INA185-Q1 Series

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

Catalog

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

Part	Current - Input Bias	Grade	Voltage - Input Offset	Output Type	Mounting Type	Slew Rate	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Number of Circuits	Current - Supply	Package / Case	Voltage - Supply Span (Max) [Max]	Amplifier Type	Voltage - Supply Span (Min) [Min]	Qualification	-3db Bandwidth
Texas Instruments INA185A1QDCKRQ1	75 µA	Automotive	100 çV	Rail-to-Rail Single Ended	Surface Mount	2 V/µs	-40 °C	125 °C	SC-70-6	1	200 µA	6-TSSOP SC-88 SOT-363	5.5 V	Current Sense	2.7 V	AEC-Q100	350 kHz
Texas Instruments INA185A4QDCKRQ1	75 µA	Automotive	25 çV	Rail-to-Rail Single Ended	Surface Mount	2 V/µs	-40 °C	125 °C	SC-70-6	1	200 µA	6-TSSOP SC-88 SOT-363	5.5 V	Current Sense	2.7 V	AEC-Q100	105 kHz
Texas Instruments INA185A3QDCKRQ1	75 µA	Automotive	25 çV	Rail-to-Rail Single Ended	Surface Mount	2 V/µs	-40 °C	125 °C	SC-70-6	1	200 µA	6-TSSOP SC-88 SOT-363	5.5 V	Current Sense	2.7 V	AEC-Q100	150 kHz

Catalog

AEC-Q100, 26-V, 350-kHz, bi-directional, high-precision 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:±55µV (maximum) at VCM = 0V±100µV (maximum) at VCM = 12V (A4 device)Output slew rate: 2V/µsBidirectional current-sensing capabilityAccuracy:Maximum gain error (A1, A2, A3): ±0.2%Maximum offset drift: 0.5µV/°CGain options:20V/V (A1 devices)50V/V (A2 devices)100V/V (A3 devices)200V/V (A4 devices)Quiescent current: 260µA (maximum)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:±55µV (maximum) at VCM = 0V±100µV (maximum) at VCM = 12V (A4 device)Output slew rate: 2V/µsBidirectional current-sensing capabilityAccuracy:Maximum gain error (A1, A2, A3): ±0.2%Maximum offset drift: 0.5µV/°CGain options:20V/V (A1 devices)50V/V (A2 devices)100V/V (A3 devices)200V/V (A4 devices)Quiescent current: 260µA (maximum)

Description

The INA185-Q1 current sense amplifier is designed for use in cost-sensitive space constrained applications. This device is a bidirectional, current-sense amplifier (also called a current-shunt monitor) that senses the voltage drop across a current-sense resistor at common-mode voltages from –0.2V to 26V, independent of the supply voltage. The INA185-Q1 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. The INA185-Q1 operates from a single 2.7V to 5.5V power supply. The device draws a maximum supply current of 260µA and features high slew rate and bandwidth making this device an excellent choice for many power-supply and motor-control applications. The INA185-Q1 is available in an industry standard SC70 package. The device is specified over the extended operating temperature range of –40°C to 125°C. The INA185-Q1 current sense amplifier is designed for use in cost-sensitive space constrained applications. This device is a bidirectional, current-sense amplifier (also called a current-shunt monitor) that senses the voltage drop across a current-sense resistor at common-mode voltages from –0.2V to 26V, independent of the supply voltage. The INA185-Q1 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. The INA185-Q1 operates from a single 2.7V to 5.5V power supply. The device draws a maximum supply current of 260µA and features high slew rate and bandwidth making this device an excellent choice for many power-supply and motor-control applications. The INA185-Q1 is available in an industry standard SC70 package. The device is specified over the extended operating temperature range of –40°C to 125°C.