(China (Mainland))
Product Summary
The AD8331ARQZ is a single channel, ultralow noise linear-in-dB, variable gain amplifier. Optimized for ultrasound systems, It is usable as a low noise variable gain element at frequencies up to 120 MHz. Applications include ultrasound and sonar time-gain controls, high performance automatic gain control (AGC) systems, I/Q signal processing and high speed, dual ADC drivers.
Parametrics
AD8331ARQZ absolute maximum ratings: (1)Voltage Supply Voltage: 5.5 V;(2)Input Voltage: Vs + 200 mV; (3)ENB,ENBL,ENBV,HILO Voltage: Vs + 200 mV;(4)Gain Voltage: 2.5 V;(5)Power Dissipation: 0.78 W;(6)Operating Temperature Range: -40℃ to +85℃;(7)Storage Temperature Range: -65℃ to +150℃;(8)Lead Temperature (Soldering 60 sec): 300℃;(9)RQ Package1: 83℃/W.
Features
AD8331ARQZ features: (1)Ultralow noise preamplifier; (2)Voltage noise = 0.74 nV/√Hz;(3)Current noise = 2.5 pA/√Hz; (4)3 dB bandwidth: 120 MHz；(5)Low power:125mW/channel;(6)Wide gain range with programmable postamp：-4.5 dB to +43.5 dB in LO gain mode, -7.5 dB to 55.5 dB in HI gain mode;(7)Low output-referred noise: 48 nV/√Hz typical; (8)Active input impedance matching; (9)Optimized for 10-bit/12-bit ADCs; (10)Selectable output clamping level; (11)Single 5V supply operation.
Diagrams
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 AD8331ARQZ |
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IC VGA SINGLE W/PREAMP 20-QSOP |
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AD8331ARQZ-R7 |
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IC AMP VAR GAIN 1CHAN 20QSOP |
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AD8331ARQZ-RL |
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IC VGA SINGLE W/PREAMP 20QSOP |
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