Overview
The INA4180A2IPWR is a quad-channel current sense amplifier produced by Texas Instruments. It is part of the INAx180 family, which includes the INA180 (single-channel) and INA2180 (dual-channel) devices. These amplifiers are designed for cost-optimized applications and are used to sense voltage drops across current-sense resistors at common-mode voltages ranging from –0.2 V to +26 V, independent of the supply voltage. The INA4180A2IPWR operates from a single 2.7-V to 5.5-V power supply and is available in a 14-pin TSSOP package.
Key Specifications
| Attribute | Value |
|---|---|
| Package | 14-pin TSSOP (PW) |
| Operating Temperature Range (°C) | –40 to 125 |
| Common-Mode Range (VCM) | –0.2 V to +26 V |
| Bandwidth | 210 kHz (A2 devices) |
| Offset Voltage | ±150 µV (maximum) at VCM = 0 V, ±500 µV (maximum) at VCM = 12 V |
| Output Slew Rate | 2 V/µs |
| Gain Options | 20 V/V, 50 V/V, 100 V/V, 200 V/V (INA4180A2IPWR is 50 V/V) |
| Quiescent Current | 690 µA (typical), 900 µA (maximum) |
| Supply Voltage | 2.7 V to 5.5 V |
| Number of Channels | 4 |
| Output Type | Rail-to-Rail |
| Input Bias Current | 80 µA |
| Maximum Input Offset Voltage | 100 µV |
| Maximum Output Current per Channel | 8 mA |
Key Features
- High Accuracy: The INA4180A2IPWR features a high accuracy with ±1% gain error (maximum) and 1-µV/°C offset drift (maximum).
- Wide Common-Mode Range: It can operate at common-mode voltages from –0.2 V to +26 V, making it versatile for various applications.
- High Bandwidth: The device has a bandwidth of 210 kHz for A2 devices, ensuring high-speed signal processing.
- Low Quiescent Current: The quad-channel device draws a maximum supply current of 900 µA, which is energy-efficient.
- Rail-to-Rail Output: The output is rail-to-rail, allowing the output voltage to swing from the negative to the positive supply rail.
- Fixed Gain Options: The device is available in fixed gain options of 20 V/V, 50 V/V, 100 V/V, and 200 V/V, with the INA4180A2IPWR being 50 V/V.
Applications
- Motor Control: Used in motor control systems to monitor current flow and protect against overcurrent conditions.
- Battery Monitoring: Employed in battery management systems to monitor battery health and charging/discharging currents.
- Power Management: Utilized in power management systems to monitor and control power consumption.
- Lighting Control: Used in lighting control systems to monitor and adjust current levels.
- Overcurrent Detection: Implemented in various systems to detect and prevent overcurrent conditions.
- Solar Inverters: Used in solar inverter systems to monitor and manage current flow from solar panels.
Q & A
- What is the operating temperature range of the INA4180A2IPWR?
The operating temperature range is –40°C to 125°C.
- What is the common-mode range of the INA4180A2IPWR?
The common-mode range is from –0.2 V to +26 V.
- What is the bandwidth of the INA4180A2IPWR?
The bandwidth is 210 kHz for A2 devices.
- What are the gain options available for the INA4180 series?
The gain options are 20 V/V, 50 V/V, 100 V/V, and 200 V/V, with the INA4180A2IPWR being 50 V/V.
- What is the maximum output current per channel of the INA4180A2IPWR?
The maximum output current per channel is 8 mA.
- What is the quiescent current of the INA4180A2IPWR?
The typical quiescent current is 690 µA, with a maximum of 900 µA.
- What is the supply voltage range for the INA4180A2IPWR?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the output type of the INA4180A2IPWR?
The output type is rail-to-rail.
- What are some common applications of the INA4180A2IPWR?
Common applications include motor control, battery monitoring, power management, lighting control, overcurrent detection, and solar inverters.
- What package type is the INA4180A2IPWR available in?
The INA4180A2IPWR is available in a 14-pin TSSOP package.
