INA381-Q1 AEC-Q100, 26-V, 350-kHz Current Sense Amplifier With Integrated Overcurrent Comparator

1 Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
Functional Safety-Capable
- Documentation available to aid functional safety system design
Common-mode input range: –0.2 V to +26 V
High accuracy amplifier:
- Offset voltage at T_A = 25°C
  - 500 µV (maximum) at V_CM = 12 V
  - 150 µV (maximum) at V_CM = 0 V
- Offset voltage drift: 1 µV/°C (maximum)
- Gain error: 1% (maximum) at 25°C
- Gain error drift: 20 ppm/°C (maximum)
Available amplifier gains:
- INA381A1-Q1: 20 V/V
- INA381A2-Q1: 50 V/V
- INA381A3-Q1: 100 V/V
- INA381A4-Q1: 200 V/V
Open-drain comparator:
- Hysteresis: 50 mV
- Propagation delay: 400 ns (typical)
- Alert threshold set through external reference voltage
- Supports transparent and latching modes
Package: VSSOP-10