Overview
The INA125U/2K5 is a precision instrumentation amplifier produced by Texas Instruments. It is designed for applications requiring high accuracy and low noise amplification of small differential signals. This product is particularly suited for industrial, medical, and automotive applications where precision signal conditioning is critical. The INA125U/2K5 stands out for its integrated precision voltage reference and low offset voltage, making it a competitive choice for engineers seeking reliable performance in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | ±2.25 to ±18 | V | Dual Supply |
| Input Offset Voltage | 50 | µV | Max |
| Gain Range | 4 to 10,000 | - | Programmable |
| Bandwidth | 200 | kHz | Typical |
| Common Mode Rejection Ratio | 120 | dB | Min |
| Operating Temperature Range | -40 to +85 | °C | |
| Package | SOIC-16 | - |
Key Features
- Integrated precision voltage reference (2.5V ±0.4%)
- Low offset voltage: 50µV (max)
- Programmable gain: 4 to 10,000
- High common-mode rejection ratio (120dB min)
- Wide supply voltage range: ±2.25V to ±18V
Applications
The INA125U/2K5 is widely used in applications requiring precise signal amplification, such as industrial process control, medical instrumentation, and automotive sensors. Its high accuracy and low noise characteristics make it ideal for strain gauge amplifiers, thermocouple amplifiers, and bridge sensor interfaces. Additionally, its robust design ensures reliable performance in harsh environments, making it a preferred choice for engineers in these fields.
Q & A
1. What is the input offset voltage of the INA125U/2K5?
The input offset voltage is typically 50µV (max).
2. What is the gain range of the INA125U/2K5?
The gain range is programmable from 4 to 10,000.
3. What is the operating temperature range?
The operating temperature range is -40°C to +85°C.
4. Does the INA125U/2K5 include a voltage reference?
Yes, it includes an integrated precision 2.5V voltage reference.
5. What is the common-mode rejection ratio (CMRR)?
The CMRR is a minimum of 120dB.
6. What is the supply voltage range?
The supply voltage range is ±2.25V to ±18V.
7. What package does the INA125U/2K5 come in?
It comes in an SOIC-16 package.
8. Is the INA125U/2K5 suitable for automotive applications?
Yes, its robust design makes it suitable for automotive sensors and other automotive applications.
9. Can the INA125U/2K5 be used in medical devices?
Yes, its precision and low noise characteristics make it ideal for medical instrumentation.
10. What is the typical bandwidth of the INA125U/2K5?
The typical bandwidth is 200kHz.
