Overview
The INA180B2IDBVR, produced by Texas Instruments, is a low- or high-side voltage output current sense amplifier. This device is part of the INA180 family, which includes the INA180, INA2180, and INA4180. These current-sensing amplifiers are designed for cost-optimized applications and can accurately measure voltages developed across current-sensing resistors at common-mode voltages ranging from –0.2 V to +26 V, independent of the supply voltage. The INA180B2IDBVR is particularly suited for applications requiring precise current measurement in various configurations, including low-side and high-side sensing.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | INA180B2IDBVR |
| Package Type | SOT-23 (5-pin) |
| Common Mode Voltage Range | –0.2 V to +26 V |
| Gain | 50 V/V (B2 devices) |
| Gain Error | ±1% (maximum) |
| Input Offset Voltage | ±150 µV (maximum) |
| Input Offset Drift | 0.2 µV/°C (typical) |
| Bandwidth | Up to 350 kHz (A1 devices), 210 kHz (B2 devices) |
| Quiescent Current | 260 µA (maximum at VSENSE = 10 mV) |
| Operating Temperature Range | –40°C to +125°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| RoHS Compliance | Yes |
Key Features
- High bandwidth: Up to 350 kHz, allowing for the detection of rapid changes in sensed current.
- High slew rate: 2 V/µs, enabling quick response to input current changes.
- Low quiescent current: 260 µA maximum, making it suitable for battery-powered applications.
- High common-mode rejection ratio (CMRR): 84 dB, ensuring accurate measurements in noisy environments.
- Low-side and high-side sensing capability: Versatile for various application configurations.
- Fixed-gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V, providing flexibility in design.
Applications
- Motor control: For precise current measurement and control in motor drive systems.
- Battery monitoring: Suitable for battery charge and discharge current measurements.
- Power management: Used in power supply units and power management systems for current sensing.
- Lighting control: For current measurement in lighting control systems.
- Overcurrent detection: To detect and prevent overcurrent conditions in various systems.
- Solar inverters: For monitoring and controlling current in solar power systems.
Q & A
- What is the common-mode voltage range of the INA180B2IDBVR?
The common-mode voltage range is from –0.2 V to +26 V.
- What are the gain options available for the INA180 family?
The gain options are 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- What is the maximum quiescent current of the INA180B2IDBVR?
The maximum quiescent current is 260 µA.
- What is the operating temperature range of the INA180B2IDBVR?
The operating temperature range is from –40°C to +125°C.
- Is the INA180B2IDBVR RoHS compliant?
Yes, the INA180B2IDBVR is RoHS compliant.
- What are the typical applications of the INA180B2IDBVR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the bandwidth of the INA180B2IDBVR?
The bandwidth is up to 210 kHz for B2 devices.
- Can the INA180B2IDBVR be used in both low-side and high-side configurations?
Yes, the INA180B2IDBVR can be used in both low-side and high-side configurations.
- What is the supply voltage range for the INA180B2IDBVR?
The supply voltage range is from 2.7 V to 5.5 V.
- How does the INA180B2IDBVR handle parasitic voltage on the VS pin when no power is applied?
It is advisable to avoid such conditions as they can potentially cause damage. Refer to the datasheet and application notes for proper handling.
