Overview
The INA201AIDGKTG4 from Texas Instruments is a high-side current-shunt monitor with a voltage output and an integrated comparator. This device is part of the INA200 series, which includes the INA200, INA201, and INA202. The INA201 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 draws a maximum of 1800 μA of supply current. It is available in SOIC-8 and VSSOP-8 packages, offering compact solutions for space-constrained designs. The INA201 features high accuracy with a maximum error of 3.5% over temperature and a bandwidth of 300 kHz.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Common-Mode Input Range | –16 | 80 | V | |
| Bandwidth | 300 | kHz | ||
| Quiescent Current | 1800 | μA | ||
| Offset Voltage, RTI | ±0.5 | ±2.5 | ±3.5 | mV |
| Gain Error | ±0.2% | ±1% | ±2% | |
| Output Impedance | 1.5 | Ω | ||
| Maximum Capacitive Load | 10 | nF | ||
| Supply Voltage Range | 2.7 | 18 | V | |
| Operating Temperature Range | –40 | 125 | °C |
Key Features
- High-side current-shunt monitor with voltage output and integrated comparator.
- Common-mode input range from –16 V to 80 V.
- High accuracy with a maximum error of 3.5% over temperature.
- Bandwidth up to 300 kHz.
- Available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V.
- Open-drain comparator with internal 0.6-V reference and latching capability.
- Single 2.7-V to 18-V supply operation.
- Compact SOIC-8 and VSSOP-8 packages.
Applications
- Notebook computers
- Cell phones
- Telecom equipment
- Automotive systems
- Power management systems
- Battery chargers
- Welding equipment
Q & A
- What is the common-mode input range of the INA201?
The common-mode input range of the INA201 is from –16 V to 80 V.
- What is the bandwidth of the INA201?
The bandwidth of the INA201 is up to 300 kHz.
- What are the available output voltage scales for the INA201?
The INA201 is available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V.
- How does the comparator in the INA201 work?
The comparator in the INA201 is an open-drain comparator with an internal 0.6-V reference and latching capability. External dividers set the current trip point.
- What is the supply voltage range for the INA201?
The INA201 operates from a single 2.7-V to 18-V supply.
- What are the package options for the INA201?
The INA201 is available in SOIC-8 and VSSOP-8 packages.
- What is the maximum quiescent current of the INA201?
The maximum quiescent current of the INA201 is 1800 μA.
- What is the operating temperature range of the INA201?
The operating temperature range of the INA201 is from –40°C to 125°C.
- What are some typical applications of the INA201?
The INA201 is used in notebook computers, cell phones, telecom equipment, automotive systems, power management systems, battery chargers, and welding equipment.
- How accurate is the INA201 in terms of offset voltage?
The INA201 has an offset voltage of ±0.5 mV to ±3.5 mV over the operating temperature range.
