Overview
The INA180B3IDBVR is a current-sense amplifier produced by Texas Instruments. It is part of the INAx180 family, which includes single-channel, dual-channel, and quad-channel configurations. This device is designed for cost-optimized applications and is capable of sensing voltage drops across current-sense resistors at common-mode voltages ranging from –0.2 V to +26 V, independent of the supply voltage. The INA180B3IDBVR operates from a single 2.7-V to 5.5-V power supply and is suitable for both low-side and high-side current sensing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Common-mode voltage (max) | 26 | V |
| Common-mode voltage (min) | -0.2 | V |
| Input offset (±) (max) | 150 | µV |
| Input offset drift (±) (typ) | 0.2 | µV/°C |
| Voltage gain (V/V) | 100 | V/V |
| Bandwidth (kHz) | 350 | kHz |
| Supply voltage (max) | 5.5 | V |
| Supply voltage (min) | 2.7 | V |
| Quiescent current (max) | 0.26 | mA |
| Number of channels | 1 | |
| Gain error (%) | 0.8 | % |
| Gain error drift (±) (max) | 20 | ppm/°C |
| Slew rate | 2 | V/µs |
| Operating temperature range | -40°C to +150°C | °C |
| Package type | SOT-23-5 (DBV) |
Key Features
- High bandwidth: Up to 350 kHz for accurate current sensing.
- Low offset voltage: ±150 µV (maximum) at VCM = 0 V.
- High common-mode range: –0.2 V to +26 V.
- Fixed gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Low quiescent current: Maximum of 260 µA.
- Single 2.7-V to 5.5-V power supply operation.
- Low-side capable.
- High slew rate: 2 V/µs.
- High CMRR (Common Mode Rejection Ratio): Minimum of 84 dB.
Applications
- Motor control: For precise current monitoring in motor control systems.
- Battery monitoring: To measure current in battery management systems.
- Power management: For monitoring and controlling power in various applications.
- Lighting control: In LED lighting systems to manage current accurately.
- Overcurrent detection: To protect against overcurrent conditions.
- Solar inverters: For current sensing in solar power systems.
Q & A
- What is the common-mode voltage range of the INA180B3IDBVR?
The common-mode voltage range is from –0.2 V to +26 V.
- What are the fixed gain options available for the INA180B3IDBVR?
The fixed gain options are 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- What is the maximum quiescent current of the INA180B3IDBVR?
The maximum quiescent current is 260 µA.
- What is the operating temperature range of the INA180B3IDBVR?
The operating temperature range is from –40°C to +150°C.
- What is the package type of the INA180B3IDBVR?
The package type is SOT-23-5 (DBV).
- What are some typical applications of the INA180B3IDBVR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the bandwidth of the INA180B3IDBVR?
The bandwidth is up to 350 kHz.
- What is the slew rate of the INA180B3IDBVR?
The slew rate is 2 V/µs.
- Is the INA180B3IDBVR suitable for low-side current sensing?
Yes, it is suitable for low-side current sensing.
- What is the CMRR (Common Mode Rejection Ratio) of the INA180B3IDBVR?
The CMRR is a minimum of 84 dB.
