Overview
The OPA381AIDGKR is a precision, low power, high-speed transimpedance amplifier produced by Texas Instruments. This component is part of the OPA381 family, known for its high precision, excellent long-term stability, and very low noise characteristics. The OPA381AIDGKR is particularly suited for applications requiring fast and accurate signal processing, such as in optical communication systems and photodiode monitoring.
Key Specifications
| Parameter | Value |
|---|---|
| Package | VSSOP (DGK), 8 pins |
| Operating Temperature Range | -40°C to 125°C |
| Transimpedance Bandwidth | Over 250kHz |
| Gain Bandwidth (GBW) | 18MHz |
| Dynamic Range | 5 Decades |
| Voltage Noise | 10nV/Hz |
| Bias Current | 3pA |
| Offset Voltage | 25µV (max) |
| Offset Drift | 0.1µV/°C (max) |
| Quiescent Current | 800µA |
| Supply Range | 2.7V to 5.5V |
Key Features
- High precision and excellent long-term stability
- Very low 1/f noise and voltage noise of 10nV/Hz
- Bias current of 3pA and offset voltage of 25µV (max)
- Fast overload recovery and high gain bandwidth of 18MHz
- Dynamic range of 5 decades, allowing measurement of signal currents from 10nA to 1mA
- Available in MSOP-8 and DFN-8 packages
Applications
- Precision I/V conversion
- Photodiode monitoring
- Optical amplifiers
- CAT-scanner front-end
- Photo lab equipment
Q & A
- What is the primary function of the OPA381AIDGKR? The OPA381AIDGKR is a transimpedance amplifier, primarily used for converting current signals to voltage signals with high precision and low noise.
- What is the operating temperature range of the OPA381AIDGKR? The operating temperature range is -40°C to 125°C.
- What is the gain bandwidth of the OPA381AIDGKR? The gain bandwidth is 18MHz.
- What is the dynamic range of the OPA381AIDGKR? The dynamic range is 5 decades.
- What are the typical applications of the OPA381AIDGKR? Typical applications include precision I/V conversion, photodiode monitoring, optical amplifiers, CAT-scanner front-end, and photo lab equipment.
- What is the supply voltage range for the OPA381AIDGKR? The supply voltage range is 2.7V to 5.5V.
- What are the package options for the OPA381AIDGKR? The component is available in MSOP-8 and DFN-8 packages.
- What is the quiescent current of the OPA381AIDGKR? The quiescent current is 800µA.
- How does the OPA381AIDGKR handle overload recovery? The OPA381AIDGKR features fast overload recovery.
- What is the bias current of the OPA381AIDGKR? The bias current is 3pA.
