AD8332

PRODUCTION

Dual VGA with Ultralow Noise Preamplifier and Programmable R_IN

Data Sheet (Rev. I) Product Selection Table

Part Models: 5
1ku List Price: Starting From $13.96

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Overview

Ultralow noise preamplifier (preamp)
- Voltage noise = 0.74 nV/√Hz
- Current noise = 2.5 pA/√Hz
3 dB bandwidth: 100 MHz
Low power: 145 mW/channel
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
Low output-referred noise: 48 nV/√Hz 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

The AD8332 is a dual channel ultralow noise, linear-in-dB, variable gain amplifier (VGA). 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-AMP^® 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.

The 48 dB gain range of the VGA makes these devices suitable for a variety of applications. Excellent bandwidth uniformity is maintained across the entire range. The gain control interface provides precise linear-in-dB scaling of 50 dB/V for control voltages between 40 mV and 1 V. Factory trim ensures excellent part-to-part and channel-to-channel gain matching. Differential signal paths result in superb second- and third-order distortion performance and low crosstalk.

The operating temperature range is -40°C to +85°C. The AD8332 is available in a 28-lead TSSOP and 32-lead LFCSP packages.

The AD8332 is a dual version of the single AD8331 and quad AD8334.

Applications

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

Part Models: 5
1ku List Price: Starting From $13.96

Documentation

Frequently Asked Question 1

FAQ 09/05/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD8332ACPZ-R7	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8332ACPZ-RL	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8332ARUZ	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8332ARUZ-R7	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8332ARUZ-RL	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 5, 2022 - 21_0271 Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages
		PCN21_0271_Form Material_Report Detailed Change Description Qualification Results Summary
AD8332ACPZ-R7	PRODUCTION
AD8332ACPZ-RL	PRODUCTION
Nov 10, 2014 - 14_0047 Conversion of 5x5mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
		PCN14_0047_Form Material_Report Detailed Change Description Package Outline Drawing Qualification Results Summary
AD8332ACPZ-R7	PRODUCTION
AD8332ACPZ-RL	PRODUCTION
Sep 9, 2009 - 07_0083 Polyimide Change
		Material_Report Material_Report PCN07_0083_Form Qual Report
AD8332ACPZ-R7	PRODUCTION
AD8332ACPZ-RL	PRODUCTION
AD8332ARUZ	PRODUCTION
AD8332ARUZ-R7	PRODUCTION
AD8332ARUZ-RL	PRODUCTION
Mar 23, 2009 - 09_0041 ADWIL Fab XFCB2 Front End Manufacturing Change
		Form Material_Report QUAL_PLAN
AD8332ACPZ-R7	PRODUCTION
AD8332ACPZ-RL	PRODUCTION
AD8332ARUZ	PRODUCTION
AD8332ARUZ-R7	PRODUCTION
AD8332ARUZ-RL	PRODUCTION
Apr 5, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4
		PCN21_0035_Form Material_Report Qualification Results Summary Other
AD8332ARUZ	PRODUCTION
AD8332ARUZ-R7	PRODUCTION
AD8332ARUZ-RL	PRODUCTION
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor
		PCN10_0005_Form Material_Report Reliability Report
AD8332ARUZ	PRODUCTION
AD8332ARUZ-R7	PRODUCTION
AD8332ARUZ-RL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

AD8332 SPICE Macro Models 2

Evaluation Kits

AD8332 Evaluation Board

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Product Details

The board is shipped assembled and tested, and users need only connect the signal and VGAIN sources to a single 5 V power supply. The AD8332-EVALZ is lead free and RoHS compliant.

See the AD8332 data sheet on line for user-supplied optional components, measurement setup or for any other additonal information.

Resources

AD8332/AD9238 Evaluation Tools
2/2/2005

AD8332-EVALZ: Dual VGA, Ultralow Noise Preamplifier, and Programmable RIN Evaluation Board Data Sheet (Rev.D)
11/12/2004

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AD8332

Overview

Documentation

Data Sheet 1

Application Note 2

Technical Articles 1

Evaluation Design File 2

Frequently Asked Question 1

Product Selection Guide 1

Tutorial 1

Analog Dialogue 1