0
ACTIVE
Product type |
Analog output |
Common-mode voltage (max) (V) |
36 |
Common-mode voltage (min) (V) |
0 |
Input offset (±) (max) (µV) |
150 |
Input offset drift (±) (typ) (µV/°C) |
0.1 |
Features |
Bidirectional, Low-side Capable, Programmable Gain |
Rating |
Automotive |
Voltage gain (V/V) |
25, 50, 100, 200 |
CMRR (min) (dB) |
95 |
Bandwidth (kHz) |
200, 70, 125, 250 |
Supply voltage (max) (V) |
36 |
Supply voltage (min) (V) |
2.7 |
Iq (max) (mA) |
0.35 |
Number of channels |
1 |
Comparators (#) |
0 |
Gain error (%) |
0.05, 0.1, 0.15 |
Gain error drift (±) (max) (ppm/°C) |
10 |
Slew rate (V/µs) |
0.4 |
TI functional safety category |
Functional Safety-Capable |
Operating temperature range (°C) |
-40 to 125 |
VSSOP (DGK)-8-14.7 mm² 3 x 4.9
The INA225-Q1 is a voltage-output, current-sense amplifier that senses drops across current-sensing resistors at common-mode voltages that vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, current-shunt monitor that allows an external reference to be used to measure current flowing in both directions across a current-sensing resistor.
Four discrete gain levels are selectable using the two gain-select terminals (GS0 and GS1) to program gains of 25 V/V, 50 V/V, 100 V/V, and 200 V/V. The low-offset, zero-drift architecture and precision gain values enable current-sensing with maximum drops across the shunt as low as 10 mV of full-scale, while maintaining very high accuracy measurements over the entire operating temperature range.
The device operates from a single +2.7-V to +36-V power supply, drawing a maximum of 350 µA of supply current. The device is specified over the extended operating temperature range of –40 °C to +125 °C, and is offered in a VSSOP-8 package.