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AD8333 Datasheet Dual I/Q Demodulator and Phase Shifter

Manufacturer: Analog Devices

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General Description

The AD83331 is a dual phase-shifter and I/Q demodulator that enables coherent summing and phase alignment of multiple analog data channels.

It is the first solid-state device suitable for beamformer circuits, such as those used in high performance medical ultrasound equipment featuring CW Doppler.

The RF inputs interface directly with the outputs of the dual-channel, low noise preamplifiers included in the AD8332.

Overview

Data Sheet DC to 50 MHz, Dual I/Q Demodulator and Phase Shifter.

Key Features

  • Dual integrated I/Q demodulator 16 phase select options on each output (22.5° per step) Quadrature demodulation accuracy Phase accuracy: ±0.1° Amplitude balance: ±0.05 dB Bandwidth 4 × LO: 10 kHz to 200 MHz RF: dc to 50 MHz Baseband: determined by external filtering Output dynamic range: 159 dB/Hz LO drive > 0 dBm (50 Ω); 4 × LO > 1 MHz Supply: ±5 V Power consumption: 190 mW/channel (380 mW total) Power-down.

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