Texas Instruments 德州仪器 INA225 电流分流监控器
德州仪器 INA225 电流分流监控器是一款电压输出、电流感测放大器，能够在 0V 至 36V 共模电压上感测电流感测电阻的压降，共模电压与电源电压无关。此器件是一款双向、电流分流监控器，允许外部基准用于测量双向流入电流感测电阻器的电流。可通过两个增益选择端子选择四个离散增益级别，从而设定增益 25V/V、50V/V、100V/V 和 200V/V。凭借低偏移、零漂移架构和精密的增益值，该器件可感测低至 10mV 的满量程电流分流电阻的最大压降。同时能够在整个工作温度范围内保持很高的测量精度。
The Texas Instruments INA225-Q1 variant of this device is AEC-Q100 qualified for use in automotive applications.
特性
- 0V to 36V common-mode range
- ±150µV (max, all gains) offset voltage
- 0.5µV/°C (max) offset voltage drift
- Gain Accuracy, Over Temperature (Max)
- 25V/V, 50V/V: ±0.15%
- 100V/V: ±0.2%
- 200V/V: ±0.3%
- 10ppm/°C gain drift
- 250kHz bandwidth (Gain = 25V/V)
- Programmable Gains
- G1 = 25V/V
- G2 = 50V/V
- G3 = 100V/V
- G4 = 200V/V
- 350µA (max) quiescent current
- MSOP-8 package
应用
- Power supplies
- Motor control
- Computers
- Telecom equipment
- Power management
- Test and measurement
Datasheets
Additional Resource
Block Diagram
Typical Application CIrcuit
Related Product
发布日期: 2015-05-12
| 更新日期: 2023-11-08