Model No: INA193AIDBVR
Texas Instruments INA193AIDBVR
Manufacturer: Texas Instruments
SEMICON NO.: INA193AIDBVR
Package: SOT-23-5
Stock: In stock
Description: Current Monitor Regulator High-Side
SEMICON NO.: INA193AIDBVR
Package: SOT-23-5
Stock: In stock
Description: Current Monitor Regulator High-Side
Quantity :
| Mfr | Texas Instruments |
| Device Type | High-Side Current Shunt Monitor |
| Number of Channels | 1 |
| Common-Mode Voltage | -16 V to 80 V |
| Gain (Transconductance) | 20 V/V |
| Bandwidth (-3dB) | 500 kHz |
| Accuracy | ±3% |
| Input Offset Voltage (Vos) | 500 µV (Typ) / 2 mV (Max) |
| Input Bias Current (Ib) | 8 µA (Typ) / 16 µA (Max) |
| Common Mode Rejection Ratio (CMRR) | 94 dB (Typ) / 80 dB (Min) |
| Single Supply Voltage (Vs) | 2.7 V to 18 V |
| Quiescent Current (Iq) | 700 µA (Typ) / 900 µA (Max) |
| Sensing Method | High-Side |
| Operating Temperature | -40°C to +125°C |
| Package | SOT-23-5 |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The INA193AIDBVR is a high-side, bidirectional current-shunt monitor from Texas Instruments, housed in a compact SOT-23-6 package. It operates over a wide common-mode voltage range of -16V to +80V, independent of its 2.7V to 18V power supply, and features a fixed 50 V/V gain, enabling accurate measurement of small differential voltages across a shunt resistor even in the presence of large, high-voltage bus signals.
Key Features and Highlights
● Wide Common-Mode Voltage Range: Supports -16V to +80V, allowing current monitoring on 12V, 24V, 48V industrial and telecom rails without complex level-shifting circuits.
● Bidirectional Current Sensing: Can measure current flowing in both directions through the shunt resistor, making it ideal for applications that monitor both sourcing and sinking currents, such as battery charge/discharge cycles.
● High Accuracy and Fixed Gain: Delivers a maximum offset voltage of 250 µV and a precise fixed 50 V/V gain, minimizing system error and eliminating the need for external gain-setting components.
● Low Quiescent Current: Draws a maximum supply current of only 700 µA, minimizing power consumption and self-heating in the shunt element for high efficiency.
Frequently Asked Questions (FAQ)
Q: Why is high-side current sensing preferred over low-side sensing?
A: High-side sensing places the shunt resistor between the power supply and the load, keeping the load ground connected directly to system ground. This prevents ground disturbance and eliminates ground loop errors, which is critical for accurate measurements in high-current systems.
● Wide Common-Mode Voltage Range: Supports -16V to +80V, allowing current monitoring on 12V, 24V, 48V industrial and telecom rails without complex level-shifting circuits.
● Bidirectional Current Sensing: Can measure current flowing in both directions through the shunt resistor, making it ideal for applications that monitor both sourcing and sinking currents, such as battery charge/discharge cycles.
● High Accuracy and Fixed Gain: Delivers a maximum offset voltage of 250 µV and a precise fixed 50 V/V gain, minimizing system error and eliminating the need for external gain-setting components.
● Low Quiescent Current: Draws a maximum supply current of only 700 µA, minimizing power consumption and self-heating in the shunt element for high efficiency.
Frequently Asked Questions (FAQ)
Q: Why is high-side current sensing preferred over low-side sensing?
A: High-side sensing places the shunt resistor between the power supply and the load, keeping the load ground connected directly to system ground. This prevents ground disturbance and eliminates ground loop errors, which is critical for accurate measurements in high-current systems.
Compatible Alternative current monitor List
● INA193BIDBVR: The higher-precision"B"grade variant of the same device, offering a tighter maximum offset voltage of 100 µV for improved measurement accuracy at low shunt voltages.
● INA282AID: A high-voltage current-shunt monitor from TI with a selectable gain of 50 V/V, featuring a wider -14V to +80V common-mode range and available in an SOIC-8 package.
● MAX4080SASA+: A high-side current-sense amplifier from Analog Devices (Maxim) with a fixed 60 V/V gain, optimized for high-accuracy monitoring in 48V telecom and server power systems.
● AD8217BRMZ: A zero-drift, high-resolution current-shunt monitor from Analog Devices, offering ultra-low offset and drift for precision industrial current measurement applications.
● INA193BIDBVR: The higher-precision"B"grade variant of the same device, offering a tighter maximum offset voltage of 100 µV for improved measurement accuracy at low shunt voltages.
● INA282AID: A high-voltage current-shunt monitor from TI with a selectable gain of 50 V/V, featuring a wider -14V to +80V common-mode range and available in an SOIC-8 package.
● MAX4080SASA+: A high-side current-sense amplifier from Analog Devices (Maxim) with a fixed 60 V/V gain, optimized for high-accuracy monitoring in 48V telecom and server power systems.
● AD8217BRMZ: A zero-drift, high-resolution current-shunt monitor from Analog Devices, offering ultra-low offset and drift for precision industrial current measurement applications.
