INA240A2QPWRQ1

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The INA240A2QPWRQ1 device is a precision instrumentation amplifier with the ability to operate from a VDD single power supply and accept input signals from differential to common-mode voltage ranges of ±12 V. It is part of the Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps category and is specifically designed for low-voltage, battery-powered applications such as cell phones, portable instrumentation systems, PCMCIA cards, and media players. It has a high output voltage swing at 1 mA drain current and a high input impedance. The device is available in a tiny 4-pin SOP package and is characterized to -40 ±C.

The INA240A2QPWRQ1 provides a very accurate and wide-range performance as compared to usual instrumentation amplifiers. It contains two high precision, low power op amps, a voltage reference and an internal gain setting resistors divider. The device has a wide input voltage range of ±12V, a high differential gain up to 500V/V and a low offset of 15μV maximum. The device also offers excellent load stability with a maximum input offset voltage drift of 25μV/ºC.

The INA240A2QPWRQ1 can be used in various applications that require input signals to be isolated from each other and/or to be amplified. These applications include electrochemical measurements such as pH, oxygen, and carbon dioxide sensing, resistor measurements, temperature measurements, light sensors, and microphone amplifiers. It can also be used to amplify low level signals from force sensitive resistance (FSR) and other electrodes.

The working principle of the INA240A2QPWRQ1 is based on the basic operational amplifier. It consists of two differential inputs that are connected to two operational amplifiers, an external or internal reference, and two gain setting resistors. The differential inputs are connected to the two input terminals and the two op-amp outputs are connected to the output terminals. The voltage reference is used to set the gain resistance and the gain setting resistors are used to select the desired gain. The device also has a common-mode bias current that compensates for the offset voltage of the two op-amps.

The INA240A2QPWRQ1 is a highly integrated and versatile device for the purpose of high precision, low power instrumentation. It has a wide input voltage range and a high gain accuracy with a low offset voltage. The device is designed to operate from a single power supply, making it ideal for battery-powered applications. It can be used in various applications that require wide-range precision and low power. It is also smaller, lighter, and lower cost than most other Analog Devices instrumentation amplifiers.

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