THS4221DGK

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The THS4221DGK is a precision, high-performance, low offset and low power quad JFET input operational amplifier from Texas Instruments. It is part of the legacy THS4221 series of linear, instrumentation, and operational amplifiers, buffers, and op-amps.

Application Field: The THS4221DGK is a high-performance amplifier designed for instrumentation, industrial and commercial applications. It has excellent DC and AC performance, high accuracy, low offset, low power consumption, and low distortion. Its precision low-noise gain stages make it ideal for a wide range of industrial and commercial applications such as temperature measurement, pressure measurement, strain measurement, and signal conditioning.

Working Principle:The THS4221DGK amplifier operates on the principle of a differential input. It amplifies the difference between two signals. This differential amplifier has two output pins, one for the amplified difference between the two input signals, and the other for the complement of the amplified difference. The amplified difference is the amplified output, which is the voltage present at the output pins after amplifying the difference between the two input signals.

The THS4221DGK amplifier utilizes a JFET input stage which provides high input impedance and low input bias current. The amplifier also features a wide differential common mode range, low offset voltage, and low output voltage swing. It has a wide supply voltage range from 3 to 12 volts, making it suitable for a wide range of applications. The operating temperature range of the THS4221DGK is from -40°C to 85°C, with a storage temperature range from -65°C to 150°C.

The THS4221DGK also features an adjustable gain, which can be adjusted by selecting the appropriate pin voltage combination. The amplifier provides an adjustable gain from -2V/V to +2V/V, depending on the selected pin voltage, which ensures maximum accuracy and flexibility. The amplifier has a selectable gain bandwidth frequency which can operate in the frequency range from 10 Hz to 5 MHz, depending on the gain setting.

The THS4221DGK has a high slew rate which makes it suitable for driving large loads. It also features high gain-bandwidth product, low output noise, and low input bias current, enabling it to provide reliable and accurate performance. The THS4221DGK is an ideal choice for a variety of applications, including temperature measurement, pressure measurement, strain measurement, and signal conditioning. systems.

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