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) |
| 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 |
| Approx. Price (US$) |
| Package Size: mm2:W x L (PKG) |
| Input Bias Current (Max) (pA) |
| Output Current (Typ) (mA) |
| Additional Features |
| Architecture |
| OPA211 | OPA2211A |
|---|---|
| 1 | 2 |
| 4.5 | 4.5 |
| 36 | 36 |
| 45 | 45 |
| 27 | 27 |
| Out | Out |
| 0.05 | 0.15 |
| 0.15 | 0.35 |
| 3.6 | 3.6 |
| 1.1 | 1.1 |
| 120 | 120 |
| Catalog | Catalog |
| -40 to 125 | -40 to 125 |
| SOIC SON VSSOP | SO PowerPAD SON |
| 3.45 | 1ku | 5.20 | 1ku |
| See datasheet (SON),See datasheet (CDIP SB) | See datasheet (SON) |
| 125000 | 175000 |
| 30 | 30 |
| Shutdown | Shutdown |
| Bipolar | Bipolar |
| Sample & Buy | Sample & Buy |
