Overview
The INA195AIDBVT is a high-performance current sense amplifier produced by Texas Instruments. It is part of the INA193-INA198 family of current shunt monitors, designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V. This device operates independently of the supply voltage and is available in a compact SOT-23 (DBV) package with 5 pins. The INA195AIDBVT is ideal for applications requiring precise current measurement and control, offering a bandwidth of up to 500 kHz and low error over temperature.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| Pins | 5 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Common-Mode Voltage Range | -16 to 80 | V |
| Bandwidth | Up to 500 kHz | - |
| Transfer Functions Available | 20 V/V, 50 V/V, 100 V/V | - |
| Quiescent Current | 900 μA (maximum) | μA |
| Supply Voltage Range | 2.7 to 18 | V |
Key Features
- Wide Common-Mode Voltage Range: -16 V to +80 V, allowing for operation in a variety of high-voltage applications.
- Low Error: Maximum error of 3.0% over temperature, ensuring high accuracy in current measurements.
- High Bandwidth: Up to 500 kHz, simplifying use in current control loops.
- Multiple Transfer Functions: Available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V.
- Low Quiescent Current: Maximum of 900 μA, making it power-efficient.
- Complete Current Sense Solution: Designed to provide a comprehensive solution for current sensing applications.
Applications
- Welding Equipment: For precise current monitoring and control.
- Notebook Computers: To manage power and current efficiently.
- Cell Phones: For battery management and power monitoring.
- Telecom Equipment: To ensure reliable and efficient current sensing.
- Automotive: For various automotive systems requiring current monitoring.
- Power Management: In power supplies and other power management systems.
- Battery Chargers: To monitor and control charging currents accurately.
Q & A
- What is the common-mode voltage range of the INA195AIDBVT?
The common-mode voltage range is from -16 V to +80 V.
- What is the bandwidth of the INA195AIDBVT?
The bandwidth is up to 500 kHz.
- What are the available transfer functions for the INA195AIDBVT?
The available transfer functions are 20 V/V, 50 V/V, and 100 V/V.
- What is the maximum quiescent current of the INA195AIDBVT?
The maximum quiescent current is 900 μA.
- What is the operating temperature range of the INA195AIDBVT?
The operating temperature range is from -40°C to 125°C.
- What is the package type and pin count of the INA195AIDBVT?
The package type is SOT-23 (DBV) with 5 pins.
- What are some typical applications of the INA195AIDBVT?
Typical applications include welding equipment, notebook computers, cell phones, telecom equipment, automotive systems, power management, and battery chargers.
- What is the supply voltage range for the INA195AIDBVT?
The supply voltage range is from 2.7 V to 18 V.
- How does the INA195AIDBVT enhance common-mode rejection?
The INA195AIDBVT enhances common-mode rejection by converting the induced input voltage to a current, which is no longer dependent on closely matched resistor values.
- What is the maximum input voltage for accurate measurements?
The maximum input voltage for accurate measurements is 500 mV.
