The OPA211 series of precision operational amplifiers achieves very low 1.1-nV/√Hz noise density with a supply current of only 3.6 mA. This series also offers rail-to-rail output swing, which maximizes dynamic range.
The extremely low voltage and low current noise, high-speed, and wide output swing of the OPA211 series make these devices an excellent choice as a loop filter amplifier in PLL applications.
In precision data acquisition applications, the OPA211 series of operational amplifiers provides 700-ns settling time to 16-bit accuracy throughout 10-V output swings. This ac performance, combined with only 125 µV of offset and 0.35 µV/°C of drift over temperature, makes the OPA211 ideal for driving high-precision 16-bit analog-to-digital converters (ADCs) or buffering the output of high-resolution digital-to-analog converters (DACs).
The OPA211 series is specified over a wide dual-power supply range of ±2.25 to ±18 V, or for single-supply operation from 4.5 to 36 V.
The OPA211 is available in the small SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8 packages. A dual version, the OPA2211, is available in the SON-8 (3 mm × 3 mm) or an SO-8 PowerPAD™ package. This series of operational amplifiers is specified from TA = –40°C to +125°C.
|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 Size: mm2:W x L (PKG)|
|Input Bias Current (Max) (pA)|
|Output Current (Typ) (mA)|
|-40 to 125||-40 to 125|
| SOIC |
| SOIC |
|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)
|Order Now||Order Now|
|High-Temperature||OPA211-HT||High-Temperature product for harsh environments|
|Enhanced Product||OPA211-EP||Supports Defense, Aerospace and Medical Applications|