INA181A3IDBVR Current Sense Amplifier IC 1 Circuit Rail-To-Rail SOT-23-6 Integrated Circuits
INA181A3IDBVR
,INA181A3IDBVR Current Sense Amplifier IC
,Current Sense Amplifier Integrated Circuits
INA181A3IDBVR Current Sense Amplifier 1 Circuit Rail-to-Rail SOT-23-6
| Texas Instruments | |
| Product Category: | Current Sense Amplifiers |
| RoHS: | Details |
| INA181 | |
| 1 Channel | |
| 150 kHz | |
| - 200 mV to 26 V | |
| 100 dB | |
| 75 uA | |
| 100 uV | |
| 5.5 V | |
| 2.7 V | |
| 260 uA | |
| 0.1 % | |
| - 40 C | |
| + 125 C | |
| SMD/SMT | |
| SOT-23-6 | |
| Reel | |
| Cut Tape | |
| MouseReel | |
| Amplifier Type: | Current Sense Amplifier |
| Brand: | Texas Instruments |
| Development Kit: | INA180-181EVM |
| en - Input Voltage Noise Density: | 40 nV/sqrt Hz |
| Features: | Bi-directional, Low-side Capable |
| Gain V/V: | 100 V/V |
| Ios - Input Offset Current: | 50 nA |
| Output Current per Channel: | 8 mA |
| Product: | Current Sense Amplifiers |
| Product Type: | Current Sense Amplifiers |
| Shutdown: | Shutdown |
| SR - Slew Rate: | 2 V/us |
| Subcategory: | Amplifier ICs |
| Unit Weight: | 0.000656 oz |
Description
The INA181, INA2181, and INA4181 (INAx181)current sense amplifiers are designed for costoptimized
applications. These devices are part of afamily of bidirectional, current-sense amplifiers (alsocalled
current-shunt monitors) that sense voltagedrops across current-sense resistors at commonmode voltages
from –0.2 V to +26 V, independentof the supply voltage. The INAx181 family integratesa matched resistor
gain network in four, fixed-gaindevice options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V.This matched gain
resistor network minimizes gainerror and reduces the temperature drift.
These devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA181 drawsa
maximum supply current of 260 µA; whereas,the dual-channel INA2181 draws a maximum supplycurrent
of 500 µA, and the quad-channel INA4181draws a maximum supply current of 900 µA.
The INA181 is available in both the 6-pin, SOT-23and SC70 packages. The INA2181 is available in10-pin,
VSSOP and WSON packages. The INA4181is available in a 20-pin, TSSOP package. All deviceoptions
are specified over the extended operatingtemperature range of –40°C to +125°C.
Features
• Common-mode range (VCM): –0.2 V to +26 V
• High bandwidth: 350 kHz (A1 devices)
• Offset voltage:
– ±150 µV (maximum) at VCM = 0 V
– ±500 µV (maximum) at VCM = 12 V
• Output slew rate: 2 V/µs
• Bidirectional current-sensing capability
• Accuracy:
– ±1% gain error (maximum)
– 1-µV/°C offset drift (maximum)
• Gain options:– 20 V/V (A1 devices)
– 50 V/V (A2 devices)– 100 V/V (A3 devices)
– 200 V/V (A4 devices)
• Quiescent current: 260 µA maximum (INA181)
Applications
• Motor control
• Battery monitors and balancers
• Power management
• Lighting control
• Solar inverters
