Overview
The INA180B1IDBVT, produced by Texas Instruments, is a single-channel, high-accuracy current-sense amplifier. This device is part of the INAx180 family, which includes the INA180, INA2180, and INA4180. The INA180B1IDBVT is 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. It operates from a single 2.7-V to 5.5-V power supply, making it versatile for various power management and monitoring tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 2.7 to 5.5 | V |
| Common-Mode Range (VCM) | –0.2 to +26 | V |
| Bandwidth (A1 devices) | 350 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 Options | 20 V/V, 50 V/V, 100 V/V, 200 V/V | V/V |
| Quiescent Current (maximum) | 260 µA | µA |
| Operating Free-Air Temperature | –40 to 125 °C | °C |
| Junction Temperature | 150 °C | °C |
| Storage Temperature | –65 to 150 °C | °C |
Key Features
- High accuracy with low offset voltage and gain error.
- Wide common-mode range from –0.2 V to +26 V.
- High bandwidth of up to 350 kHz (A1 devices).
- Low quiescent current of 260 µA maximum.
- Single 2.7-V to 5.5-V power supply operation.
- Integrated matched resistor gain network for reduced gain error and temperature drift.
- Available in various gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Compact 5-pin SOT-23 package.
Applications
- Motor control and monitoring.
- Battery monitoring and management.
- Power management and overcurrent detection.
- Lighting control systems.
- Solar inverters and renewable energy systems.
Q & A
- What is the common-mode range of the INA180B1IDBVT?
The common-mode range is from –0.2 V to +26 V.
- What are the available gain options for the INA180B1IDBVT?
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 INA180B1IDBVT?
The maximum quiescent current is 260 µA.
- What is the operating supply voltage range for the INA180B1IDBVT?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What is the bandwidth of the INA180B1IDBVT (A1 devices)?
The bandwidth is up to 350 kHz for A1 devices.
- What are some typical applications of the INA180B1IDBVT?
Typical applications include motor control, battery monitoring, power management, lighting control, and solar inverters.
- What is the maximum offset voltage at VCM = 0 V for the INA180B1IDBVT?
The maximum offset voltage at VCM = 0 V is ±150 µV.
- What is the output slew rate of the INA180B1IDBVT?
The output slew rate is 2 V/µs.
- What is the maximum junction temperature for the INA180B1IDBVT?
The maximum junction temperature is 150 °C.
- What package type is the INA180B1IDBVT available in?
The INA180B1IDBVT is available in a 5-pin SOT-23 package.
