Overview
The INA166UA, manufactured by Texas Instruments, is a high-performance microphone preamplifier designed for low-noise and low-distortion audio applications. This single-channel device is part of the INA166 series and is widely used in professional audio equipment and consumer electronics. Its market positioning targets audio engineers and manufacturers seeking precision and reliability in audio signal amplification. The INA166UA stands out for its high gain capability (2000 V/V) and excellent common-mode rejection ratio (CMRR) of 100 dB, making it a competitive choice in its category.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Model | INA166UA | - | Microphone Preamplifier |
| Manufacturer | Texas Instruments | - | - |
| Channels | 1 | Channel | - |
| Input Bias Current | 12 | µA | - |
| Input Offset Voltage | 250 | µV | - |
| Maximum Input Resistance | 60 | MOhms | - |
| CMRR | 100 | dB | - |
| Operating Temperature | -55 to +125 | °C | - |
| Package | SOIC-14 | - | SMD/SMT |
| Supply Voltage | ±5 to ±18 | V | Dual |
| Gain | 2000 | V/V | Fixed |
| Power Supply Current | 12 | mA | - |
Key Features
- Low-noise and low-distortion design for high-fidelity audio amplification.
- Fixed gain of 2000 V/V ensures consistent performance.
- High CMRR of 100 dB minimizes interference from common-mode signals.
- Wide operating temperature range (-55°C to +125°C) for robust performance in various environments.
- Compact SOIC-14 package suitable for space-constrained applications.
Applications
The INA166UA is ideal for use in professional audio equipment, such as microphones, mixers, and audio interfaces, where low-noise amplification is critical. It is also well-suited for consumer electronics, including high-end headphones and portable audio devices. Additionally, its robust design makes it suitable for industrial applications requiring reliable audio signal processing.
Q & A
1. What is the gain of the INA166UA?
The INA166UA has a fixed gain of 2000 V/V.
2. What is the operating temperature range?
The device operates from -55°C to +125°C.
3. How many channels does the INA166UA have?
It is a single-channel device.
4. What is the CMRR of the INA166UA?
The common-mode rejection ratio is 100 dB.
5. What is the input offset voltage?
The input offset voltage is 250 µV.
6. What is the package type?
The INA166UA comes in an SOIC-14 package.
7. What is the maximum supply voltage?
The maximum dual supply voltage is ±18 V.
8. Is the INA166UA RoHS compliant?
Yes, it is RoHS compliant.
9. What is the input bias current?
The input bias current is 12 µA.
10. What is the typical application of the INA166UA?
It is commonly used in microphone preamplifiers and other low-noise audio amplification applications.
