AD8333ACPZ Semiconductors - ICs by Analog Devices

I/Q DEMODULATOR DUAL LFCSP-32

Status: Unknown
Series: -
RoHS: Unknown
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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. A divide-by-4 circuit generates the internal 0° and 90° phases of the local oscillator (LO) that drive the mixers of a pair of matched I/Q demodulators. The AD8333 can be applied as a major element in analog beamformer circuits in medical ultrasound equipment. The AD8333 features an asynchronous reset pin. When used in arrays, the reset pin sets all the LO dividers in the same state. Sixteen discrete phase rotations in 22.5° increments can be selected independently for each channel. For example, if Channel 1 is used as a reference and the RF signal applied to Channel 2 has an I/Q phase lead of 45°, Channel 2 can be phase aligned with Channel 1 by choosing the correct code.

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Specifications

Frequency Min 0Hz
Frequency Max 50MHz
Supply Voltage Min 4.5V
Supply Voltage Max 6V
RF IC Case Style LFCSP
No. of Pins 32Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (07-Jul-2017)
Base Number 8333
Frequency Range 0Hz to 50MHz
Local Oscillator Frequency Range 10Hz to 200MHz
Operating Temperature Range -40°C to +85°C
RF Type Quadrature
Supply Voltage Range ± 4.5V to ± 6V
Termination Type Surface Mount Device


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