Overview
The OPA380AIDGKR is a high-speed precision transimpedance amplifier produced by Texas Instruments. This component is part of the OPA380 family, known for its high precision, excellent long-term stability, and very low 1/f noise. It is particularly suited for high-speed photodiode applications and other precision current-to-voltage conversions. The OPA380AIDGKR operates with a gain bandwidth product (GBW) of 90 MHz, enabling a transimpedance bandwidth of over 1 MHz in most configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | OPA380AIDGKR |
| Package Type | VSSOP-8 (MSOP-8) |
| Pin Count | 8 |
| Gain Bandwidth Product (GBW) | 90 MHz |
| Transimpedance Bandwidth | > 1 MHz |
| Offset Voltage (Max) | 25 µV |
| Offset Drift (Typ) | 0.1 µV/°C |
| Bias Current (Max) | 50 pA |
| Quiescent Current (Typ) | 7.5 mA |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40 °C to +125 °C |
| Output Current (Typ) | 75 mA |
| Slew Rate (Typ) | 80 V/µs |
| Noise at 1 kHz (Typ) | 150 nV/√Hz |
Key Features
- High-speed operation with a gain bandwidth product (GBW) of 90 MHz.
- Excellent long-term stability and very low 1/f noise.
- Low offset voltage of 25 µV and low offset drift of 0.1 µV/°C.
- Low bias current of 50 pA.
- Dynamic range of 4 to 5 decades.
- Quiescent current of 7.5 mA.
- Supply voltage range from 2.7 V to 5.5 V.
- Compact VSSOP-8 package.
Applications
- Photodiode monitoring and precision I/V conversion.
- Optical amplifiers and optical communication systems.
- CAT-scanner front-end applications.
- Fast control loops for power level on optical fibers.
Q & A
- What is the gain bandwidth product (GBW) of the OPA380AIDGKR? The GBW is 90 MHz.
- What is the typical transimpedance bandwidth of the OPA380AIDGKR? The transimpedance bandwidth is over 1 MHz in most configurations.
- What is the maximum offset voltage of the OPA380AIDGKR? The maximum offset voltage is 25 µV.
- What is the bias current of the OPA380AIDGKR? The maximum bias current is 50 pA.
- What is the quiescent current of the OPA380AIDGKR? The typical quiescent current is 7.5 mA.
- What is the supply voltage range for the OPA380AIDGKR? The supply voltage range is from 2.7 V to 5.5 V.
- What are the typical applications of the OPA380AIDGKR? Typical applications include photodiode monitoring, precision I/V conversion, optical amplifiers, and CAT-scanner front-end applications.
- What is the operating temperature range of the OPA380AIDGKR? The operating temperature range is from -40 °C to +125 °C.
- What is the package type of the OPA380AIDGKR? The package type is VSSOP-8 (MSOP-8).
- What is the slew rate of the OPA380AIDGKR? The typical slew rate is 80 V/µs.
