Overview
The INA2128UA/1K is a precision instrumentation amplifier manufactured by Texas Instruments. Designed for applications requiring high accuracy and low noise, this component is ideal for signal conditioning in various industrial and medical devices. The INA2128UA/1K is particularly suited for environments where precise amplification of small differential signals is critical. Its high common-mode rejection ratio (CMRR) and low offset voltage make it a competitive choice in the instrumentation amplifier category, targeting engineers and designers in the fields of test and measurement, medical instrumentation, and industrial control systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | ±2.25 to ±18 | V | Dual supply |
| Input Offset Voltage | 50 | µV | Max |
| Input Bias Current | 5 | nA | Typical |
| Common-Mode Rejection Ratio (CMRR) | 120 | dB | Min |
| Gain Bandwidth Product | 200 | kHz | Typical |
| Operating Temperature Range | -40 to +85 | °C | |
| Package | SOIC-8 |
Key Features
- High precision with low offset voltage and drift.
- Excellent common-mode rejection ratio (CMRR) for noise reduction.
- Wide supply voltage range for versatile applications.
- Low input bias current for minimal signal distortion.
- Compact SOIC-8 package for space-constrained designs.
Applications
The INA2128UA/1K is widely used in applications requiring precise signal amplification. Its primary use cases include:
- Medical Instrumentation: Amplification of bioelectric signals in ECG and EEG devices.
- Industrial Automation: Signal conditioning in sensor interfaces and process control systems.
- Test and Measurement: Accurate amplification of small differential signals in laboratory equipment.
- Consumer Electronics: Audio signal processing and amplification in high-fidelity systems.
Q & A
1. What is the supply voltage range for the INA2128UA/1K?
The supply voltage range is ±2.25 to ±18 V.
2. What is the typical input bias current?
The typical input bias current is 5 nA.
3. What is the common-mode rejection ratio (CMRR)?
The CMRR is a minimum of 120 dB.
4. What is the operating temperature range?
The operating temperature range is -40 to +85 °C.
5. What package does the INA2128UA/1K come in?
It comes in an SOIC-8 package.
6. Is the INA2128UA/1K suitable for medical applications?
Yes, it is ideal for medical instrumentation such as ECG and EEG devices.
7. What is the gain bandwidth product?
The gain bandwidth product is typically 200 kHz.
8. Can it be used in industrial automation?
Yes, it is well-suited for signal conditioning in industrial automation systems.
9. What is the maximum input offset voltage?
The maximum input offset voltage is 50 µV.
10. Is the INA2128UA/1K suitable for audio applications?
Yes, it can be used in high-fidelity audio signal processing and amplification.
