Overview
The INA4180-Q1 is a quad-channel current sense amplifier designed by Texas Instruments for cost-optimized applications, particularly in the automotive sector. This device is part of the INAx180-Q1 family, which includes single-channel (INA180-Q1) and dual-channel (INA2180-Q1) variants. The INA4180-Q1 is AEC-Q100 qualified, ensuring it meets stringent automotive standards. It operates over an extended temperature range of –40°C to +125°C and is capable of sensing voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 14-pin TSSOP | |
| Operating Temperature Range | –40°C to +125°C | °C |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Common-Mode Range | –0.2 V to +26 V | V |
| Bandwidth | 350 kHz (A1 devices) | kHz |
| Offset Voltage | ±150 µV (max) at VCM = 0 V | 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 | 900 µA (max) | µA |
Key Features
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ TA ≤ +125°C
- HBM ESD classification level 2 and CDM ESD classification level C6
- Functional Safety-Capable
- High bandwidth: 350 kHz (A1 devices)
- Accuracy: ±1% gain error (max), 1-µV/°C offset drift (max)
- Integrated matched resistor gain network for minimized gain error and reduced temperature drift
- Single 2.7-V to 5.5-V power supply operation
Applications
- Automotive systems: battery management, motor control, and power management
- Power supply monitoring and overcurrent detection
- Lighting control systems
- Industrial automation and control systems
Q & A
- What is the operating temperature range of the INA4180-Q1?
The INA4180-Q1 operates over a temperature range of –40°C to +125°C.
- What are the gain options available for the INA4180-Q1?
The INA4180-Q1 is available with gain options of 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- What is the common-mode range of the INA4180-Q1?
The common-mode range of the INA4180-Q1 is from –0.2 V to +26 V.
- What is the bandwidth of the INA4180-Q1?
The bandwidth of the INA4180-Q1 is 350 kHz for A1 devices.
- What is the maximum quiescent current of the INA4180-Q1?
The maximum quiescent current of the INA4180-Q1 is 900 µA.
- Is the INA4180-Q1 AEC-Q100 qualified?
- What type of package does the INA4180-Q1 come in?
The INA4180-Q1 comes in a 14-pin TSSOP package.
- What is the supply voltage range for the INA4180-Q1?
The supply voltage range for the INA4180-Q1 is from 2.7 V to 5.5 V.
- What are some typical applications of the INA4180-Q1?
The INA4180-Q1 is typically used in automotive systems, power supply monitoring, overcurrent detection, and lighting control systems.
- Is the INA4180-Q1 functional safety-capable?
