Overview
The INA139NA/3KG4 is a high-performance, variable gain current sense amplifier produced by Texas Instruments. This component is designed for high-side current measurement and is suitable for a wide range of applications requiring accurate and reliable current sensing. It operates over a voltage range of 2.7V to 36V and has a bandwidth of up to 440kHz, making it versatile for various industrial, automotive, and consumer electronics uses.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 2.7V to 36V |
| Bandwidth | Up to 440kHz |
| Gain Options | 20, 50, 100, 200 V/V |
| Input Offset Voltage | ±200 μV (max) |
| Input Bias Current | ±10 nA (max) |
| Package Type | SOIC-8 |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- High-side current measurement capability
- Variable gain options (20, 50, 100, 200 V/V)
- High accuracy with low input offset voltage (±200 μV max)
- Low input bias current (±10 nA max)
- Wide operating voltage range (2.7V to 36V)
- High bandwidth (up to 440kHz)
- Compact SOIC-8 package
Applications
- Industrial control systems
- Automotive systems (e.g., battery management, motor control)
- Consumer electronics (e.g., power supplies, motor drives)
- Medical devices requiring precise current measurement
- Renewable energy systems (e.g., solar, wind power)
Q & A
- What is the operating voltage range of the INA139NA/3KG4? The operating voltage range is 2.7V to 36V.
- What are the gain options available for the INA139NA/3KG4? The gain options are 20, 50, 100, and 200 V/V.
- What is the maximum input offset voltage of the INA139NA/3KG4? The maximum input offset voltage is ±200 μV.
- What is the package type of the INA139NA/3KG4? The package type is SOIC-8.
- What is the operating temperature range of the INA139NA/3KG4? The operating temperature range is -40°C to 125°C.
- What are some common applications of the INA139NA/3KG4? Common applications include industrial control systems, automotive systems, consumer electronics, medical devices, and renewable energy systems.
- What is the bandwidth of the INA139NA/3KG4? The bandwidth is up to 440kHz.
- Is the INA139NA/3KG4 suitable for high-side current measurement? Yes, it is specifically designed for high-side current measurement.
- What is the input bias current of the INA139NA/3KG4? The input bias current is ±10 nA (max).
- Where can I find detailed specifications and datasheets for the INA139NA/3KG4? Detailed specifications and datasheets can be found on the Texas Instruments website, as well as on distributor sites like Digi-Key and Mouser Electronics.
