 1.5 | 170 | 1.0 V/µs | 2.0 | SOP-8 | OPA2170 / TLV9302 | 922 |
| COS2171SRA | 2 | 4.5~40 | 5.0 | 700 | 3.0 V/µs | 2.0 | SOP-8 | OPA2171 | 923 |
| COS2172SRA | 2 | 4.5~40 | 10 | 1200 | 5.0 V/µs | 2.0 | SOP-8 | OPA2172 / TLV2172 | 924 |
| COS171TR | 1 | 4.5~40 | 5.0 | 700 class | 3.0 V/µs | 2.0 | SOT-23-5 | OPA171 | 925 |
Bandwidth ladder: 0.5 / 1.5 / 5 / 10 MHz. Cross-check OPA171 / OPA2170 / OPA2171 / OPA2172 (verify).
Checklist mapped to vendor applications
- Rail: truly 40V-class vs 16V RRIO?
- ADC / sensor: 1.5 vs 5 vs 10 MHz GBP for sampling/settling.
- Comms / portable medical: Iq 170–1200 µA and RF immunity in budget?
- Vos: 2 mV OK? (microvolt jobs → zero-drift.)
- Channel / package: dual SOP-8 vs single SOT-23-5.
- Samples: request datasheets/pilot qty from Jarwey.
Pages & contact
Send incumbent OPA171-class PNs and rails to kerry.w@jarwey.cn · Contact.
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