Overview
The INA2180A1IDGKR is a dual-channel current-sense amplifier produced by Texas Instruments. It is part of the INAx180 family, which includes the INA180 (single-channel) and INA4180 (quad-channel) devices. These amplifiers are designed for cost-optimized applications and are capable of accurately measuring voltages developed across current-sensing resistors at common-mode voltages ranging from –0.2 V to +26 V, independent of the supply voltage. The INA2180A1IDGKR operates from a single 2.7-V to 5.5-V power supply and is available in an 8-pin VSSOP package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 2.7 to 5.5 | V |
| Common-Mode Range (VCM) | –0.2 to +26 | V |
| Gain | 20 V/V (A1 devices) | V/V |
| Bandwidth (A1 devices) | 350 kHz | kHz |
| Offset Voltage (maximum at VCM = 0 V) | ±150 µV | µV |
| Output Slew Rate | 2 V/µs | V/µs |
| Quiescent Current (maximum) | 500 µA | µA |
| Operating Free-Air Temperature | –40 to +125 | °C |
| Maximum Output Current | 8 mA | mA |
| Package Type | 8-pin VSSOP |
Key Features
- High bandwidth: Up to 350 kHz for A1 devices.
- Low offset voltage: ±150 µV (maximum) at VCM = 0 V.
- High accuracy: ±1% gain error (maximum) and 1-µV/°C offset drift (maximum).
- Fixed gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Low quiescent current: Maximum of 500 µA.
- Wide operating temperature range: –40°C to +125°C.
- Compact packaging: Available in 8-pin VSSOP and WSON packages.
Applications
- Motor control
- Battery monitoring
- Power management
- Lighting control
- Overcurrent detection
- Solar inverters
Q & A
- What is the common-mode range of the INA2180A1IDGKR?
The common-mode range is from –0.2 V to +26 V.
- What are the gain options available for the INA2180A1IDGKR?
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 INA2180A1IDGKR?
The maximum quiescent current is 500 µA.
- What is the operating temperature range of the INA2180A1IDGKR?
The operating temperature range is from –40°C to +125°C.
- What are the typical applications of the INA2180A1IDGKR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the bandwidth of the INA2180A1IDGKR for A1 devices?
The bandwidth for A1 devices is up to 350 kHz.
- What is the offset voltage of the INA2180A1IDGKR at VCM = 0 V?
The offset voltage is ±150 µV (maximum) at VCM = 0 V.
- What is the output slew rate of the INA2180A1IDGKR?
The output slew rate is 2 V/µs.
- What is the maximum output current of the INA2180A1IDGKR?
The maximum output current is 8 mA.
- In what package types is the INA2180A1IDGKR available?
The INA2180A1IDGKR is available in 8-pin VSSOP and WSON packages.
