Overview
The OPA211IDGKR from Texas Instruments is a precision operational amplifier that stands out for its low noise, high precision, and wide range of applications. This device is part of the OPA211 series, known for its extremely low voltage and current noise, making it an excellent choice for high-precision analog signal processing. The OPA211IDGKR operates with a supply current of only 3.6 mA and features rail-to-rail output swing, maximizing dynamic range. It is available in an 8-pin VSSOP package, making it suitable for a variety of compact and high-performance applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Voltage Noise Density | 1.1 | nV/√Hz at 1 kHz |
| Gain-Bandwidth Product | 80 MHz (G = 100), 45 MHz (G = 1) | MHz |
| Slew Rate | 27 | V/μs |
| Settling Time (0.01%, 16-bit) | 700 ns | ns |
| Supply Voltage Range | ±2.25 to ±18 V, 4.5 V to 36 V | V |
| Output Current | 30 mA | mA |
| Input Offset Voltage | ±20 to ±50 μV | μV |
| Input Offset Drift | ±0.35 μV/°C | μV/°C |
| Common-Mode Rejection Ratio (CMRR) | 114 to 130 dB | dB |
| Open-Loop Gain | 114 to 130 dB | dB |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | 8-pin VSSOP |
Key Features
- Very low input voltage noise density of 1.1 nV/√Hz at 1 kHz.
- High gain-bandwidth product: 80 MHz (G = 100) and 45 MHz (G = 1).
- Fast slew rate of 27 V/μs.
- Fast settling time to 16-bit accuracy: 700 ns.
- Rail-to-rail output swing for maximum dynamic range.
- Wide supply voltage range: ±2.25 to ±18 V or 4.5 to 36 V for single-supply operation.
- Low quiescent current of 3.6 mA per channel.
- High common-mode rejection ratio (CMRR) and open-loop gain.
- Shutdown feature with active high input.
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).
Q & A
- What is the input voltage noise density of the OPA211IDGKR?
The input voltage noise density of the OPA211IDGKR is 1.1 nV/√Hz at 1 kHz. - What is the gain-bandwidth product of the OPA211IDGKR?
The gain-bandwidth product is 80 MHz for a gain of 100 and 45 MHz for a gain of 1. - What is the slew rate of the OPA211IDGKR?
The slew rate is 27 V/μs. - What is the settling time of the OPA211IDGKR to 16-bit accuracy?
The settling time to 16-bit accuracy is 700 ns. - What is the supply voltage range for the OPA211IDGKR?
The supply voltage range is ±2.25 to ±18 V or 4.5 to 36 V for single-supply operation. - What is the output current capability of the OPA211IDGKR?
The output current capability is 30 mA. - Does the OPA211IDGKR have a shutdown feature?
Yes, the OPA211IDGKR has a shutdown feature with an active high input. - What is the operating temperature range of the OPA211IDGKR?
The operating temperature range is –40°C to +125°C. - In what package is the OPA211IDGKR available?
The OPA211IDGKR is available in an 8-pin VSSOP package. - What are some common applications of the OPA211IDGKR?
Common applications include ultrasound scanners, semiconductor test equipment, X-ray systems, lab and field instrumentation, and more.
