INA194AIDBVR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SC-74A, SOT-753 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Sensing Method | High-Side |
| Voltage - Input | -16V ~ 80V |
| Current - Output | - |
| Supplier Device Package | SOT-23-5 |
| Accuracy | ±3% |
| Function | Current Monitor |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | INA194 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
INA194AIDBVR High-Speed Current Sense Amplifier Current Monitor Regulator High-Side
The INA194AIDBVR is a single-channel, high-speed voltage-output current shunt monitor from TI, designed for precise high-side or low-side current sensing across a wide common-mode voltage range. Operating from a 2.7V to 18V single supply with a maximum quiescent current of 950μA, it features a fixed 50V/V gain, 300kHz bandwidth, and 1V/μs slew rate, enabling accurate real-time current measurement in fast control loops. It supports common-mode voltages from -16V to +80V, independent of the supply voltage, with a maximum gain error of 1% and 100ppm/°C gain error drift, ensuring reliable performance over the -40°C to +125°C industrial temperature range.
INA194AIDBVR Amplifier Key Features
● 50V/V internal gain, 1% maximum gain error across temperature.
● 300kHz bandwidth, 1V/μs slew rate for fast transient response.
● 2.7V–18V supply, 950μA max quiescent current (Iq)
● 100dB minimum CMRR
TI current sense amplifier Application Scenarios
● Power Management Systems: Overcurrent protection and load current monitoring in DC-DC converters and regulators.
● Battery Management (BMS): Charge/discharge current sensing in lithium-ion and lead-acid battery packs.
● Industrial Automation: Motor control, PLC current feedback, and factory automation equipment.
● Automotive Electronics: Automotive power systems, ECU load monitoring, and 12V/24V vehicle systems.
● Telecom & Server Power: Precision current sensing in telecom power supplies and server VRMs.
● Portable Electronics: Notebook, smartphone, and wearable device power management and battery protection.
Alternative amplifiers
1. TI INA195AIDBVR: Pin-compatible current sense amp with 100V/V fixed gain, ideal for higher-sensitivity low-current measurements.
2. TI INA219AIDR: I2C digital output current/power monitor with 26V common-mode, integrated ADC for system-level monitoring.
3. Maxim MAX4080SASA+: High-side current sense amp with -20V to +80V CM range, 50V/V gain, SOT-23-5 package for direct drop-in replacement.
4. Linear Technology LTC6102ACS6: -18V to +80V CM range, 50V/V gain, 500kHz bandwidth, low-offset high-precision alternative for industrial designs.
5. onsemi NCS211R: 2.7V-18V supply, -16V to +80V CM, 50V/V gain, cost-competitive SOT-23-5 current sense amplifier.
