Overview
The OPA380AIDR, produced by Texas Instruments, is a high-speed transimpedance amplifier that offers exceptional precision, long-term stability, and low noise. This amplifier is part of the OPA380 family and is particularly suited for high-speed photodiode applications. It features a gain bandwidth of 90MHz, enabling a transimpedance bandwidth of over 1MHz in most configurations. The OPA380AIDR is known for its high dynamic range, allowing it to measure signal currents from 1nA to 100µA in a single I/V conversion stage.
Key Specifications
| Parameter | Value |
|---|---|
| Gain Bandwidth Product (GBW) | 90MHz |
| Transimpedance Bandwidth | > 1MHz |
| Offset Voltage (Vos) | 25µV (max) |
| Offset Drift | 0.1µV/°C (max) |
| Bias Current | 50pA (max) |
| Dynamic Range | 4 to 5 Decades |
| Quiescent Current | 7.5mA |
| Supply Range | 2.7V to 5.5V |
| Operating Temperature Range | -40°C to +125°C |
| Package | MSOP-8, SO-8 |
Key Features
- High-speed operation with a gain bandwidth of 90MHz
- Excellent long-term stability and very low 1/f noise
- Low offset voltage of 25µV and offset drift of 0.1µV/°C
- Low bias current of 50pA
- Dynamic range of 4 to 5 decades
- Quiescent current of 7.5mA
- Supply range from 2.7V to 5.5V
- Available in single and dual versions with micro-size MSOP-8 and SO-8 packages
Applications
- Photodiode monitoring
- Precision I/V conversion
- Optical amplifiers
- CAT-scanner front-end
- Fast control loops for power level on an optical fiber
Q & A
- What is the gain bandwidth product (GBW) of the OPA380AIDR?
The GBW of the OPA380AIDR is 90MHz.
- What is the typical transimpedance bandwidth of the OPA380AIDR?
The transimpedance bandwidth is greater than 1MHz in most configurations.
- What is the maximum offset voltage of the OPA380AIDR?
The maximum offset voltage is 25µV.
- What is the bias current of the OPA380AIDR?
The bias current is 50pA (max).
- What is the dynamic range of the OPA380AIDR?
The dynamic range is 4 to 5 decades.
- What is the quiescent current of the OPA380AIDR?
The quiescent current is 7.5mA.
- What is the supply voltage range of the OPA380AIDR?
The supply voltage range is from 2.7V to 5.5V.
- In what temperature range is the OPA380AIDR specified?
The OPA380AIDR is specified from -40°C to +125°C.
- What packages are available for the OPA380AIDR?
The OPA380AIDR is available in MSOP-8 and SO-8 packages.
- What are some typical applications of the OPA380AIDR?
Typical applications include photodiode monitoring, precision I/V conversion, optical amplifiers, and CAT-scanner front-end.
