Overview
The INA201AIDG4, produced by Texas Instruments, is a high-side current-shunt monitor with a voltage output and an integrated open-drain comparator. This device is part of the INA200 series, which includes the INA200, INA201, and INA202. It is designed to sense voltage drops across shunts at common-mode voltages ranging from –16 V to 80 V. The INA201AIDG4 operates from a single supply voltage of 2.7 V to 18 V and is available in SOIC-8 and VSSOP-8 packages. It features high accuracy, a wide bandwidth, and a low quiescent current, making it suitable for various applications requiring precise current monitoring.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Common-Mode Input Range | –16 V to 80 V | V |
| Bandwidth | 300 kHz (INA201) | kHz |
| Quiescent Current | 1800 μA (Maximum) | μA |
| Output Voltage Scales | 20 V/V, 50 V/V, 100 V/V | V/V |
| Comparator Threshold | 0.6 V | V |
| Input Bias Current | ±9 μA to ±16 μA | μA |
| Output Impedance | 1.5 Ω | Ω |
| Maximum Capacitive Load | 10 nF | nF |
| Operating Temperature Range | –40°C to +125°C | °C |
| Packages | SOIC-8, VSSOP-8 |
Key Features
- High accuracy with a maximum error of 3.5% over temperature.
- Wide common-mode input range from –16 V to 80 V.
- Integrated open-drain comparator with a 0.6-V threshold.
- External dividers for setting the current trip point.
- Latching capability in the comparator, which can be made transparent by grounding or leaving open the RESET pin.
- Low quiescent current of 1800 μA maximum.
- Available in small packages: SOIC-8 and VSSOP-8.
Applications
- Notebook Computers
- Cell Phones
- Telecom Equipment
- Automotive Systems
- Power Management
- Battery Chargers
- Welding Equipment
Q & A
- What is the common-mode input range of the INA201AIDG4?
The common-mode input range is from –16 V to 80 V. - What are the available output voltage scales for the INA201AIDG4?
The output voltage scales are 20 V/V, 50 V/V, and 100 V/V. - What is the bandwidth of the INA201AIDG4?
The bandwidth is 300 kHz for the INA201. - How does the comparator in the INA201AIDG4 work?
The comparator is an open-drain type with a 0.6-V threshold. It includes a latching capability that can be made transparent by grounding or leaving open the RESET pin. - What is the quiescent current of the INA201AIDG4?
The maximum quiescent current is 1800 μA. - In what packages is the INA201AIDG4 available?
The device is available in SOIC-8 and VSSOP-8 packages. - What is the operating temperature range of the INA201AIDG4?
The operating temperature range is from –40°C to +125°C. - What are some typical applications of the INA201AIDG4?
Typical applications include notebook computers, cell phones, telecom equipment, automotive systems, power management, battery chargers, and welding equipment. - How is the current trip point set in the INA201AIDG4?
The current trip point is set using external dividers. - What is the output impedance of the INA201AIDG4?
The output impedance is 1.5 Ω.
