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INA240A1/2/3/4 Bidirectional Current Detection Amplifier Monitor INA240 Module
Product Features:
1. The gain accuracy is as high as ± 0.2%, ensuring accurate current detection.
2. It has enhanced PWM suppression and strong anti-interference ability.
3. Bidirectional current detection, supporting bidirectional monitoring of charging and discharging.
4. Low offset voltage ± 25 µ V, improving the accuracy of small current measurement.
5. Operating temperature -40 ° C~125 ° C, suitable for industrial applications.
Product Introduction:
INA240 is a high-precision bidirectional current detection amplifier launched by TI, supporting a wide common mode voltage of -4V to 80V, with enhanced PWM suppression function, suitable for high-precision current detection scenarios such as motor drive, power management, BMS (Battery Management System), etc.
Parameter specifications:
Working voltage (Vs): 2.7V -5.5V
Common mode voltage (Vcm): -4V to+80V (strong anti negative voltage capability)
Bandwidth (BW): 400kHz (A1-A3), 200kHz (A4)
Gain error: ± 0.2% (maximum value, A1-A3)
Low offset voltage: ± 25 µ V (typical value)
Working temperature: -40 ° C to+125 ° C
Module size: 20mm * 21mm
Model difference:
INA240A1: Gain=20V/V
INA240A2: Gain=50V/V
INA240A3: Gain=100V/V
INA240A4: Gain=200V/V
Function Description:
1. Ultra wide common mode voltage (-4V~80V), suitable for high interference environments such as motors and power supplies
2. High precision (± 0.2% gain error), precise current detection
3. Enhanced PWM suppression to reduce the impact of switching noise
4. Bidirectional current detection (supporting positive and negative current measurement)
5. Low offset voltage (± 25 µ V) to improve the accuracy of small current measurement
6. Wide working temperature range, suitable for industrial applications
Typical applications:
Motor drive (BLDC/PMSM/servo motor current detection)
Battery Management System (BMS) (Charge and Discharge Current Monitoring)
Power management (DC-DC converter, inverter current detection)
Industrial automation (PLC, robot current feedback)
Automotive Electronics (OBC, Electric Drive System Current Monitoring)
Pin Definition (SOIC-8/MSOP-8)
1. IN+in-phase input (connected to the high end of the current sampling resistor)
2. IN - Inverted input (connected to the low end of the current sampling resistor)
3. VCC power input (2.7V-5.5V)
4. GND ground wire
5. OUT analog output (related to REF)
6. GND ground wire
Package Include:
INA240 module X1
6PIN Single row needle (unwelded) X1
Am 13.01.2026 hat der Verkäufer die folgenden Angaben hinzugefügt: