Overview
The INA201AID from Texas Instruments is a high-side current-shunt monitor with a voltage output and an integrated comparator. This device is part of the INA20x series, which includes the INA200, INA201, and INA202, each offering different gain options. The INA201AID specifically provides a gain of 50 V/V. It is designed to sense voltage drops across shunts at common-mode voltages ranging from –16 V to 80 V, making it versatile for various high-side current sensing applications. The device operates from a single 2.7-V to 18-V supply and is available in SOIC-8 and VSSOP-8 packages, ensuring a compact footprint while maintaining high performance over an extended operating temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 50 V/V | |
| Common-Mode Input Range | –16 to 80 V | V |
| Bandwidth | 300 kHz | kHz |
| Quiescent Current | 1800 μA (Maximum) | μA |
| Supply Voltage Range | 2.7 V to 18 V | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Options | SOIC-8, VSSOP-8 | |
| Internal Voltage Reference | 0.6 V | V |
| Comparator Output | Open-Drain |
Key Features
- Complete Current Sense Solution: The INA201AID provides a comprehensive solution for high-side current sensing.
- High Accuracy: The device has a maximum error of 3.5% over temperature.
- Internal Open-Drain Comparator: Includes a comparator with a 0.6-V internal voltage reference and latching capability.
- Common-Mode Range: Operates over a wide common-mode range from –16 V to 80 V.
- Compact Packaging: Available in SOIC-8 and VSSOP-8 packages.
- Extended Operating Temperature Range: Specified over –40°C to +125°C.
Applications
- Notebook Computers: For power management and battery monitoring.
- Cell Phones: For battery and power management systems.
- Telecom Equipment: For monitoring and controlling current in various telecom applications.
- Automotive: For current sensing in automotive systems.
- Power Management: For monitoring and controlling current in power supplies and battery chargers.
- Welding Equipment: For current monitoring and control in welding applications.
Q & A
- What is the gain of the INA201AID? The gain of the INA201AID is 50 V/V.
- What is the common-mode input range of the INA201AID? The common-mode input range is from –16 V to 80 V.
- What is the bandwidth of the INA201AID? The bandwidth is 300 kHz.
- What is the quiescent current of the INA201AID? The maximum quiescent current is 1800 μA.
- What is the supply voltage range for the INA201AID? The supply voltage range is from 2.7 V to 18 V.
- What are the package options for the INA201AID? The device is available in SOIC-8 and VSSOP-8 packages.
- Does the INA201AID have an internal voltage reference? Yes, it has a 0.6-V internal voltage reference.
- What type of comparator output does the INA201AID have? The comparator output is open-drain.
- What is the operating temperature range of the INA201AID? The operating temperature range is from –40°C to +125°C.
- What are some typical applications of the INA201AID? Typical applications include notebook computers, cell phones, telecom equipment, automotive systems, power management, and welding equipment.
