Overview
The INA180A1IDBVR from Texas Instruments is a high-precision current sense amplifier designed for cost-optimized applications. This device is part of the INAx180 family, which includes single-channel (INA180), dual-channel (INA2180), and quad-channel (INA4180) options. The INA180A1IDBVR is specifically tailored for accurate current monitoring in various high-side and low-side applications.
It operates from a single 2.7-V to 5.5-V power supply and is available in a compact 5-pin SOT-23 package, making it suitable for space-constrained designs. The device features high bandwidth, low offset voltage, and high accuracy, making it ideal for motor control, battery monitoring, power management, and other applications requiring precise current sensing.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 5-pin SOT-23 (DBV) |
| Operating Temperature Range | –40°C to +125°C |
| Common-Mode Range (VCM) | –0.2 V to +26 V |
| Bandwidth | 350 kHz (A1 devices) |
| Offset Voltage | ±150 µV (maximum) at VCM = 0 V, ±500 µV (maximum) at VCM = 12 V |
| Output Slew Rate | 2 V/µs |
| Gain Error | ±1% (maximum) |
| Offset Drift | 1 µV/°C (maximum) |
| Gain Options | 20 V/V (A1 devices), 50 V/V (A2 devices), 100 V/V (A3 devices), 200 V/V (A4 devices) |
| Quiescent Current | 260 µA (maximum) |
| Supply Voltage | 2.7 V to 5.5 V |
Key Features
- High precision and bandwidth for accurate current monitoring
- Common-mode range from –0.2 V to +26 V, independent of the supply voltage
- Integrated matched resistor gain network for minimized gain error and reduced temperature drift
- High bandwidth of 350 kHz for A1 devices
- Low offset voltage: ±150 µV (maximum) at VCM = 0 V and ±500 µV (maximum) at VCM = 12 V
- Fast output slew rate of 2 V/µs
- High accuracy with ±1% gain error (maximum) and 1 µV/°C offset drift (maximum)
- Multiple gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V
- Low quiescent current of 260 µA (maximum)
Applications
- Motor control
- Battery monitoring
- Power management
- Lighting control
- Overcurrent detection
- Solar inverters
Q & A
- What is the operating temperature range of the INA180A1IDBVR?
The operating temperature range is –40°C to +125°C.
- What is the common-mode range of the INA180A1IDBVR?
The common-mode range is from –0.2 V to +26 V.
- What are the gain options available for the INA180A1IDBVR?
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 INA180A1IDBVR?
The maximum quiescent current is 260 µA.
- What is the bandwidth of the INA180A1IDBVR for A1 devices?
The bandwidth is 350 kHz for A1 devices.
- What are some typical applications of the INA180A1IDBVR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the supply voltage range for the INA180A1IDBVR?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the package type of the INA180A1IDBVR?
The package type is a 5-pin SOT-23 (DBV).
- What is the output slew rate of the INA180A1IDBVR?
The output slew rate is 2 V/µs.
- How accurate is the gain error of the INA180A1IDBVR?
The gain error is ±1% (maximum).
