Model No: INA194AQDBVRQ1
Texas Instruments INA194AQDBVRQ1
Manufacturer: Texas Instruments
SEMICON NO.: INA194AQDBVRQ1
Package: SOT-23-5
Stock: In stock
Description: Current Monitor Regulator High-Side
SEMICON NO.: INA194AQDBVRQ1
Package: SOT-23-5
Stock: In stock
Description: Current Monitor Regulator High-Side
Quantity :
| Mfr | Texas Instruments |
| Device Type | Current Shunt Monitor (Current Sense Amplifier) |
| Number of Channels | 1 (Single) |
| Sensing Method | High-Side |
| Gain | 50 V/V (Fixed) |
| Common-Mode Input Voltage (VCM) | -16 V to +80 V |
| Supply Voltage (VS) | 2.7 V to 18 V |
| Quiescent Current (IQ) | 0.95 mA(Max) |
| Accuracy | ±3% |
| Input Offset Voltage | 2 mV(Max), 0.5 mV(Typ) |
| Common Mode Rejection Ratio (CMRR) | 100 dB(Min) |
| Operating Temperature | -40°C to +125° |
| Package | SOT-23-5 |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
INA194AQDBVRQ1 high-side current shunt monitor
The INA194AQDBVRQ1 is an automotive-grade, high-side current shunt monitor from Texas Instruments, engineered to precisely measure current by sensing voltage drops across external shunt resistors across a wide common-mode voltage range. Fabricated in a compact SOT-23-5 package, this device is qualified to AEC-Q100 standards, making it a robust and reliable choice for demanding automotive and industrial environments where accurate current monitoring is essential.
Performance Characteristic and Applications
This device operates over a broad common-mode voltage range from -16V to 80V, independent of its supply voltage, enabling it to withstand system transients and faults without damage. The INA194AQDBVRQ1 features a fixed voltage gain of 50 V/V and delivers a bandwidth of up to 500 kHz, which is sufficient for current control loops and monitoring the health of DC motors. It offers a maximum accuracy of ±3% over the full -40°C to +125°C temperature range and has a minimum common-mode rejection ratio (CMRR) of 100 dB, ensuring stable, precise measurements even in noisy environments.
Primarily targeting automotive systems, this current sensor is designed for use in battery management, electronic control units (ECUs), motor control, and electric power steering, where precise and reliable current monitoring is critical for performance and safety. Its robust feature set and wide common-mode range also make it a suitable solution for industrial automation, power distribution systems, and HVAC equipment, enabling efficient operation and overcurrent protection in various power management applications.
Alternative current sense amplifiers
For design flexibility, several alternative models from Texas Instruments offer different performance trade-offs:
● INA281 is a newer, more precise alternative with a lower minimum common-mode voltage of -4V but enhanced performance at low sense voltages, making it a better option for applications requiring accurate measurement at near-zero differential inputs.
●INA240-Q1 is an automotive-grade device specifically designed for robust operation in low Vsense conditions, offering superior accuracy where the INA194 excels but may falter.
● INA293-Q1 is a high-precision, automotive current-sense amplifier with a broader common-mode voltage range up to 110V, suitable for 48V and higher-voltage systems.
● INA193AQDBVRQ1 is a pin-to-pin compatible alternative with the same functionality but a different gain of 20 V/V, allowing for scaling of the output voltage relative to the sense current.
The INA194AQDBVRQ1 is an automotive-grade, high-side current shunt monitor from Texas Instruments, engineered to precisely measure current by sensing voltage drops across external shunt resistors across a wide common-mode voltage range. Fabricated in a compact SOT-23-5 package, this device is qualified to AEC-Q100 standards, making it a robust and reliable choice for demanding automotive and industrial environments where accurate current monitoring is essential.
Performance Characteristic and Applications
This device operates over a broad common-mode voltage range from -16V to 80V, independent of its supply voltage, enabling it to withstand system transients and faults without damage. The INA194AQDBVRQ1 features a fixed voltage gain of 50 V/V and delivers a bandwidth of up to 500 kHz, which is sufficient for current control loops and monitoring the health of DC motors. It offers a maximum accuracy of ±3% over the full -40°C to +125°C temperature range and has a minimum common-mode rejection ratio (CMRR) of 100 dB, ensuring stable, precise measurements even in noisy environments.
Primarily targeting automotive systems, this current sensor is designed for use in battery management, electronic control units (ECUs), motor control, and electric power steering, where precise and reliable current monitoring is critical for performance and safety. Its robust feature set and wide common-mode range also make it a suitable solution for industrial automation, power distribution systems, and HVAC equipment, enabling efficient operation and overcurrent protection in various power management applications.
Alternative current sense amplifiers
For design flexibility, several alternative models from Texas Instruments offer different performance trade-offs:
● INA281 is a newer, more precise alternative with a lower minimum common-mode voltage of -4V but enhanced performance at low sense voltages, making it a better option for applications requiring accurate measurement at near-zero differential inputs.
●INA240-Q1 is an automotive-grade device specifically designed for robust operation in low Vsense conditions, offering superior accuracy where the INA194 excels but may falter.
● INA293-Q1 is a high-precision, automotive current-sense amplifier with a broader common-mode voltage range up to 110V, suitable for 48V and higher-voltage systems.
● INA193AQDBVRQ1 is a pin-to-pin compatible alternative with the same functionality but a different gain of 20 V/V, allowing for scaling of the output voltage relative to the sense current.
