Packaging information
| Package | Pins SOT-23 (DBV) | 6 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the INA181-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ TA ≤ 125°C
- HBM ESD classification level 2
- CDM ESD classification level C6
- Functional Safety-Capable
- Common-mode range (VCM): –0.2V to 26V
- High bandwidth: 350kHz (A1 devices)
- Offset voltage:
- ±150µV (maximum) at VCM = 0V
- ±500µV (maximum) at VCM = 12V
- Output slew rate: 2V/µs
- Bidirectional current-sensing capability
- Accuracy:
- ±1% gain error (maximum)
- 1µV/°C offset drift (maximum)
- Gain options:
- 20V/V (A1 devices)
- 50V/V (A2 devices)
- 100V/V (A3 devices)
- 200V/V (A4 devices)
- Quiescent current: 260µA maximum (INA181-Q1)
Description for the INA181-Q1
The INA181-Q1, INA2181-Q1, and INA4181-Q1 (INAx181-Q1) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of bidirectional, current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2V to 26V, independent of the supply voltage. The INAx181-Q1 family 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.
These devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA181-Q1 draws a maximum supply current of 260µA; whereas, the dual-channel INA2181-Q1 draws a maximum supply current of 500µA, and the quad-channel INA4181-Q1 draws a maximum supply current of 900µA.
The INA181-Q1 is available in both the 6-pin, SOT-23 and SC70 packages. The INA2181-Q1 is available in a 10-pin, VSSOP package. The INA4181-Q1 is available in a 20-pin, TSSOP package. All device options are specified over the extended operating temperature range of –40°C to 125°C.