Overview
The LOG101AIDR is a precision logarithmic amplifier produced by Texas Instruments. This integrated circuit (IC) is designed for applications requiring accurate logarithmic computation of input signals. It is widely used in industries such as optical power measurement, medical instrumentation, and industrial control systems. The LOG101AIDR stands out for its high accuracy, low noise, and wide dynamic range, making it a competitive choice for engineers and designers seeking reliable logarithmic amplification solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | ±4.5 to ±18 | V | Dual supply |
| Input Current Range | 100 pA to 10 mA | A | Wide dynamic range |
| Logarithmic Conformity Error | ±0.2 | % | Over 5 decades |
| Bandwidth | 1 | MHz | Typical |
| Operating Temperature Range | -40 to +85 | °C | Industrial grade |
| Package | SOIC-8 | - | Surface mount |
| Input Offset Voltage | ±1 | mV | Typical |
| Power Consumption | 2.5 | mW | Typical |
Key Features
- High Accuracy: Logarithmic conformity error of ±0.2% over a wide input current range.
- Wide Dynamic Range: Supports input currents from 100 pA to 10 mA, making it versatile for various applications.
- Low Noise: Ensures precise signal processing in sensitive measurement applications.
- Compact Package: Available in an SOIC-8 package, ideal for space-constrained designs.
- Industrial Temperature Range: Operates reliably in environments ranging from -40°C to +85°C.
Applications
The LOG101AIDR is widely used in optical power measurement systems, where it accurately converts photodiode currents into logarithmic outputs. It is also employed in medical instrumentation for precise signal processing in devices like blood analyzers. Additionally, its robust performance makes it suitable for industrial control systems, including process monitoring and automation. Its ability to handle a wide dynamic range ensures reliable operation in diverse and demanding environments.
Q & A
1. What is the operating voltage range of the LOG101AIDR?
The LOG101AIDR operates with a dual supply voltage range of ±4.5V to ±18V.
2. What is the input current range supported by this amplifier?
It supports an input current range from 100 pA to 10 mA.
3. How accurate is the logarithmic computation?
The logarithmic conformity error is ±0.2% over five decades of input current.
4. What is the typical bandwidth of the LOG101AIDR?
The typical bandwidth is 1 MHz.
5. Can the LOG101AIDR operate in harsh environments?
Yes, it is designed to operate in temperatures ranging from -40°C to +85°C, making it suitable for industrial applications.
6. What package does the LOG101AIDR come in?
It is available in an SOIC-8 surface-mount package.
7. What is the typical power consumption of this amplifier?
The typical power consumption is 2.5 mW.
8. Is the LOG101AIDR suitable for optical power measurement?
Yes, it is widely used in optical power measurement systems due to its high accuracy and wide dynamic range.
9. What is the input offset voltage of the LOG101AIDR?
The typical input offset voltage is ±1 mV.
10. Can the LOG101AIDR be used in medical instrumentation?
Yes, it is ideal for medical instrumentation applications requiring precise logarithmic computation.
