2.2nV/rtHz, 18MHz, Precision, RRO, 36V Operational Amplifier - OPA2209


2.2nV/rtHz, 18MHz, Precision, RRO, 36V Operational Amplifier



The OPA209 series of precision operational amplifiers achieve very low voltage noise density (2.2 nV/√Hz) with a supply current of only 2.5 mA (maximum). This series also offers rail-to-rail output swing, which helps to maximize dynamic range.

In precision data acquisition applications, the OPA209 provides fast settling time to 16-bit accuracy, even for 10-V output swings. This excellent ac performance, combined with only 150 µV (maximum) of offset and low drift over temperature, makes the OPA209 very suitable for fast, high-precision applications.

The OPA209 is specified over a wide dual power-supply range of ±2.25 V to ±18 V, or single-supply operation from 4.5 V to 36 V.

The OPA209 is available in the 5-pin SOT-23, 8-pin VSSOP, and the standard 8-pin SOIC packages. The dual OPA2209 comes in both 8-pin VSSOP and 8-pin SOIC packages. The quad OPA4209 is available in the 14-pin TSSOP package.

The OPA209 series is specified from –40°C to 125°C.


  • Low Voltage Noise: 2.2 nV/√Hz at 1 kHz
  • 0.1-Hz to 10-Hz Noise: 130 nVPP
  • Low Quiescent Current: 2.5 mA/Ch (Maximum)
  • Low Offset Voltage: 150 µV (Maximum)
  • Gain Bandwidth Product: 18 MHz
  • Slew Rate: 6.4 V/µs
  • Wide Supply Range: ±2.25 V to ±18 V, 4.5 V to 36 V
  • Rail-to-Rail Output
  • Short-Circuit Current: ±65 mA
  • Available in 5-Pin SOT-23, 8-Pin MSOP, 8-Pin SOIC, and 14-Pin TSSOP Packages
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Parametrics Compare all products in Precision Op Amps

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)
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)
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
Output Current (Typ) (mA)
Additional Features
OPA2209 OPA209 OPA4209
2    1    4   
4.5    4.5    4.5   
36    36    36   
18    18    18   
6.4    6.4    6.4   
Out    Out    Out   
0.15    0.15    0.15   
1    1    1   
2.2    2.2    2.2   
2.2    2.2    2.2   
130    130    130   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
1.65 | 1ku    1.10 | 1ku    2.90 | 1ku   
See datasheet (SON)    5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
14TSSOP: 32 mm2: 6.4 x 5(TSSOP)   
4500    4500    4500   
65    65    65   
N/A    N/A    N/A   
Bipolar    Bipolar    Bipolar   

WEBENCH® Designer OPA2209

Amplifier Topology
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 125.0 °C