Overview
The INA193AIDBVTG4, part of the INA193-INA198 family, is a current shunt monitor produced by Texas Instruments. This device is designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V, independent of the supply voltage. It operates from a single +2.7-V to +18-V supply and is available in a space-saving SOT-23 package. The INA193AIDBVTG4 is particularly useful for applications requiring high accuracy and wide common-mode voltage range, making it suitable for various industries including automotive, power management, and telecommunications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Common-Mode Voltage Range | -16 V to +80 V | V |
| Gain | 20 V/V | V/V |
| Bandwidth | Up to 500 kHz | kHz |
| Quiescent Current | 900 μA (maximum) | μA |
| Supply Voltage Range | +2.7 V to +18 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Gain Error | ±0.2% (at 25°C), ±2% (over temperature) | % |
| Total Output Error | ±0.75% (at 25°C), ±3% (over temperature) | % |
| Output Impedance | 1.5 Ω (maximum) | Ω |
| Maximum Capacitive Load | No sustained oscillation at 10 nF | nF |
Key Features
- Wide Common-Mode Voltage Range: The device can sense drops across shunts at common-mode voltages from -16 V to +80 V, independent of the supply voltage.
- High Accuracy: Low error over temperature, with a gain error of ±0.2% at 25°C and ±2% over the operating temperature range.
- High Bandwidth: Up to 500 kHz bandwidth simplifies use in current control loops.
- Low Quiescent Current: Maximum of 900 μA, making it power-efficient.
- Compact Packaging: Available in a space-saving SOT-23 package.
- Robust Temperature Range: Specified over the extended operating temperature range of -40°C to +125°C.
Applications
- Welding Equipment: High accuracy and wide common-mode voltage range make it suitable for welding applications.
- Notebook Computers and Cell Phones: Used in power management and battery charging circuits.
- Telecom Equipment: Ideal for current sensing in telecommunications hardware.
- Automotive Systems: Suitable for automotive applications due to its robust temperature range and high accuracy.
- Power Management and Battery Chargers: Used to monitor and control current in various power management systems.
Q & A
- What is the common-mode voltage range of the INA193AIDBVTG4?
The common-mode voltage range is from -16 V to +80 V.
- What are the available gain options for the INA193-INA198 family?
The devices are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V.
- What is the maximum bandwidth of the INA193AIDBVTG4?
The maximum bandwidth is up to 500 kHz.
- What is the quiescent current of the INA193AIDBVTG4?
The maximum quiescent current is 900 μA.
- What is the operating temperature range of the INA193AIDBVTG4?
The operating temperature range is from -40°C to +125°C.
- What is the output impedance of the INA193AIDBVTG4?
The output impedance is 1.5 Ω (maximum).
- Can the INA193AIDBVTG4 operate with a capacitive load?
Yes, it can handle a maximum capacitive load of 10 nF without sustained oscillation.
- What are some typical applications of the INA193AIDBVTG4?
Typical applications include welding equipment, notebook computers, cell phones, telecom equipment, automotive systems, and power management circuits.
- What is the package type of the INA193AIDBVTG4?
The device is available in a SOT-23 package.
- How does the INA193AIDBVTG4 achieve high common-mode rejection?
The device uses a unique internal circuit topology that converts the induced input voltage to a current, providing enhanced common-mode rejection.
