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Product type |
Analog output |
Common-mode voltage (max) (V) |
26 |
Common-mode voltage (min) (V) |
-0.2 |
Input offset (±) (max) (µV) |
55, 135 |
Input offset drift (±) (typ) (µV/°C) |
0.2 |
Features |
Bidirectional, High precision, Low-side Capable |
Rating |
Automotive |
Voltage gain (V/V) |
20, 50, 100, 200 |
CMRR (min) (dB) |
86, 96, 106 |
Bandwidth (kHz) |
105, 150, 210, 350 |
Supply voltage (max) (V) |
5.5 |
Supply voltage (min) (V) |
2.7 |
Iq (max) (mA) |
0.3 |
Number of channels |
1 |
Comparators (#) |
0 |
Gain error (%) |
0.12, 0.17 |
Gain error drift (±) (max) (ppm/°C) |
8 |
Slew rate (V/µs) |
2 |
TI functional safety category |
Functional Safety-Capable |
Operating temperature range (°C) |
-40 to 125 |
SOT-SC70 (DCK)-6-4.2 mm² 2 x 2.1
The INA185-Q1 current sense amplifier is designed for use in cost-sensitive space constrained applications. This device is a bidirectional, current-sense amplifier (also called a current-shunt monitor) that senses the voltage drop across a current-sense resistor at common-mode voltages from –0.2V to 26V, independent of the supply voltage. The INA185-Q1 integrates a matched resistor gain network in four, fixed-gain device options: 20V/V, 50V/V, 100V/V, or 200V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.
The INA185-Q1 operates from a single 2.7V to 5.5V power supply. The device draws a maximum supply current of 260µA and features high slew rate and bandwidth making this device an excellent choice for many power-supply and motor-control applications.
The INA185-Q1 is available in an industry standard SC70 package. The device is specified over the extended operating temperature range of –40°C to 125°C.