Overview
The INA4180A1IPWR is a quad-channel, low- and high-side voltage output, current-sense amplifier manufactured by Texas Instruments. This device is part of the INAx180 family, designed for cost-optimized applications in current sensing. It accurately measures voltages developed across current-sensing resistors at common-mode voltages ranging from –0.2 V to +26 V, independent of the supply voltage. The INA4180 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, CLOAD = 10 pF) | 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 Options | 20 V/V, 50 V/V, 100 V/V, 200 V/V | V/V |
| Quiescent Current (maximum) | 900 µA | µA |
| Operating Free-Air Temperature | –40 to +125 | °C |
| Package Type | 14-pin TSSOP |
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).
- Multiple gain options: 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Low quiescent current: Maximum of 900 µA.
- Wide operating temperature range: –40°C to +125°C.
- Compact packaging: Available in a 14-pin TSSOP package.
Applications
- Motor control: For precise current monitoring in motor control systems.
- Battery monitoring: To monitor battery health and charging/discharging currents.
- Power management: In power supplies and power distribution units for current sensing.
- Lighting control: For monitoring and controlling lighting systems.
- Overcurrent detection: To protect against overcurrent conditions in various systems.
- Solar inverters: For monitoring current in solar power systems.
Q & A
- What is the common-mode range of the INA4180A1IPWR?
The common-mode range is from –0.2 V to +26 V.
- What are the gain options available for the INA4180A1IPWR?
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 INA4180A1IPWR?
The maximum quiescent current is 900 µA.
- What is the operating temperature range of the INA4180A1IPWR?
The operating temperature range is from –40°C to +125°C.
- What type of package is the INA4180A1IPWR available in?
The INA4180A1IPWR is available in a 14-pin TSSOP package.
- What is the bandwidth of the INA4180A1IPWR for A1 devices?
The bandwidth for A1 devices is up to 350 kHz.
- What is the offset voltage of the INA4180A1IPWR at VCM = 0 V?
The offset voltage at VCM = 0 V is ±150 µV (maximum).
- What are some typical applications of the INA4180A1IPWR?
Typical applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What is the supply voltage range for the INA4180A1IPWR?
The supply voltage range is from 2.7 V to 5.5 V.
- How many channels does the INA4180A1IPWR have?
The INA4180A1IPWR is a quad-channel current-sense amplifier.
