Overview
The INA180B1IDBVR is a single-channel, high-accuracy current-sense amplifier produced by Texas Instruments. This device is part of the INA180 family, designed for cost-optimized applications in current sensing. It operates within a wide common-mode voltage range of –0.2 V to +26 V, making it suitable for both low-side and high-side current measurements. The INA180B1IDBVR is powered by a single supply voltage ranging from 2.7 V to 5.5 V and is housed in a compact SOT-23 (DBV) package with 5 pins.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 2.7 to 5.5 | V |
| Common-Mode Voltage Range (VCM) | –0.2 to +26 | V |
| Bandwidth (A1 devices) | 350 kHz | |
| Offset Voltage (maximum at VCM = 0 V) | ±150 µV | |
| Offset Voltage (maximum at VCM = 12 V) | ±500 µV | |
| Output Slew Rate | 2 V/µs | |
| Gain Error (maximum) | ±1% | |
| Gain Options | 20 V/V (B1 devices) | |
| Quiescent Current (maximum) | 260 µA | |
| Operating Free-Air Temperature | –40 to +125 °C | |
| Junction Temperature | –55 to +150 °C | |
| Storage Temperature | –65 to +150 °C |
Key Features
- High bandwidth of 350 kHz for A1 devices, ensuring accurate and fast current measurements.
- Low offset voltage of ±150 µV at VCM = 0 V and ±500 µV at VCM = 12 V, enhancing measurement accuracy.
- High common-mode rejection ratio (CMRR) of up to 100 dB, minimizing interference from common-mode voltages.
- Fixed-gain options of 20 V/V, 50 V/V, 100 V/V, and 200 V/V, allowing for flexibility in application design.
- Low quiescent current of 260 µA, making it power-efficient for various applications.
- Compact SOT-23 (DBV) package with 5 pins, suitable for space-constrained designs.
- Operates from a single supply voltage of 2.7 V to 5.5 V, simplifying power supply design.
Applications
- Motor control: Accurate current sensing is crucial for motor control systems to ensure efficient and reliable operation.
- Battery monitoring: The INA180B1IDBVR is used to monitor battery current and voltage, helping in battery management systems.
- Power management: It is used in power supply units and power management ICs to monitor current and prevent overcurrent conditions.
- Lighting control: In lighting systems, especially those using LEDs, current sensing is essential for maintaining consistent brightness and preventing overcurrent.
- Overcurrent detection: The device helps in detecting overcurrent conditions in various electronic systems, ensuring safety and reliability.
- Solar inverters: It is used in solar inverter systems to monitor and control the flow of current from solar panels to the grid or load.
Q & A
- What is the common-mode voltage range of the INA180B1IDBVR?
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 bandwidth of the INA180B1IDBVR?
The bandwidth for A1 devices is 350 kHz.
- What is the maximum offset voltage at VCM = 0 V?
The maximum offset voltage at VCM = 0 V is ±150 µV.
- What is the quiescent current of the INA180B1IDBVR?
The quiescent current is 260 µA maximum.
- What is the operating free-air temperature range of the INA180B1IDBVR?
The operating free-air temperature range is from –40°C to +125°C.
- What are some typical applications of the INA180B1IDBVR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the package type of the INA180B1IDBVR?
The package type is SOT-23 (DBV) with 5 pins.
- What is the supply voltage range for the INA180B1IDBVR?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the output slew rate of the INA180B1IDBVR?
The output slew rate is 2 V/µs.
