INA223
- Wide Common-Mode Range: 0 V to 26 V
- ±100 µV Offset (Max, Gain = 300 V/V)
- Accuracy
- ±0.25% Shunt Voltage Gain Error (Max)
- ±0.15% Bus Voltage Gain Error (Max)
- 1.25% Power Error (Max)
- 0.3 µV/°C Offset Drift (Max)
- 50 ppm/°C Gain Drift (Max)
- Programmable Gains
- Current Shunt Voltage Gains: 20, 128, 300
- Bus Voltage Attenuations: 1/10, 1/5, 2/5
- Monitors/Measures/Reports:
- Instantaneous Power
- Bus Voltage
- Load Current
- Quiescent Current: 250 µA (Max)
- Shutdown Current: 1 µA (Max)
The INA223 is a voltage-output device that monitors the current, bus voltage, and power of a supply line by sensing a voltage drop across a shunt at common-mode voltages from 0 V to 26 V. The common-mode voltage range is independent of the supply voltage. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV, full-scale.
The INA223 includes a two-wire interface used for adjusting the configuration settings of the device. The interface is used to control the signal (current shunt voltage, bus voltage, or power) that is directed to the device output. Multiple gain and attenuation settings can be programmed through the two-wire interface to allow for application-specific configurations. The programmable gain feature also allows the device to be operated over a much wider dynamic current load range without having to switch the sensing element used.
A shutdown feature is available to disable the device and effectively disconnect it from the shunt resistor and supply voltage, thus reducing the drain on the battery.
The INA223 operates from a single +2.7-V to +5.5-V supply, drawing a maximum supply current of 250 µA. It is specified over the extended temperature range of –40°C to +105°C, and is offered in an SON-10 package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Analog Output Current Shunt and Voltage Instantaneous Power Monitor datasheet | 2012年 6月 13日 | |
Application note | Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers | PDF | HTML | 2024年 11月 18日 | |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 2022年 1月 25日 | |
Application brief | Energy and Power Monitoring with Digital Current Sensors | 2017年 5月 25日 | ||
Application note | Understanding the I2C Bus | PDF | HTML | 2015年 6月 30日 | |
EVM User's guide | INA223EVM User's Guide | 2012年 6月 11日 |
設計與開發
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ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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產品
精密度運算放大器 (Vos<1mV)
一般用途運算放大器
音訊運算放大器
轉阻放大器
高速運算放大器 (GBW ≥ 50 MHz)
功率運算放大器
視訊放大器
線路驅動器
轉導放大器與雷射驅動器
全差分放大器
精確 ADC
生物感測 AFE
高速 ADC (≥10 MSPS)
觸控式螢幕控制器
差分放大器
儀器放大器
音訊線路接收器
類比電流感測放大器
數位電源監測器
配備整合式分流電阻器的類比電流感測放大器
具整合式分流電阻器的數位電源監測器
晶粒與晶圓服務
RF 接收器
RF 發射器
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支援產品和硬體
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類比電流感測放大器
數位電源監測器
CIRCUIT060035 — 具有窗型比較器電路的雙向電流感測
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TIDA-00302 — 具瞬態穩定性的電流分流監控器參考設計
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
WSON (DSK) | 10 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點