Overview
The INA199C1DCKR, produced by Texas Instruments, is a 26-V, bidirectional, zero-drift, voltage-output current-shunt monitor. This device is designed for high-precision current measurement and can be used in both low-side and high-side configurations. It features a wide common-mode range of –0.3 V to 26 V, enabling accurate measurements across a broad range of input voltages. The zero-drift topology ensures high-precision measurements with a maximum input offset voltage of ±150 μV and a temperature drift of 0.5 μV/°C over the full temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2.7 to 26 | V |
| Common-Mode Input Voltage | –0.3 to 26 | V |
| Offset Voltage | ±150 μV (Maximum) | μV |
| Gain Error (Maximum Over Temperature) | ±1% (C Version) | % |
| Gain | 50 V/V (INA199x1) | V/V |
| Quiescent Current | 100 μA (Maximum) | μA |
| Operating Temperature Range | –40 to 125 | °C |
| Bandwidth (CLOAD = 10 pF) | 80 kHz (INA199x1) | kHz |
| Slew Rate | 0.4 V/μs | V/μs |
| Voltage Noise Density | 25 nV/√Hz | nV/√Hz |
Key Features
- Wide Common-Mode Range: –0.3 V to 26 V, allowing for measurements on high-voltage rails.
- Zero-Drift Topology: Ensures high-precision measurements with a maximum input offset voltage of ±150 μV and a temperature drift of 0.5 μV/°C.
- Choice of Gains: Available in gains of 50 V/V, 100 V/V, and 200 V/V to accommodate different application requirements.
- Low Quiescent Current: Maximum of 100 μA, making it suitable for power-sensitive applications.
- Compact Packages: Available in 6-Pin SC70 and 10-Pin UQFN packages.
Applications
- Notebook Computers: For power management and current monitoring.
- Cell Phones: For battery management and charging systems.
- Qi-Compliant Wireless Charging Transmitters: For precise current measurement during wireless charging.
- Telecom Equipment: For monitoring and managing power consumption.
- Power Management: For overcurrent protection and system optimization.
- Battery Chargers: For accurate current measurement and charging control.
Q & A
- What is the common-mode input voltage range of the INA199C1DCKR?
The common-mode input voltage range is –0.3 V to 26 V.
- What is the maximum input offset voltage of the INA199C1DCKR?
The maximum input offset voltage is ±150 μV.
- What are the available gain options for the INA199 series?
The INA199 series is available in gains of 50 V/V, 100 V/V, and 200 V/V.
- What is the quiescent current of the INA199C1DCKR?
The maximum quiescent current is 100 μA.
- What are the operating temperature ranges for the INA199C1DCKR?
The operating temperature range is –40°C to 125°C.
- What packages are available for the INA199C1DCKR?
The device is available in 6-Pin SC70 and 10-Pin UQFN packages.
- What is the bandwidth of the INA199x1?
The bandwidth for the INA199x1 is 80 kHz with a 10 pF load capacitance.
- What is the slew rate of the INA199C1DCKR?
The slew rate is 0.4 V/μs.
- What is the voltage noise density of the INA199C1DCKR?
The voltage noise density is 25 nV/√Hz.
- What are some typical applications for the INA199C1DCKR?
Typical applications include notebook computers, cell phones, Qi-compliant wireless charging transmitters, telecom equipment, power management, and battery chargers.
