0
ACTIVE
Product type |
Analog output |
Common-mode voltage (max) (V) |
40 |
Common-mode voltage (min) (V) |
-0.2 |
Input offset (±) (max) (µV) |
50 |
Input offset drift (±) (typ) (µV/°C) |
0.05 |
Features |
Bidirectional, High precision, Low-side Capable |
Rating |
Automotive |
Voltage gain (V/V) |
25, 50, 100, 200, 500 |
CMRR (min) (dB) |
120 |
Bandwidth (kHz) |
27, 33, 35, 37, 45 |
Supply voltage (max) (V) |
5.5 |
Supply voltage (min) (V) |
1.7 |
Iq (max) (mA) |
0.09 |
Number of channels |
1 |
Comparators (#) |
0 |
Gain error (%) |
1 |
Gain error drift (±) (max) (ppm/°C) |
10 |
Slew rate (V/µs) |
0.3 |
TI functional safety category |
Functional Safety-Capable |
Operating temperature range (°C) |
-40 to 125 |
SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8
The INA186-Q1 is an automotive, low-power, voltage-output, current-sense amplifier (also called a current-shunt monitor). This device is commonly used for monitoring systems directly connected to an automotive 12-V battery. The INA186-Q1 can sense drops across shunts at common-mode voltages from –0.2 V to +40 V, independent of the supply voltage. In addition, the input pins have an absolute maximum voltage of 42V.
The low input bias current of the INA186-Q1 permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements.
The INA186-Q1 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 90 µA of supply current . Five fixed gain options are available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500 V/V. The device is specified over the operating temperature range of –40°C to +125°C, and offered in SC70, SOT-23 (5), and SOT-23 (8) packages. The SC70 and SOT-23 (DDF) packages supports bidirectional current measurement, whereas the SOT-23 (DBV) only supports current measurement in one direction.