Overview
The INA168QDBVRQ1, produced by Texas Instruments, is a high-side, unidirectional current sense amplifier. This device is part of the INA1x8-Q1 family and is specifically designed for automotive applications, meeting the AEC-Q100 qualification standards. It features a wide input common-mode voltage range, low quiescent current, and is available in a compact SOT-23-5 package. The INA168-Q1 is ideal for measuring small differential voltages in the presence of large common-mode voltages, making it suitable for various automotive and industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Common-Mode Voltage Range | 2.7 V to 60 V | V |
| Power Supply Voltage Range | 2.7 V to 60 V | V |
| Quiescent Current | 25 µA (Typical) | µA |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOT-23-5 (DBV) | |
| Number of Pins | 5 | |
| Body Size (Nominal) | 2.90 mm × 1.60 mm | mm |
| Thickness | 1.2 mm | mm |
| Pitch | 0.95 mm | mm |
| Max Height | 1.45 mm | mm |
| ESD Classification | HBM Level 2, CDM Level C6 |
Key Features
- Independent Supply and Input Common-Mode Voltages
- Single Resistor Gain Set
- Low Quiescent Current (25 µA Typical)
- Wide Temperature Range: –40°C to +125°C
- AEC-Q100 Qualified for Automotive Applications
- Complete Unipolar High-Side Current-Measurement Circuit
- Adjustable Gain via External Load Resistor
- High Accuracy and Low Offset Voltage
Applications
- Electric Power Steering (EPS) Systems
- Body Control Modules
- Brake Systems
- Electronic Stability Control (ESC) Systems
- Other automotive and industrial applications requiring high-side current sensing
Q & A
- What is the input common-mode voltage range of the INA168-Q1?
The input common-mode voltage range of the INA168-Q1 is from 2.7 V to 60 V.
- What is the typical quiescent current of the INA168-Q1?
The typical quiescent current of the INA168-Q1 is 25 µA.
- What are the available package types for the INA168-Q1?
The INA168-Q1 is available in a TSSOP-8 package and a SOT-23-5 package.
- What is the operating temperature range of the INA168-Q1?
The operating temperature range of the INA168-Q1 is from –40°C to +125°C.
- Is the INA168-Q1 qualified for automotive applications?
Yes, the INA168-Q1 is AEC-Q100 qualified for automotive applications.
- How is the gain set for the INA168-Q1?
The gain for the INA168-Q1 is set using a single external load resistor.
- What are some common applications of the INA168-Q1?
Common applications include Electric Power Steering (EPS) Systems, Body Control Modules, Brake Systems, and Electronic Stability Control (ESC) Systems.
- What is the ESD classification of the INA168-Q1?
The INA168-Q1 has an HBM ESD classification of Level 2 and a CDM ESD classification of Level C6.
- Can the INA168-Q1 measure bidirectional currents?
Yes, by using two INA168-Q1 devices, bidirectional current measurement can be achieved, especially when used with an ADC in differential-mode operation.
- What is the maximum output current of the INA168-Q1?
The maximum output current of the INA168-Q1 is 400 µA.
