THS3201DR

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THS3201DR Application Field and Working Principle

The THS3201DR is a high-performance, low-noise, high-linearity, low-voltage op amp, suitable for ultra-low power applications. It belongs to Texas Instruments’ THS3201 series, which is designed for consumer and professional audio/video applications. This device features low-power, high-drive capability and fast slew-rate; and it has integrated output clamps and ESD protection.

The THS3201DR is a single-channel, bipolar feedback architecture op amp, featuring low-power, low-noise and low-distortion, high-linearity, small compensation capacitance, low-voltage operation, and low maximum turn-on/off time. This device has integrated output clamps to reduce output voltages beyond the supply rails. It also has excellent ESD protection, up to 2000V (Human Body Model), and 2000V (IEC1000-4-2).

Application Field

The THS3201DR is designed for professional and consumer audio/video applications. It can be used for variable-gain amplifiers, track/hold amplifiers, level detectors, and for high-fidelity audio applications in consumer audio products. It also can be utilized as a low-noise amplifier in signal processing, measurement equipment and test instruments.

Working Principle

The THS3201DR is a single-channel, bipolar feedback architecture op amp. It has a high gain-bandwidth product of 300MHz (typical) and a fast slew rate of 1.2V/µs (typical). This device can supply up to 4mA of high-swing output current, and it has a low-power consumption of 1mA for each channel (typical) at VCC = 2.7V. Its feedback capacitance is typically 20pF and it has an offset voltage of 4mV (typical).

The THS3201DR operational amplifier architecture consists of two differential amplifiers and a current-limiting circuit. The differential inputs of the device allow common-mode voltages within the supplies. The current-limiting circuit can protect the device and supply up to 6mA of output current. The gain and bandwidth of the device can be adjusted externally by adjusting the input nodes’ compensation capacitance. It additionally has internal output clamp diodes to reduce output voltage beyond the supplies.

The THS3201DR has excellent ESD protection, up to 2000V (Human Body Model) and 2000V (IEC1000-4-2). It also has high immunity to electrical transients and surge currents. The device has low-power consumption with each channel using 1mA (typical) of current at VCC = 2.7V.

Conclusion

The THS3201DR is a high-performance, low-noise, high-linearity, low-voltage op amp, suitable for ultra-low power applications. It is designed for consumer and professional audio/video applications, and can be used for variable-gain amplifiers, track/hold amplifiers, level detectors, and for high-fidelity audio applications. It has a high gain-bandwidth product of 300MHz (typical) and a fast slew rate of 1.2V/µs (typical). It additionally has excellent ESD protection, high immunity to electrical transients and surge currents, and low-power consumption.

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