Overview
The INA201AIDGKR is a high-side current-shunt monitor produced by Texas Instruments. It is part of the INA200 series, which includes the INA200, INA201, and INA202 devices. These devices are designed to sense voltage drops across shunts at common-mode voltages ranging from –16 V to 80 V. The INA201AIDGKR specifically offers a gain of 50 V/V, making it suitable for a variety of current sensing applications. It features an integrated open-drain comparator with a 0.6-V internal reference and latching capability. The device operates from a single 2.7-V to 18-V supply and is available in compact SOIC-8 and VSSOP-8 packages.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Gain | - | - | 50 | - | V/V |
| Common-mode input range | TA = –40°C to 125°C | –16 | - | 80 | V |
| Offset voltage, RTI | TA = 25°C | ±0.5 | ±2.5 | ±3.5 | mV |
| Bandwidth | CLOAD = 5 pF | - | 300 | - | kHz |
| Quiescent current | VOUT = 2 V, VSENSE = 0 mV | 1350 | 1800 | 1850 | μA |
| Operating power supply | TA = –40°C to 125°C | 2.7 | - | 18 | V |
| Operating temperature | - | –40 | - | 125 | °C |
| Package | - | SOIC-8, VSSOP-8 | - | - | - |
Key Features
- Complete current sense solution with high-side measurement capability.
- Gain of 50 V/V for the INA201AIDGKR model.
- 0.6-V internal voltage reference and integrated open-drain comparator.
- Latching capability on the comparator that can be made transparent by grounding or leaving open the RESET pin.
- High accuracy with a maximum error of 3.5% over temperature.
- Bandwidth up to 300 kHz for the INA201 model.
- Quiescent current of up to 1800 μA.
- Compact SOIC-8 and VSSOP-8 packages.
- Extended operating temperature range of –40°C to +125°C.
Applications
- Notebook computers
- Cell phones
- Telecom equipment
- Automotive systems
- Power management systems
- Battery chargers
- Welding equipment
Q & A
- What is the gain of the INA201AIDGKR?
The gain of the INA201AIDGKR is 50 V/V.
- What is the common-mode input range of the INA201AIDGKR?
The common-mode input range is from –16 V to 80 V.
- What is the bandwidth of the INA201AIDGKR?
The bandwidth is up to 300 kHz.
- What is the quiescent current of the INA201AIDGKR?
The quiescent current is up to 1800 μA.
- What are the package options for the INA201AIDGKR?
The package options are SOIC-8 and VSSOP-8.
- What is the operating temperature range of the INA201AIDGKR?
The operating temperature range is from –40°C to +125°C.
- Does the INA201AIDGKR have an integrated comparator?
Yes, it has an integrated open-drain comparator with a 0.6-V internal reference.
- What is the purpose of the RESET pin on the INA201AIDGKR?
The RESET pin is used to reset the comparator output and can be grounded or left open to make the latching capability transparent.
- What are some typical applications of the INA201AIDGKR?
Typical applications include notebook computers, cell phones, telecom equipment, automotive systems, power management systems, battery chargers, and welding equipment.
- How does the INA201AIDGKR handle power-supply noise?
The device requires power-supply bypass capacitors for stability, and additional decoupling capacitors may be needed in noisy or high-impedance power supply environments.
