THS4221DRG4

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The THS4221DRG4 is a high-performance, ultra-low-noise, CMOS 4-channel, differential input, LOG tracking, instrumentation amplifier designed to amplify accurate, low-noise differential signals in applications where high common-mode rejection is required. It belongs to the category of linear amplifiers, instrumentation OP amps, and buffer amps.

The device is able to provide a powerful, user-selectable gain set to a wide range of values, as low as 0.5 V/V and as high as 10 V/V. This gain also has a temperature tracking characteristic, allowing it to provide a stable output across different temperatures. Additionally, the device also features a high input impedance of 10 GΩ, ensuring that the amplifier won\'t affect the signal source. The THS4221DRG4 is suitable for a wide range of applications, including isolating data acquisition systems from noisy environments and shielding sensitive measuring systems from ground faults.

The THS4221DRG4 contains four integrated CMOS amplifiers that provide the required gain. Two of the amplifiers form the differential input pair, while the other two are connected as a non-inverting amplifier. The input and output impedance of the device are 10 GΩ and 6.3 kΩ, respectively. The full-scale output voltage swing is ±2 V. The output is matched to the supply and the CMOS input stage ensures ultra-low-noise and low-bias current. The device also features low input bias current, allowing it to provide high common-mode rejection, making it ideal for applications where ground loops need to be avoided.

The THS4221DRG4 has a wide bandwidth of 500 kHz and an extremely low distortion of -110 dB, making it ideal for application where very low distortion is required. The device also features a temperature compensation circuit, allowing it to maintain a low output offset voltage at a wide range of temperature. The THS4221DRG4 is available in a 16-lead single-ended TSSOP package, making it suitable for applications where space is limited. The device is also fully protected against over-temperature, over-voltage, and undervoltage conditions, ensuring that it is reliable and robust.

In conclusion, the THS4221DRG4 is an ultralow-noise and high-performance CMOS differential input LOG tracking instrumentation amplifier capable of providing up to 10 V/V gains across a wide temperature range. It is suitable for a wide range of applications, including isolating data acquisition systems from noisy environments and shielding sensitive measuring systems from ground faults. Furthermore, the device features a wide bandwidth of 500 kHz and an extremely low distortion of -110 dB, making it ideal for applications where very low distortion is required.

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