INA241B-Q1 Series

AEC-Q100, -4V to 110V bidirectional high-precision current sense amp with enhanced PWM rejection

Catalog

AEC-Q100, -4V to 110V bidirectional high-precision current sense amp with enhanced PWM rejection

Part	Operating Temperature [Min]	Operating Temperature [Max]	-3db Bandwidth	Qualification	Package / Case	Package / Case [custom]	Package / Case	Voltage - Supply Span (Min) [Min]	Slew Rate	Number of Circuits	Grade	Amplifier Type	Mounting Type	Output Type	Voltage - Input Offset	Voltage - Supply Span (Max) [Max]	Current - Supply	Current - Input Bias	Package / Case [y]	Package / Case [x]	Supplier Device Package
Texas Instruments INA241B3QDGKRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	8-MSOP 8-TSSOP	0.118 in	3 mm	2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA
Texas Instruments INA241B4QDGKRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	8-MSOP 8-TSSOP	0.118 in	3 mm	2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA
Texas Instruments INA241B3QDRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	8-SOIC			2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA	3.9 mm	0.154 in	8-SOIC
Texas Instruments INA241B2QDGKRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	8-MSOP 8-TSSOP	0.118 in	3 mm	2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA
Texas Instruments INA241B1QDGKRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	8-MSOP 8-TSSOP	0.118 in	3 mm	2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA
Texas Instruments INA241B4QDDFRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	SOT-23-8 Thin TSOT-23-8			2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA			TSOT-23-8
Texas Instruments INA241B5QDDFRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	SOT-23-8 Thin TSOT-23-8			2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA			TSOT-23-8
Texas Instruments INA241B1QDDFRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	SOT-23-8 Thin TSOT-23-8			2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA			TSOT-23-8
Texas Instruments INA241B3QDDFRQ1	-40 °C	125 °C	1.1 MHz	AEC-Q100	SOT-23-8 Thin TSOT-23-8			2.7 V	8 V/µs	1	Automotive	Current Sense	Surface Mount	Single-Ended	25 çV	20 V	2.5 mA	35 µA			TSOT-23-8

Catalog

AEC-Q100, -4V to 110V bidirectional high-precision current sense amp with enhanced PWM rejection

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: −40°C to 125°C, TAFunctional Safety-CapableDocumentation available to aid functional safety system designEnhanced PWM rejection optimized for systems subject to switching common-mode voltagesSupports switching frequencies up to 125kHzWide common-mode voltage:Operational voltage: −5V to 110VSurvival voltage: −20V to 120VBidirectional operationHigh small signal bandwidth: 1.1MHz (at all gains)Slew rate: 8V/µsStep response settling time to 1%: 1µsExcellent CMRR166dB DC-CMRR104dB AC-CMRR at 100kHz89dB AC-CMRR at 1MHzAccuracy:Gain error (maximum)Version A: ±0.01%, ±1ppm/°C driftVersion B: ±0.1%, ±5ppm/°C driftOffset voltage (maximum)Version A: ±10µV, ±0.1µV/°C driftVersion B: ±150µV, ±0.5µV/°C driftAvailable gains:INA241A1-Q1 : 10V/VINA241A2-Q1 : 20V/VINA241A3-Q1 : 50V/VINA241A4-Q1 : 100V/VINA241A5-Q1 : 200V/VPackage options: SOT23-8, VSSOP-8, SOIC-8, VSSOP-10AEC-Q100 qualified for automotive applications:Temperature grade 1: −40°C to 125°C, TAFunctional Safety-CapableDocumentation available to aid functional safety system designEnhanced PWM rejection optimized for systems subject to switching common-mode voltagesSupports switching frequencies up to 125kHzWide common-mode voltage:Operational voltage: −5V to 110VSurvival voltage: −20V to 120VBidirectional operationHigh small signal bandwidth: 1.1MHz (at all gains)Slew rate: 8V/µsStep response settling time to 1%: 1µsExcellent CMRR166dB DC-CMRR104dB AC-CMRR at 100kHz89dB AC-CMRR at 1MHzAccuracy:Gain error (maximum)Version A: ±0.01%, ±1ppm/°C driftVersion B: ±0.1%, ±5ppm/°C driftOffset voltage (maximum)Version A: ±10µV, ±0.1µV/°C driftVersion B: ±150µV, ±0.5µV/°C driftAvailable gains:INA241A1-Q1 : 10V/VINA241A2-Q1 : 20V/VINA241A3-Q1 : 50V/VINA241A4-Q1 : 100V/VINA241A5-Q1 : 200V/VPackage options: SOT23-8, VSSOP-8, SOIC-8, VSSOP-10

Description

The INA241x-Q1 is an ultra-precise, bidirectional current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –5V to 110V, independent of the supply voltage. The high-precision current measurement is achieved through a combination of low offset voltage (±10µV, maximum), small gain error (±0.01%, maximum) and a high DC CMRR (typical 166dB). The INA241x-Q1 is designed for high voltage, bidirectional measurements in switching systems that see large common-mode voltage transients at the device inputs. The enhanced PWM rejection circuitry inside the INA241x-Q1 provides minimal signal disturbance at the output due to the common-mode voltage transitions at the input. The INA241x-Q1 operates from a single 2.7V to 20V supply, drawing 2.5mA of supply current. The INA241x-Q1 is available in five gain options: 10V/V, 20V/V, 50V/V, 100V/V, and 200V/V. Multiple gain options allow for optimization between available shunt resistor values and wide output dynamic range requirements. The INA241x-Q1 is specified over operating temperature range of −40°C to 125°C. The INA241x-Q1 is an ultra-precise, bidirectional current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –5V to 110V, independent of the supply voltage. The high-precision current measurement is achieved through a combination of low offset voltage (±10µV, maximum), small gain error (±0.01%, maximum) and a high DC CMRR (typical 166dB). The INA241x-Q1 is designed for high voltage, bidirectional measurements in switching systems that see large common-mode voltage transients at the device inputs. The enhanced PWM rejection circuitry inside the INA241x-Q1 provides minimal signal disturbance at the output due to the common-mode voltage transitions at the input. The INA241x-Q1 operates from a single 2.7V to 20V supply, drawing 2.5mA of supply current. The INA241x-Q1 is available in five gain options: 10V/V, 20V/V, 50V/V, 100V/V, and 200V/V. Multiple gain options allow for optimization between available shunt resistor values and wide output dynamic range requirements. The INA241x-Q1 is specified over operating temperature range of −40°C to 125°C.