INA180A2IDBVR

INA180A2IDBVR is the tape-and-reel SOT-23-5 ordering code for the Texas Instruments INA180 current-sense amplifier, listed by TI as ACTIVE. The A2 code is the 50 V/V gain variant, and every figure here is from the A2 column of the datasheet: gain error of ±0.1 % typical and ±1 % maximum, bandwidth of 210 kHz typical at that gain, input offset of ±25 µV typical and ±150 µV maximum at zero differential input (VIN+ = 0 V, 25 °C, 5 V supply) - the same table gives ±100 µV typical and ±500 µV maximum at a 12 V input, so the tighter pair must not be read across the whole common-mode window - common-mode rejection of 84 dB minimum and 100 dB typical, and quiescent current of 197 µA typical and 260 µA maximum at 25 °C (300 µA maximum over the full -40 °C to +125 °C range). The selection point is shunt-based current measurement without a precision amplifier design effort: the fixed 50 V/V gain turns millivolt shunt drops into a clean ADC-range signal for motor drives, battery management and power-rail monitoring. Selection advice: the INA180 family offers four gain options (A1 at 20 V/V, this A2 at 50 V/V, A3 at 100 V/V and A4 at 200 V/V) sharing one pinout, so the gain letter is the critical match point - a wrong-gain substitute reads back a proportionally wrong current, and the error is silent. Size the shunt for the A2 gain so full-scale current lands inside the output swing. Parameters verified against the TI INA180 datasheet, Table 9-1 gain variants and the A2 electrical column.