Overview
The INA194AIDBVTG4, produced by Texas Instruments, is a high-performance current shunt monitor from the INA193-INA198 family. This device is designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V, making it suitable for a wide range of applications. The INA194AIDBVTG4 features a gain of 50 V/V and is packaged in a 5-pin SOT-23 (DBV) package. It operates from a single power supply with a voltage range of 2.7 V to 18 V, ensuring versatility in various power management scenarios.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 50 | V/V |
| Common-Mode Input Range | -16 to +80 | V |
| Operating Supply Voltage | 2.7 to 18 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Bandwidth | Up to 500 kHz | |
| Quiescent Current | 900 | μA |
| Output Impedance | 1.5 | Ω |
| Common-Mode Rejection Ratio (CMRR) | 100 dB (typical) | |
| Offset Voltage | ±0.5 mV (typical) | |
| Input Bias Current | ±16 μA (typical) |
Key Features
- Wide Common-Mode Voltage Range: -16 V to +80 V, allowing operation in diverse voltage environments.
- Low Error: Maximum total output error of 3.0% over temperature.
- High Bandwidth: Up to 500 kHz, enabling accurate measurement in high-frequency applications.
- Multiple Gain Options: Although the INA194AIDBVTG4 has a fixed gain of 50 V/V, the family offers gains of 20 V/V, 50 V/V, and 100 V/V.
- Low Quiescent Current: Maximum of 900 μA, which is energy-efficient.
- Complete Current Sense Solution: Includes all necessary components for current sensing in a single package.
Applications
- Welding Equipment: For monitoring high-current flows in welding processes.
- Notebook Computers and Cell Phones: For power management and battery monitoring.
- Telecom Equipment: For current monitoring in telecommunications systems.
- Automotive Systems: For monitoring currents in automotive electrical systems.
- Power Management and Battery Chargers: For accurate current sensing in power management and charging applications.
Q & A
- What is the common-mode input voltage range of the INA194AIDBVTG4? The common-mode input voltage range is from -16 V to +80 V.
- What is the gain of the INA194AIDBVTG4? The gain of the INA194AIDBVTG4 is 50 V/V.
- What is the operating supply voltage range of the INA194AIDBVTG4? The operating supply voltage range is from 2.7 V to 18 V.
- What is the bandwidth of the INA194AIDBVTG4? The bandwidth is up to 500 kHz.
- What is the quiescent current of the INA194AIDBVTG4? The maximum quiescent current is 900 μA.
- What is the output impedance of the INA194AIDBVTG4? The output impedance is 1.5 Ω.
- What are some common applications of the INA194AIDBVTG4? Applications include welding equipment, notebook computers, cell phones, telecom equipment, automotive systems, and power management.
- What is the package type of the INA194AIDBVTG4? The package type is 5-pin SOT-23 (DBV).
- What is the operating temperature range of the INA194AIDBVTG4? The operating temperature range is from -40°C to 125°C.
- Is the INA194AIDBVTG4 still in production? The INA194AIDBVTG4 is listed as obsolete and no longer manufactured.
