Overview
The INA194AIDBVRG4 is a current shunt monitor from Texas Instruments, part of the INA193-INA198 family. This component is designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V. Although the INA194AIDBVRG4 is currently obsolete and no longer manufactured, it remains a significant example of high-performance current sensing technology. The device features a voltage output and is suitable for various applications requiring precise current measurement.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Common-mode input voltage (VCM) | -16 | 80 | V | |
| Operating supply voltage (VS) | 2.7 | 18 | V | |
| Operating free-air temperature (TA) | -40 | 125 | °C | |
| Gain (G) | 50 | V/V | ||
| Input Bias Current (IB) | ±16 | μA | ||
| Bandwidth (BW) | 300 | kHz | ||
| Quiescent Current (IQ) | 700 | 900 | μA | |
| Output Impedance (RO) | 1.5 | Ω | ||
| Maximum Capacitive Load | 10 | nF |
Key Features
- High Common-Mode Voltage Range: The INA194AIDBVRG4 can operate with common-mode voltages from -16 V to +80 V, making it suitable for a wide range of applications.
- High Gain Accuracy: The device offers a gain of 50 V/V with a gain error of ±0.2% at 25°C, ensuring precise current measurements.
- Wide Operating Supply Voltage Range: It can operate with supply voltages from 2.7 V to 18 V, providing flexibility in system design.
- Low Quiescent Current: The quiescent current is typically 900 μA, which is beneficial for power-sensitive applications.
- High Bandwidth: The device has a bandwidth of 300 kHz, allowing for accurate measurement of high-frequency signals.
Applications
- Automotive Systems: Suitable for monitoring currents in automotive systems due to its high common-mode voltage range and robustness.
- Industrial Control Systems: Used in industrial control systems for precise current measurement and monitoring.
- Power Supplies and DC-DC Converters: Ideal for monitoring output currents in power supplies and DC-DC converters.
- Motor Control and Robotics: Applied in motor control and robotics for accurate current sensing and feedback.
Q & A
- What is the common-mode voltage range of the INA194AIDBVRG4?
The common-mode voltage range is from -16 V to +80 V.
- What is the gain of the INA194AIDBVRG4?
The gain of the INA194AIDBVRG4 is 50 V/V.
- What is the operating supply voltage range of the INA194AIDBVRG4?
The operating supply voltage range is from 2.7 V to 18 V.
- What is the typical quiescent current of the INA194AIDBVRG4?
The typical quiescent current is 900 μA.
- What is the bandwidth of the INA194AIDBVRG4?
The bandwidth is 300 kHz.
- Is the INA194AIDBVRG4 still in production?
No, the INA194AIDBVRG4 is obsolete and no longer manufactured.
- What are some common applications of the INA194AIDBVRG4?
Common applications include automotive systems, industrial control systems, power supplies, and motor control and robotics.
- What is the maximum capacitive load for the INA194AIDBVRG4?
The maximum capacitive load is 10 nF to avoid sustained oscillation.
- What is the output impedance of the INA194AIDBVRG4?
The output impedance is typically 1.5 Ω.
- What is the input bias current of the INA194AIDBVRG4?
The input bias current is typically ±16 μA.
