Overview
The OPA211MDGKTEP is a precision operational amplifier produced by Texas Instruments. This device is part of the OPAx211 series, known for its very low noise density and high-speed performance. The OPA211MDGKTEP achieves a low 1.1 nV/√Hz noise density and operates with a supply current of only 3.6 mA. It features rail-to-rail output swing, maximizing dynamic range, and is suitable for a wide range of precision applications, including driving high-precision analog-to-digital converters (ADCs) and buffering the output of high-resolution digital-to-analog converters (DACs).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | ±125 | μV |
| Offset Voltage Drift (dVOS/dT) | 0.35 | μV/°C |
| Input Voltage Noise Density | 1.1 | nV/√Hz at 1 kHz |
| Input Bias Current (IB) | ±50 | nA |
| Supply Current | 3.6 | mA/Ch (typical) |
| Gain Bandwidth Product (GBP) | 45 MHz (G = 1), 80 MHz (G = 100) | MHz |
| Slew Rate | 27 | V/μs |
| Settling Time to 16-Bit Accuracy | 700 ns | ns |
| Supply Voltage Range | ±2.25 to ±18 V, 4.5 V to 36 V | V |
| Output Current | 30 | mA |
| Operating Temperature Range | –40 to 125 | °C |
| Package | VSSOP-8 (DGK) |
Key Features
- Low voltage noise: 1.1 nV/√Hz at 1 kHz
- Low input voltage noise: 80 nV PP (0.1 to 10 Hz)
- High total harmonic distortion plus noise (THD + N): –136 dB (G = 1, f = 1 kHz)
- Low offset voltage: 125 μV (maximum)
- Low offset voltage drift: 0.35 μV/°C (typical)
- Low supply current: 3.6 mA/Ch (typical)
- Unity-gain stable
- Rail-to-rail output swing
- High slew rate: 27 V/μs
- Fast settling time to 16-bit accuracy: 700 ns
Applications
- Driving high-precision 16-bit analog-to-digital converters (ADCs)
- Buffering the output of high-resolution digital-to-analog converters (DACs)
- Precision data acquisition applications
- Loop filter amplifiers in Phase-Locked Loop (PLL) applications
Q & A
- What is the input offset voltage of the OPA211MDGKTEP?
The input offset voltage is ±125 μV.
- What is the typical offset voltage drift over temperature for the OPA211MDGKTEP?
The typical offset voltage drift is 0.35 μV/°C.
- What is the input voltage noise density of the OPA211MDGKTEP?
The input voltage noise density is 1.1 nV/√Hz at 1 kHz.
- What is the supply current of the OPA211MDGKTEP?
The supply current is 3.6 mA per channel (typical).
- What is the gain bandwidth product (GBP) of the OPA211MDGKTEP?
The GBP is 45 MHz for a gain of 1 and 80 MHz for a gain of 100.
- What is the slew rate of the OPA211MDGKTEP?
The slew rate is 27 V/μs.
- What is the settling time to 16-bit accuracy for the OPA211MDGKTEP?
The settling time is 700 ns.
- What is the supply voltage range for the OPA211MDGKTEP?
The supply voltage range is ±2.25 to ±18 V or 4.5 V to 36 V.
- What is the output current capability of the OPA211MDGKTEP?
The output current is 30 mA.
- In what package is the OPA211MDGKTEP available?
The OPA211MDGKTEP is available in a VSSOP-8 (DGK) package.
