INA181-Q1 Series

AEC-Q100, 26V, bi-directional, 350kHz current sense amplifier

Catalog

AEC-Q100, 26V, bi-directional, 350kHz current sense amplifier

Part	-3db Bandwidth	Voltage - Input Offset	Current - Supply	Slew Rate	Qualification	Mounting Type	Supplier Device Package	Number of Circuits	Output Type	Voltage - Supply Span (Min) [Min]	Current - Input Bias	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Current - Output / Channel	Amplifier Type	Package / Case	Voltage - Supply Span (Max) [Max]
Texas Instruments INA181A4QDCKRQ1	105 kHz	100 çV	195 µA	2 V/µs	AEC-Q100	Surface Mount	SC-70-6	1	Rail-to-Rail Single Ended	2.7 V	75 µA	-40 °C	125 °C	Automotive	8 mA	Current Sense	6-TSSOP SC-88 SOT-363	5.5 V
Texas Instruments INA181A1QDCKRQ1	350 kHz	100 çV	195 µA	2 V/µs	AEC-Q100	Surface Mount	SC-70-6	1	Rail-to-Rail Single Ended	2.7 V	75 µA	-40 °C	125 °C	Automotive	8 mA	Current Sense	6-TSSOP SC-88 SOT-363	5.5 V
Texas Instruments INA181A2QDCKRQ1	210 kHz	100 çV	195 µA	2 V/µs	AEC-Q100	Surface Mount	SC-70-6	1	Rail-to-Rail Single Ended	2.7 V	75 µA	-40 °C	125 °C	Automotive	8 mA	Current Sense	6-TSSOP SC-88 SOT-363	5.5 V

Catalog

AEC-Q100, 26V, bi-directional, 350kHz current sense amplifier

Key Features

• AEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C ≤ TA ≤ 125°CHBM ESD classification level 2CDM ESD classification level C6Functional Safety-CapableDocumentation available to aid functional safety system designCommon-mode range (VCM): –0.2V to 26VHigh bandwidth: 350kHz (A1 devices)Offset voltage:±150µV (maximum) at VCM = 0V±500µV (maximum) at VCM = 12VOutput slew rate: 2V/µsBidirectional current-sensing capabilityAccuracy:±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)AEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C ≤ TA ≤ 125°CHBM ESD classification level 2CDM ESD classification level C6Functional Safety-CapableDocumentation available to aid functional safety system designCommon-mode range (VCM): –0.2V to 26VHigh bandwidth: 350kHz (A1 devices)Offset voltage:±150µV (maximum) at VCM = 0V±500µV (maximum) at VCM = 12VOutput slew rate: 2V/µsBidirectional current-sensing capabilityAccuracy:±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

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. 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.