
INA301-Q1 Series
AEC-Q100, 36V, 550kHz, 4V/µs, high-precision current sense amplifier w/ comparator
Manufacturer: Texas Instruments
Catalog
AEC-Q100, 36V, 550kHz, 4V/µs, high-precision current sense amplifier w/ comparator
Key Features
• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C6Functional Safety-CapableDocumentation available to aid functional safety system designWide common-mode input range: 0 V to 36 VDual output: amplifier and comparator outputHigh accuracy amplifier:Offset voltage: 35 µV (maximum)Offset voltage drift: 0.5 µV/°C (maximum)Gain error: 0.1% (maximum)Gain error drift: 10 ppm/°CAvailable amplifier gains:INA301A1-Q1: 20 V/VINA301A2-Q1: 50 V/VINA301A3-Q1: 100 V/VProgrammable alert threshold set through a single resistorTotal alert response time: 1 µsOpen-drain output with both transparent and latching modesPackage: VSSOP-8Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C6Functional Safety-CapableDocumentation available to aid functional safety system designWide common-mode input range: 0 V to 36 VDual output: amplifier and comparator outputHigh accuracy amplifier:Offset voltage: 35 µV (maximum)Offset voltage drift: 0.5 µV/°C (maximum)Gain error: 0.1% (maximum)Gain error drift: 10 ppm/°CAvailable amplifier gains:INA301A1-Q1: 20 V/VINA301A2-Q1: 50 V/VINA301A3-Q1: 100 V/VProgrammable alert threshold set through a single resistorTotal alert response time: 1 µsOpen-drain output with both transparent and latching modesPackage: VSSOP-8
Description
AI
The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.
The open-drain alert output can be configured to operate in either a transparent mode, where the output status follows the input state, or in a latched mode, where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.
This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range of –40°C to +125°C, and is available in an 8-pin VSSOP package.
The INA301-Q1 includes both a high common-mode, current-sensing amplifier and a high-speed comparator configured to provide overcurrent protection by measuring the voltage developed across a current-sensing or current-shunt resistor and comparing that voltage to a defined threshold limit. This device features an adjustable limit-threshold range that is set using a single external limit-setting resistor. This current-shunt monitor measures differential voltage signals on common-mode voltages that can vary from 0 V up to 36 V, independent of the supply voltage.
The open-drain alert output can be configured to operate in either a transparent mode, where the output status follows the input state, or in a latched mode, where the alert output is cleared when the latch is reset. The device alert response time is under 1 µs, allowing for quick detection of overcurrent events.
This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 700 µA. The device is specified over the extended operating temperature range of –40°C to +125°C, and is available in an 8-pin VSSOP package.