OPA2211-EP - 1.1 nV/√Hz Noise, Low Power, Precision Operational Amplifier

The OPA2211-EP 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 OPA2211-EP series make these devices an excellent choice as a loop filter amplifier in PLL applications.

In precision data acquisition applications, the OPA2211-EP 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 OPA2211-EP 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 OPA2211-EP is specified over a wide dual-power supply range of ±2.25 V to ±18 V, or for single-supply operation from 4.5 to 36 V.

The OPA2211-EP is available in a small DFN-8 (3-mm × 3-mm) package. These operational amplifiers are specified from T_J = -55°C to 125°C.

• Low Voltage Noise: 1.1 nV/√Hz at 1 kHz
• Input Voltage Noise: 80 nV_PP (0.1 to 10 Hz)
• THD+N: -136 dB (G = 1, ƒ = 1 kHz)
• Offset Voltage: 180 µV (Max)
• Offset Voltage Drift: 0.35 µV/°C (Typ)
• Low Supply Current: 3.6 mA/Ch (Typ)
• 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 V to ±18 V, +4.5 V to +36 V
• Rail-to-Rail Output
• Output Current: 30 mA
• Supports Defense, Aerospace, and Medical Applications
  • Controlled Baseline
  • One Assembly and Test Site
  • One Fabrication Site
  • Available in Military (-55°C to 125°C) Temperature Range⁽¹⁾
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

Applications

• PLL Loop Filter
• Low-Noise, Low-Power Signal Processing
• 16-Bit ADC Drivers
• DAC Output Amplifiers
• Active Filters
• Low-Noise Instrumentation Amplifiers
• Ultrasound Amplifiers
• Professional Audio Preamplifiers
• Low-Noise Frequency Synthesizers
• Infrared Detector Amplifiers
• Hydrophone Amplifiers
• Geophone Amplifiers
• Medical

⁽¹⁾Additional temperature ranges available - contact factory
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