TLV2784CPWR

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TLV2784CPWR Application Field and Working Principle

The TLV2784CPWR is a precision Low-Power CMOS Operational Amplifier.

Application Field

The TLV2784CPWR operates between a single 3V to 5.5V supply and features a low-noise, low-offset, low-bias current design suitable for a wide range of analog signal conditioning applications such as transducers, sensors, and motor control systems. The high input impedance and low supply current make the TLV2784CPWR ideal for portable and battery powered applications. The amplifier also provides good AC performance such as low distortion, wide bandwidth, and fast slewing rates.

Working Principle

The TLV2784CPWRis a single-channel low-voltage and low-power CMOS operational amplifier. It has two differential inputs and one single-ended output. The standard gain configuration is non-inverting, and the device has a variable gain option, which allows the gain to be adjusted from 0.1 to 100. The gain is set by a single resistor. The common mode input voltage range extends from 300mV below ground to the supply voltage.

The amplifier exhibits good DC performance and high input impedance. It has a relatively low voltage noise density of 6nt/rtDlpf at a supply voltage of 2.7V and a current consumption of 7µA/amplifier. The amplifier\'s low output voltage offset of 50µV makes it suitable for high accuracy measurements or applications where minimal errors are desired.

In addition, the TLV2784CPWR has very good AC performance. The AC voltage gain is unity with a 3dB bandwidth of 1MHz and slew rate of 3V/µs. The common mode rejection ratio is >85dB over the frequency range of 0.1Hz to 10kHz. The amplifier also offers good power supply rejection ratio (PSRR), with an excellent 82dB at 1kHz.

Conclusion

The TLV2784CPWR is a low-power precision CMOS operational amplifier suitable for a wide range of analog signal conditioning applications. The amplifier has good DC, AC, and PSRR performance and is ideal for portable, battery powered, and transducer applications demanding high accuracy and performance.

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