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INA296A

INA296A Series

-5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs ultraprecise current sense amplifier

Manufacturer: Texas Instruments

Catalog

-5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs ultraprecise current sense amplifier

Key Features

Wide 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 CMRR: 166dBAccuracy: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:INA296A1, INA296B1 : 10V/VINA296A2, INA296B2 : 20V/VINA296A3, INA296B3 : 50V/VINA296A4, INA296B4 : 100V/VINA296A5, INA296B5 : 200V/VPackage options: SOT23-8, VSSOP-8, SOIC-8,Wide 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 CMRR: 166dBAccuracy: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:INA296A1, INA296B1 : 10V/VINA296A2, INA296B2 : 20V/VINA296A3, INA296B3 : 50V/VINA296A4, INA296B4 : 100V/VINA296A5, INA296B5 : 200V/VPackage options: SOT23-8, VSSOP-8, SOIC-8,

Description

AI
The INA296x 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 INA296x is not only designed for high voltage, bidirectional DC current measurements, but also for high-speed applications (such as transient detection and fast overcurrent protection) with a high signal bandwidth of 1.1MHz and fast settling time. The INA296x operates from a single 2.7V to 20V supply, drawing 2.5mA of supply current. The INA296x 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 INA296x is specified over operating temperature range of −40°C to 125°C. The INA296x 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 INA296x is not only designed for high voltage, bidirectional DC current measurements, but also for high-speed applications (such as transient detection and fast overcurrent protection) with a high signal bandwidth of 1.1MHz and fast settling time. The INA296x operates from a single 2.7V to 20V supply, drawing 2.5mA of supply current. The INA296x 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 INA296x is specified over operating temperature range of −40°C to 125°C.