Overview
The INA198AIDBVTG4 is a current shunt monitor from Texas Instruments, part of the INA193-INA198 family. This device is designed to sense voltage drops across shunts at a wide range of common-mode voltages, from -16 V to +80 V. Although the INA198AIDBVTG4 is currently obsolete and no longer manufactured, it remains an important component in understanding current shunt monitoring technology. The device operates from a single power supply ranging from 2.7 V to 18 V and is housed in a compact SOT-23 package, making it suitable for various applications requiring precise current measurement.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.7 | - | 18 | V |
| Analog Inputs (VIN+, VIN-) | -18 | - | 18 | V |
| Differential Input (VIN+ - VIN-) | -18 | - | 18 | V |
| Common-Mode Input Range | -16 | - | 80 | V |
| Gain | - | 100 | - | V/V |
| Gain Error | - | ±0.2% | ±1% | % |
| Total Output Error | - | ±0.75% | ±2.2% | % |
| Offset Voltage, RTI | ±0.5 | - | 2 | mV |
| Common-Mode Rejection | 80 | - | 120 | dB |
| Bandwidth | - | 200 kHz | - | kHz |
| Quiescent Current | 370 | 700 | 950 | μA |
| Operating Temperature Range | -40 | - | 125 | °C |
Key Features
- Wide Common-Mode Range: The INA198AIDBVTG4 can sense voltage drops across shunts at common-mode voltages from -16 V to +80 V.
- High Gain Accuracy: The device offers a gain of 100 V/V with a gain error of ±0.2% at 25°C.
- Low Offset Voltage: The offset voltage is ±0.5 mV, ensuring high accuracy in measurements.
- High Common-Mode Rejection Ratio (CMRR): CMRR is up to 120 dB, providing excellent rejection of common-mode signals.
- Single Power Supply Operation: Operates from a single power supply ranging from 2.7 V to 18 V.
- Compact Packaging: Housed in a space-saving SOT-23 package.
- Wide Operating Temperature Range: Specified over the extended operating temperature range of -40°C to +125°C.
Applications
- Current Measurement in Industrial Systems: Suitable for monitoring current in industrial control systems, motor control, and power supplies.
- Automotive Systems: Used in automotive applications for battery management, fuel injection systems, and other high-current measurement needs.
- Power Supplies and DC-DC Converters: Ideal for current monitoring in power supplies, DC-DC converters, and other power management systems.
- Medical Devices: Can be used in medical devices requiring precise current measurement, such as in patient monitoring equipment.
- Consumer Electronics: Suitable for current measurement in consumer electronics, such as in battery-powered devices and charging circuits.
Q & A
- What is the common-mode input range of the INA198AIDBVTG4?
The common-mode input range is from -16 V to +80 V.
- What is the gain of the INA198AIDBVTG4?
The gain is 100 V/V.
- What is the offset voltage of the INA198AIDBVTG4?
The offset voltage is ±0.5 mV.
- What is the common-mode rejection ratio (CMRR) of the INA198AIDBVTG4?
The CMRR is up to 120 dB.
- What is the operating temperature range of the INA198AIDBVTG4?
The operating temperature range is from -40°C to +125°C.
- What is the quiescent current of the INA198AIDBVTG4?
The quiescent current is between 370 μA and 950 μA.
- What is the bandwidth of the INA198AIDBVTG4?
The bandwidth is 200 kHz.
- Is the INA198AIDBVTG4 still in production?
No, the INA198AIDBVTG4 is obsolete and no longer manufactured.
- What package type is the INA198AIDBVTG4 available in?
The INA198AIDBVTG4 is available in a SOT-23 package.
- What are some typical applications of the INA198AIDBVTG4?
Typical applications include current measurement in industrial systems, automotive systems, power supplies, medical devices, and consumer electronics.
