AD737KRZ-RL Integrated Circuits (ICs)

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AD737KRZ-RL is a Programmable Gain Amplifier with both RMS-to-DC and DC-to-RMS conversion capability. The device is designed to perform precision signal conditioning, linearization, and gain augmentation of cable and wireless signals. It features a dual-output, differential-input RMS operation with 24-bit resolution, 3 dB bandwidth of 20 kHz, and a single-sided temperature coefficient of -15 dBc. The device also supports DC-to-RMS conversion with 24-bit resolution and a maximum temperature coefficient of -20 dBc.

The AD737KRZ-RL is in a Pin-Grid Array (PGA) package and requires dual channels. The channel input can be either high level or low level, allowing for some flexibility in signal conditioning. For optimal performance, the device must be calibrated. Furthermore, the on-chip gain can be adjusted via the programmable gain amplifier, allowing for a wide range of input and output voltages. The device\'s output is 4.0-4.2V (typical).

AD737KRZ-RL is a perfect choice for applications such as line-of-sight transmission systems, cable and wireless communications, RF power combining and RF amplifiers, and any other application that requires RMS-to-DC conversion and/or DC-to-RMS conversion. For example, the device can be used to linearize forward link signals in LTE-Advanced Mobile Communications, enabling up to three times of wireless coverage enhancement. In addition, the device can also be used in satellite and radio communication systems, providing optimum signal-to-noise performance.

AD737KRZ-RL works on the principle of feedback control. The device utilizes the on-chip programmable gain amplifier to convert the differential input signal into a single-ended output signal, which is then fed back to the input to create an analog loop. The loop parameters are adjustable, allowing for gain adjustment and linearization. The resulting output signal is then converted to a digital form, ready for further processing. The operation of the device is based on the RMPCA algorithm and the IMMSBT technique to get the RMS-to-DC or DC-to-RMS conversion.

In conclusion, the AD737KRZ-RL is an ideal choice for achieving maximum signal-to-noise performance in RF and optical transmission applications. The device provides high resolution 24-bit differential-input RMS-to-DC conversion, plus a low temperature coefficient of -15 dBc, making it particularly suitable for applications requiring precision signal conditioning. Furthermore, the device can also be used in DC-to-RMS conversion applications, providing an output voltage of 4.0-4.2V (typical).

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