INA225-Q1 Series
AEC-Q100, 36V, bi-directional current sense amplifier w/ four pin-selectable gain settings
Manufacturer: Texas Instruments
Catalog
AEC-Q100, 36V, bi-directional current sense amplifier w/ four pin-selectable gain settings
Key Features
• AEC-Q100 qualified:Temperature grade 1: –40 °C to +125 °CHBM ESD classification 2CDM ESD classification C4BFunctional Safety-CapableDocumentation available to aid functional safety system designWide common-mode range: 0 V to 36 VOffset voltage: ±150 µV (maximum, all gains)Offset voltage drift: 0.5 µV/°C (maximum)Gain accuracy, over temperature (maximum):25 V/V, 50 V/V: ±0.15%100 V/V: ±0.2%200 V/V: ±0.3%10-ppm/°C gain driftBandwidth: 250 kHz (gain = 25 V/V)Programmable gains:G1 = 25 V/VG2 = 50 V/VG3 = 100 V/VG4 = 200 V/VQuiescent current: 350 µA (maximum)Package: 8-pin VSSOPAEC-Q100 qualified:Temperature grade 1: –40 °C to +125 °CHBM ESD classification 2CDM ESD classification C4BFunctional Safety-CapableDocumentation available to aid functional safety system designWide common-mode range: 0 V to 36 VOffset voltage: ±150 µV (maximum, all gains)Offset voltage drift: 0.5 µV/°C (maximum)Gain accuracy, over temperature (maximum):25 V/V, 50 V/V: ±0.15%100 V/V: ±0.2%200 V/V: ±0.3%10-ppm/°C gain driftBandwidth: 250 kHz (gain = 25 V/V)Programmable gains:G1 = 25 V/VG2 = 50 V/VG3 = 100 V/VG4 = 200 V/VQuiescent current: 350 µA (maximum)Package: 8-pin VSSOP
Description
AI
The INA225-Q1 is a voltage-output, current-sense amplifier that senses drops across current-sensing resistors at common-mode voltages that vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, current-shunt monitor that allows an external reference to be used to measure current flowing in both directions across a current-sensing resistor.
Four discrete gain levels are selectable using the two gain-select terminals (GS0 and GS1) to program gains of 25 V/V, 50 V/V, 100 V/V, and 200 V/V. The low-offset, zero-drift architecture and precision gain values enable current-sensing with maximum drops across the shunt as low as 10 mV of full-scale, while maintaining very high accuracy measurements over the entire operating temperature range.
The device operates from a single +2.7-V to +36-V power supply, drawing a maximum of 350 µA of supply current. The device is specified over the extended operating temperature range of –40 °C to +125 °C, and is offered in a VSSOP-8 package.
The INA225-Q1 is a voltage-output, current-sense amplifier that senses drops across current-sensing resistors at common-mode voltages that vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, current-shunt monitor that allows an external reference to be used to measure current flowing in both directions across a current-sensing resistor.
Four discrete gain levels are selectable using the two gain-select terminals (GS0 and GS1) to program gains of 25 V/V, 50 V/V, 100 V/V, and 200 V/V. The low-offset, zero-drift architecture and precision gain values enable current-sensing with maximum drops across the shunt as low as 10 mV of full-scale, while maintaining very high accuracy measurements over the entire operating temperature range.
The device operates from a single +2.7-V to +36-V power supply, drawing a maximum of 350 µA of supply current. The device is specified over the extended operating temperature range of –40 °C to +125 °C, and is offered in a VSSOP-8 package.
