The OPAx189 (OPA189 and OPA2189) 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 start-up system. These features and excellent ac performance, combined with only 0.4 µV of offset voltage and 0.005µV/°C of drift over temperature for the single-channel version, make the OPAx189 a great choice 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 @ 25 C) (Max) (mV) |
Offset drift (Typ) (uV/C) |
Iq per channel (Typ) (mA) |
Vn at 1 kHz (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
VSSOP | 8 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
SOIC | 8
SOT-23 | 5 VSSOP | 8 |
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
8SOIC: 19 mm2: 3.91 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) |
8SOIC: 19 mm2: 3.91 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) |
8SOIC: 19 mm2: 3.91 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 |
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