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AD8331ARQ

IC VGA SINGLE W/PREAMP 20-QSOP

Product Category: Integrated Circuits (IC Chips)
Mfr. Part #
AD8331ARQ
Manufacturer: Analog Devices
Package: 20-SSOP (0.154", 3.90mm Width)
Lead Free Status /RoHS Status:
Data Sheet: AD8331ARQ Datasheet
Inventory: In Stock

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Mfr. Part #: AD8331ARQ

Specifications
Product Details

Specifications

Manufacturer Analog Devices

Product Category Special Purpose Linear Amplifiers

Series X-AMPÂ®

Type Variable Gain Amplifier

Packaging Tube

Package-Case 20-SSOP (0.154", 3.90mm Width)

Mounting-Type Surface Mount

Applications Signal Processing

Supplier-Device-Package 20-QSOP

Product Details

GENERAL DESCRIPTION

The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an ultralow noise preamplifier (LNA), an X-AMPÂ® VGA with 48 dB of gain range, and a selectable gain postamplifier with adjustable output limiting.
The LNA gain is 19 dB with a single-ended input and differential outputs. Using a single resistor, the LNA input impedance can be adjusted to match a signal source without compromising noise performance.

FEATURES

Ultralow noise preamplifier
Voltage noise = 0.74 nV/âˆšHz
Current noise = 2.5 pA/âˆšHz
3 dB bandwidth
AD8331: 120 MHz
AD8332, AD8334: 100 MHz
Low power
AD8331: 125 mW/channel
AD8332, AD8334: 145 mW/channel
Wide gain range with programmable postamp
âˆ’4.5 dB to +43.5 dB
+7.5 dB to +55.5 dB
Low output-referred noise: 48 nV/âˆšHz typical
Active input impedance matching
Optimized for 10-bit/12-bit ADCs
Selectable output clamping level
Single 5 V supply operation
AD8332 and AD8334 available in lead frame chip scale package

APPLICATIONS

Ultrasound and sonar time-gain controls
High performance AGC systems
I/Q signal processing
High speed, dual ADC drivers

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Mfr. Part #: AD8331ARQ