Overview
The OPA211AIDRG4, produced by Texas Instruments, is a precision operational amplifier that stands out for its ultra-low noise, low power consumption, and high-speed performance. This device is part of the OPAx211 series, which is designed to achieve very low 1.1-nV/√Hz noise density with a supply current of only 3.6 mA. The OPA211AIDRG4 is particularly suited for applications requiring high accuracy and dynamic range, such as precision data acquisition, test and measurement, and high-resolution analog-to-digital and digital-to-analog conversions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth Product | 80 MHz (G = 100), 45 MHz (G = 1) | |
| Slew Rate | 27 V/μs | |
| Settling Time (16-Bit Accuracy) | 700 ns | |
| Supply Voltage Range | ±2.25 to ±18 V, 4.5 V to 36 V | |
| Input Voltage Noise Density | 1.1 nV/√Hz at 1 kHz | |
| Input Voltage Noise (0.1 to 10 Hz) | 80 nVpp | |
| Offset Voltage | 125 μV (maximum) | |
| Offset Voltage Drift | 0.35 μV/°C (typical) | |
| Supply Current | 3.6 mA (typical) | |
| Output Current | 30 mA | |
| Output Swing | Rail-to-rail | |
| Package Options | SON-8 (3 mm × 3 mm), VSSOP-8, SOIC-8 | |
| Operating Temperature Range | –40°C to +125°C |
Key Features
- Ultra-low noise: 1.1 nV/√Hz at 1 kHz and 80 nVpp (0.1 to 10 Hz).
- Low power consumption: 3.6 mA supply current per channel.
- High-speed performance: 80 MHz gain bandwidth product (G = 100) and 27 V/μs slew rate.
- Rail-to-rail output swing, maximizing dynamic range.
- Wide supply voltage range: ±2.25 to ±18 V, 4.5 V to 36 V.
- Fast settling time: 700 ns to 16-bit accuracy.
- Low offset voltage and drift: 125 μV and 0.35 μV/°C.
- Compact packaging: SON-8, VSSOP-8, and SOIC-8 options.
Applications
- Test and measurement equipment
- Instrumentation and lab equipment
- Data acquisition (DAQ) systems
- Medical imaging and diagnostic equipment
- Audio and process control systems
- Ultrasound scanners and X-ray systems
- Seismic data acquisition and wireless communications test equipment
- DC power supplies, AC sources, and electronic loads
- Power analyzers and source measurement units (SMUs).
Q & A
- What is the noise density of the OPA211AIDRG4? The OPA211AIDRG4 has a noise density of 1.1 nV/√Hz at 1 kHz.
- What is the gain bandwidth product of the OPA211AIDRG4? The gain bandwidth product is 80 MHz (G = 100) and 45 MHz (G = 1).
- What is the slew rate of the OPA211AIDRG4? The slew rate is 27 V/μs.
- What is the settling time of the OPA211AIDRG4 to 16-bit accuracy? The settling time is 700 ns.
- What is the supply voltage range of the OPA211AIDRG4? The supply voltage range is ±2.25 to ±18 V, or 4.5 V to 36 V for single-supply operation.
- What is the output current capability of the OPA211AIDRG4? The output current is up to 30 mA.
- What are the package options for the OPA211AIDRG4? The package options include SON-8 (3 mm × 3 mm), VSSOP-8, and SOIC-8.
- What is the operating temperature range of the OPA211AIDRG4? The operating temperature range is –40°C to +125°C.
- What are some typical applications of the OPA211AIDRG4? Typical applications include test and measurement, instrumentation, data acquisition, medical imaging, and audio systems.
- How does the OPA211AIDRG4 perform in terms of offset voltage and drift? The OPA211AIDRG4 has an offset voltage of 125 μV and an offset voltage drift of 0.35 μV/°C.
