0
Product type |
Analog output |
Common-mode voltage (max) (V) |
120 |
Common-mode voltage (min) (V) |
2.7 |
Input offset (±) (max) (µV) |
150 |
Input offset drift (±) (typ) (µV/°C) |
1 |
Features |
High precision |
Rating |
Automotive |
Voltage gain (V/V) |
20, 50, 100, 200, 500 |
CMRR (min) (dB) |
120 |
Bandwidth (kHz) |
800, 850, 900, 1100 |
Supply voltage (max) (V) |
20 |
Supply voltage (min) (V) |
2.7 |
Iq (max) (mA) |
0.6 |
Number of channels |
1 |
Comparators (#) |
0 |
Gain error (%) |
0.5 |
Gain error drift (±) (max) (ppm/°C) |
20 |
Slew rate (V/µs) |
2 |
TI functional safety category |
Functional Safety-Capable |
Operating temperature range (°C) |
-40 to 125 |
SOT-SC70 (DCK)-5-4.2 mm² 2 x 2.1
The INA280-Q1 is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 120 V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0 mm × 2.1 mm. The current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±150 µV (maximum), a small gain error of ±0.5% (maximum), and a high DC CMRR of 140 dB (typical). The INA280-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.1 MHz (at gain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).
The INA280-Q1 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280-Q1 available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset and drift of the INA280-Q1 enables accurate current sensing over the extended operating temperature range of −40 °C to +125 °C.