INA180A1IDBVR

INA180A1IDBVR is the tape-and-reel SOT-23-5 ordering code for the Texas Instruments INA180 current-sense amplifier, listed by TI as Active / Production in the datasheet ordering appendix (SBOS741H). The A1 code is the 20 V/V gain variant, and every figure here is from the A1 column of the datasheet: bandwidth of 350 kHz typical at that gain with a 10 pF load, internal gain resistance of 25 kΩ, gain error of ±0.1 % typical and ±1 % maximum, input offset of ±25 µV typical and ±150 µV maximum at zero differential input (VIN+ = 0 V, 25 °C, 5 V supply), widening to ±100 µV typical and ±500 µV maximum at a 12 V input - the tighter pair does not hold across the whole common-mode window - common-mode rejection of 84 dB minimum and 100 dB typical, slew rate of 2 V/µs 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), over a 2.7 V to 5.5 V supply and a -0.2 V to +26 V common-mode range. The selection point is the fastest member of the family: the 20 V/V gain keeps the widest bandwidth of the four INA180 gain options, which suits fast current-loop monitoring in motor drives and power-rail protection where the higher-gain variants would roll off too early. Selection advice: the four gain letters (this A1 at 20 V/V, A2 at 50 V/V, A3 at 100 V/V and A4 at 200 V/V) share 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 A1 gain so full-scale current lands inside the output swing. Parameters verified against the TI INA180 datasheet SBOS741H, Table 9-1 gain variants and the A1 electrical column.