Overview
The INA2181A1IDGSR is a high-precision, bidirectional, current-sense amplifier produced by Texas Instruments. This device is part of the INA2181 family and is designed for cost-optimized applications. It is presented in a compact VSSOP-10 package, making it suitable for space-constrained applications. The INA2181A1IDGSR operates over a wide temperature range of -40°C to +125°C and is powered by a single supply voltage of 2.7V to 5.5V, ensuring reliable performance in various conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Package | VSSOP (DGS) - 10 pins |
| Operating Temperature Range (°C) | -40 to 125 |
| Common-mode Voltage (V) | -0.2 to 26 |
| Input Offset (±) (max) (µV) | 150 at VCM = 0 V, 500 at VCM = 12 V |
| Input Offset Drift (±) (typ) (µV/°C) | 0.2 |
| Voltage Gain (V/V) | 20, 50, 100, 200 |
| Bandwidth (kHz) | 105, 150, 210, 350 |
| Supply Voltage (V) | 2.7 to 5.5 |
| Quiescent Current (max) (mA) | 0.5 |
| Number of Channels | 2 |
| Gain Error (%) | ±1% (max) |
| Slew Rate (V/µs) | 2 |
Key Features
- Bidirectional current-sensing capability
- High bandwidth: up to 350 kHz (A1 devices)
- Low offset voltage: ±150 µV (max) at VCM = 0 V, ±500 µV (max) at VCM = 12 V
- High accuracy: ±1% gain error (max), 1-µV/°C offset drift (max)
- Flexible gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V
- Low power consumption: maximum supply current of 500 µA
- Robust design with ESD protection
- Easy to integrate and flexible configuration
Applications
The INA2181A1IDGSR is versatile and can be used in various applications, including:
- System monitoring and control
- Industrial systems
- Power management solutions
- Battery-operated devices due to its low power consumption
- High-side and low-side current sensing in automotive, industrial, and consumer electronics
Q & A
- Q: What is the operating temperature range of the INA2181A1IDGSR?
A: The INA2181A1IDGSR operates over a temperature range of -40°C to +125°C.
- Q: What are the available gain options for the INA2181A1IDGSR?
A: The INA2181A1IDGSR is available with gain options of 20 V/V, 50 V/V, 100 V/V, and 200 V/V.
- Q: What is the maximum supply current of the INA2181A1IDGSR?
A: The maximum supply current of the INA2181A1IDGSR is 500 µA.
- Q: What is the common-mode voltage range of the INA2181A1IDGSR?
A: The common-mode voltage range is from -0.2 V to +26 V.
- Q: What is the bandwidth of the INA2181A1IDGSR?
A: The bandwidth can be up to 350 kHz depending on the device variant.
- Q: Is the INA2181A1IDGSR suitable for battery-operated applications?
A: Yes, due to its low power consumption, it is suitable for battery-operated applications.
- Q: What type of package does the INA2181A1IDGSR come in?
A: The INA2181A1IDGSR comes in a VSSOP (DGS) package with 10 pins.
- Q: Does the INA2181A1IDGSR have ESD protection?
A: Yes, the INA2181A1IDGSR includes ESD protection for enhanced durability.
- Q: What is the warranty period for the INA2181A1IDGSR from Ovaga?
A: Ovaga offers a 1-year warranty on the INA2181A1IDGSR.
- Q: How can I ensure the authenticity of the INA2181A1IDGSR from Texas Instruments?
A: Ensure you purchase from authorized distributors or suppliers who rigorously test and verify the credentials of original Texas Instruments manufacturers and authorized agents.
