PGA970QPHPR Integrated Circuits (ICs)

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The PGA970QPHPR is a family of pin-programmable gain amplifiers which offer high precision performance, low power consumption, and a wide range of gain options for any application. The family includes the PGA960QPHPR, PGA970QPHPR, and PGA980QPHPR.

Overview

The PGA970QPHPR family of precision gain amplifiers provides high precision room temperature gain adjustments for interface applications. The gain control range is from 20 dB to 1000 dB in steps of 1/2 dB and is easily controlled via a single external pin. The family offers low power consumption of only 5 mW and is internally regulated.

The PGA970QPHPR also offers a wide range of gain options which can be tailored to meet the requirements of the application. The gain is independent of supply voltage, making it ideal for low voltage applications. The PGA970QPHPR is optimized for small size but offers high gain accuracy and low distortion.

Application Fields

The PGA970QPHPR is commonly used in sensor and detector interfaces and positioning system interfaces. This includes temperature, pressure, flow, and strain measurements as well as position and application measurements.

The PGA970QPHPR is also used in audio applications such as audio pre-amps, microphone amplifiers, and audio-Instrument control. It is also used in medical system such as ECG monitors and ultrasound imaging systems.

The device is ideal for mobile communications systems such as cellular phones, tablets and other mobile devices. It is also used in aerospace applications such as navigation and control systems.

Working Principles

The PGA970QPHPR is uniquely designed to offer high precision room temperature gain adjustments. The device can be controlled via a single pin to program the gain. The gain is accomplished by means of a resistor ladder which is connected to the programmable gain amplifier via four on-chip resistors.

The PGA970QPHPR is designed to operate from a single +5V supply. The power supply voltage is internally regulated and the device is optimized for low power consumption, providing a maximum of 5 mW. The amplification of the PGA970QPHPR is independent of supply voltage.

The PGA970QPHPR has low distortion and low offset voltage. The gain is programmable in steps of 1/2 dB from 20 dB to 1000 dB. The device also includes an on-board temperature sensor which can be used to monitor the temperature of the device in order to maintain a stable operating performance.

Conclusion

The PGA970QPHPR is a family of precision gain amplifiers designed to provide high precision room temperature gain adjustments for interface applications. The device offers low power consumption, high gain accuracy, low distortion, and an adjustable gain range from 20 dB to 1000 dB. The PGA970QPHPR can be used for sensor and detector interfaces as well as for mobile communications systems, medical systems, and aerospace applications.

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