Overview
The INA180A4IDBVR is a high-performance current sense amplifier produced by Texas Instruments. This device is part of the INA180 series, designed for cost-optimized applications in current sensing. It operates in both low-side and high-side configurations, accurately measuring voltages developed across current-sensing resistors at common-mode voltages up to 26 V, while being powered from a supply voltage as low as 2.7 V to 5.5 V. The INA180A4IDBVR is packaged in a SOT-23 (DBV) package with 5 pins, making it compact and suitable for a variety of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 2.7 to 5.5 | V |
| Common-Mode Range (VCM) | –0.2 to +26 | V |
| Bandwidth (A4 devices) | 105 kHz | kHz |
| Offset Voltage (maximum at VCM = 0 V) | ±150 µV | µV |
| Offset Voltage (maximum at VCM = 12 V) | ±500 µV | µV |
| Output Slew Rate | 2 V/µs | V/µs |
| Gain Error (maximum) | ±1% | % |
| Gain Option (A4 devices) | 200 V/V | V/V |
| Quiescent Current (maximum) | 260 µA | µA |
| Operating Free-Air Temperature | –40 to +125 | °C |
| Junction Temperature | –55 to +150 | °C |
Key Features
- High Common-Mode Range: Operates at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage.
- High Bandwidth: Up to 350 kHz bandwidth for A1 devices, with the A4 device offering 105 kHz.
- Low Offset Voltage: Maximum offset voltage of ±150 µV at VCM = 0 V and ±500 µV at VCM = 12 V.
- High Accuracy: ±1% gain error and 1-µV/°C offset drift.
- Fixed Gain Options: Available in four fixed-gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Compact Package: SOT-23 (DBV) package with 5 pins.
- Low Power Consumption: Maximum quiescent current of 260 µA.
Applications
- Motor Control: Accurate current sensing for motor control systems.
- Battery Monitoring: Monitoring battery current in various battery management systems.
- Power Management: Current sensing in power supplies and power management circuits.
- Lighting Control: Current monitoring in lighting control systems.
- Overcurrent Detection: Detecting overcurrent conditions in various applications.
- Solar Inverters: Current sensing in solar inverter systems.
Q & A
- What is the common-mode range of the INA180A4IDBVR?
The common-mode range is from –0.2 V to +26 V.
- What is the bandwidth of the INA180A4IDBVR?
The bandwidth for the A4 device is 105 kHz.
- What is the offset voltage of the INA180A4IDBVR?
The maximum offset voltage is ±150 µV at VCM = 0 V and ±500 µV at VCM = 12 V.
- What are the gain options available for the INA180 series?
The gain options are 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- What is the quiescent current of the INA180A4IDBVR?
The maximum quiescent current is 260 µA.
- What is the operating free-air temperature range of the INA180A4IDBVR?
The operating free-air temperature range is from –40°C to +125°C.
- What are some common applications of the INA180A4IDBVR?
Common applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the package type of the INA180A4IDBVR?
The package type is SOT-23 (DBV) with 5 pins.
- What is the supply voltage range for the INA180A4IDBVR?
The supply voltage range is from 2.7 V to 5.5 V.
- How does the INA180A4IDBVR handle high common-mode voltages?
The device can handle common-mode voltages up to 26 V, independent of the supply voltage.
