OPA2211A 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier | TI.com

OPA2211A (ACTIVE)

1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier

 

For similar performance, higher precision (5µV Vos), lower power consumption (2.2mA), and lower input bias current (0.3nA maximum), see the  OPA2210.

Description

The OPAx211 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 OPAx211 series make these devices an excellent choice as a loop filter amplifier in PLL applications.

In precision data acquisition applications, the OPAx211 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 OPAx211 series suitable for driving high-precision 16-bit analog-to-digital converters (ADCs) or buffering the output of high-resolution digital-to-analog converters (DACs).

The OPAx211 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 (OPA2211) is available in a 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.

Features

  • Low Voltage Noise: 1.1 nV/√Hz at 1 kHz
  • Input Voltage Noise: 80 nVPP (0.1 to 10 Hz)
  • THD + N: –136 dB (G = 1, ƒ = 1 kHz)
  • Offset Voltage: 125 µV (Maximum)
  • Offset Voltage Drift: 0.35 µV/°C (Typical)
  • Low Supply Current: 3.6 mA/Ch (Typical)
  • Unity-Gain Stable
  • Gain Bandwidth Product:
    • 80 MHz (G = 100)
    • 45 MHz (G = 1)
  • Slew Rate: 27 V/µs
  • 16-Bit Settling: 700 ns
  • Wide Supply Range:
    • ±2.25 to ±18 V, 4.5 V to 36 V
  • Rail-to-Rail Output
  • Output Current: 30 mA
  • SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8

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Parametrics

Compare all products in Precision op amps (Vos<1mV) Email Download to Excel
Part number Order 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
OPA2211A Order now 2     4.5     36     45     27     Out     0.15     0.35     3.6     1.1     120     Catalog     -40 to 125     SO PowerPAD | 8
SON | 8    		 8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
See datasheet (SON)    		 175000     30     Shutdown
Small Size    		 Bipolar    
OPA2209 Order now 2     4.5     36     18     6.4     Out     0.15     1     2.2     2.2     130     Catalog     -40 to 125     SOIC | 8
VSSOP | 8    		 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    		 4500     65    
   		 Bipolar    
OPA2210 Order now 2     4.5     36     18     6.4     Out     0.035     0.1     2.2     2.2     140     Catalog     -40 to 125     VSSOP | 8     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     2000     65    
   		 Bipolar