The OPAx189 (OPA189 and OPA2189) series of high-precision operational amplifiers are ultra-low noise, fast-settling, zero-drift devices that provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled startup system. These features and excellent ac performance, combined with only 0.4 µV of offset voltage and 0.005 µV/°C of drift over temperature, makes the OPAx189 well-suited for precision instrumentation, signal measurement, and active filtering applications. Moreover, the MUX-friendly input architecture prevents inrush current when applying large input differential voltages which improves settling performance in multi-channel systems, all while providing robust ESD protection during shipment, handling, and assembly. All versions are specified from –40°C to +125°C.
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| Number of Channels (#) |
| Total Supply Voltage (Min) (+5V=5, +/-5V=10) |
| Total Supply Voltage (Max) (+5V=5, +/-5V=10) |
| GBW (Typ) (MHz) |
| Slew Rate (Typ) (V/us) |
| Rail-to-Rail |
| Vos (Offset Voltage @ 25C) (Max) (mV) |
| Offset Drift (Typ) (uV/C) |
| Iq per channel (Typ) (mA) |
| Vn at 1kHz (Typ) (nV/rtHz) |
| CMRR (Typ) (dB) |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Input Bias Current (Max) (pA) |
| Output Current (Typ) (mA) |
| Features |
| Architecture |
| OPA189 | OPA180 | OPA187 | OPA188 |
|---|---|---|---|
| 1 | 1 | 1 | 1 |
| 4.5 | 4 | 4.5 | 4 |
| 36 | 36 | 36 | 36 |
| 14 | 2 | 0.55 | 2 |
| 20 | 0.8 | 0.2 | 0.8 |
|
In to V- Out |
In to V- Out |
In to V- Out |
In to V- Out |
| 0.003 | 0.075 | 0.01 | 0.025 |
| 0.005 | 0.1 | 0.005 | 0.03 |
| 1.3 | 0.45 | 0.1 | 0.425 |
| 5.2 | 10 | 20 | 8.8 |
| 168 | 114 | 114 | 114 |
| Catalog | Catalog | Catalog | Catalog |
| -40 to 125 | -40 to 105 | -40 to 125 | -40 to 125 |
| SOIC | 8 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
SOT-23 | 5
VSSOP | 8 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
| 8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8) |
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5) 8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5) 8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
| 300 | 1000 | 350 | 1400 |
| 65 | 18 | 30 | 18 |
|
EMI Hardened High Cload Drive Zero Drift |
EMI Hardened Zero Drift |
EMI Hardened Zero Drift |
EMI Hardened Zero Drift |
| CMOS | CMOS | CMOS | CMOS |
| Order Now | Order Now | Order Now | Order Now |
