Overview
The OPA211SHKQ, produced by Texas Instruments, is a precision operational amplifier known for its exceptionally low noise and high performance. This device is part of the OPAx211 series, which achieves a very low voltage noise density of 1.1 nV/√Hz at 1 kHz and operates with a supply current of only 3.6 mA per channel. The OPA211SHKQ is designed to offer rail-to-rail output swing, maximizing dynamic range, and is suitable for a wide range of applications requiring high precision and low noise.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Voltage Noise Density | 1.1 nV/√Hz at 1 kHz | nV/√Hz |
| Input Voltage Noise (0.1 Hz to 10 Hz) | 80 nVPP | nVPP |
| Total Harmonic Distortion + Noise (THD + N) | –136 dB (G = 1, f = 1 kHz) | dB |
| Offset Voltage | 125 μV (maximum) | μV |
| Offset Voltage Drift | 0.35 μV/°C (typical) | μV/°C |
| Supply Current | 3.6 mA/Ch (typical) | mA |
| Gain Bandwidth Product | 45 MHz (G = 1), 80 MHz (G = 100) | MHz |
| Slew Rate | 27 V/μs | V/μs |
| Settling Time (16-bit accuracy) | 700 ns | ns |
| Supply Voltage Range | ±2.25 V to ±18 V, 4.5 V to 36 V | V |
| Output Current | 30 mA | mA |
| Operating Temperature Range | –55°C to 210°C | °C |
| Package Options | SON-8 (3 mm × 3 mm), VSSOP-8, SOIC-8 |
Key Features
- Low voltage noise: 1.1 nV/√Hz at 1 kHz
- Low input voltage noise: 80 nVPP (0.1 Hz to 10 Hz)
- High precision with low offset voltage and drift: 125 μV and 0.35 μV/°C respectively
- Low supply current: 3.6 mA per channel
- Unity-gain stable and high gain bandwidth product
- High slew rate: 27 V/μs
- Fast settling time: 700 ns to 16-bit accuracy
- Rail-to-rail output swing
- Wide supply voltage range: ±2.25 V to ±18 V, 4.5 V to 36 V
- High output current capability: 30 mA
- Compact package options: SON-8, VSSOP-8, SOIC-8
Applications
- Ultrasound scanners
- Semiconductor test equipment
- X-ray systems
- Lab and field instrumentation
- Data acquisition (DAQ) systems
- Radar systems
- Wireless communications test equipment
- Seismic data acquisition
- DC power supplies, AC sources, and electronic loads
- Power analyzers and source measurement units (SMUs)
- Down-hole drilling and high-temperature environments
Q & A
- What is the input voltage noise density of the OPA211SHKQ?
The input voltage noise density of the OPA211SHKQ is 1.1 nV/√Hz at 1 kHz.
- What is the typical supply current of the OPA211SHKQ?
The typical supply current of the OPA211SHKQ is 3.6 mA per channel.
- What is the offset voltage and drift of the OPA211SHKQ?
The offset voltage is 125 μV (maximum), and the offset voltage drift is 0.35 μV/°C (typical).
- What is the gain bandwidth product of the OPA211SHKQ?
The gain bandwidth product is 45 MHz (G = 1) and 80 MHz (G = 100).
- What is the slew rate of the OPA211SHKQ?
The slew rate of the OPA211SHKQ is 27 V/μs.
- What is the settling time of the OPA211SHKQ to 16-bit accuracy?
The settling time to 16-bit accuracy is 700 ns.
- What is the output current capability of the OPA211SHKQ?
The output current capability is 30 mA.
- What are the package options available for the OPA211SHKQ?
The package options include SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8.
- What is the operating temperature range of the OPA211SHKQ?
The operating temperature range is –55°C to 210°C.
- What are some typical applications of the OPA211SHKQ?
Typical applications include ultrasound scanners, semiconductor test equipment, X-ray systems, lab and field instrumentation, and more.
