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ADA4932-2:  Low Power Differential ADC Driver

Product Details


The ADA4932 family is the next generation AD8132 with higher performance, and lower noise and power consumption. It is an ideal choice for driving high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. The output common-mode voltage is user adjustable by means of an internal common-mode feedback loop, allowing the ADA4932 family output to match the input of the ADC. The internal feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.

With the ADA4932 family, differential gain configurations are easily realized with a simple external four-resistor feedback network that determines the closed-loop gain of the amplifier.

The ADA4932 family is fabricated using the Analog Devices, Inc., proprietary silicon-germanium (SiGe) complementary bipolar process, enabling it to achieve low levels of distortion and noise at low power consumption. The low offset and excellent dynamic performance of the ADA4932 family make it well suited for a wide variety of data acquisition and signal processing applications.

The ADA4932-1 is available in a 16-lead LFCSP and the ADA4932-2 is available in a 24-lead LFCSP. The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4932 family is specified to operate over the −40°C to +105°C temperature range; both operate on supplies between +3 V and ±5 V.

Applications

  • ADC drivers
  • Single-ended-to-differential converters
  • IF and baseband gain blocks
  • Differential buffers
  • Line drivers

FEATURES and BENEFITS

  • Chinese data sheet available
  • High performance at low power
  • High speed
    −3 dB bandwidth of 560 MHz, G = 1
    0.1 dB gain flatness to 300 MHz
    Slew rate: 2800 V/μs, 25% to 75%
    Fast 0.1% settling time of 9 ns
  • Low power: 9.6 mA per amplifier
  • Low harmonic distortion
    100 dB SFDR @ 10 MHz
    90 dB SFDR @ 20 MHz
  • Low input voltage noise: 3.6 nV/√Hz
  • ±0.5 mV typical input offset voltage
  • Externally adjustable gain
  • Can be used with gains less than 1
  • Differential-to-differential or single-ended-to-differential operation
  • Adjustable output common-mode voltage
  • See data sheet for additional Features

Pin Configuration for ADA4932-2

Documentation

Title Content Type File Type
ADA4932-1/ADA4932-2: Low Power Differential ADC Driver Data Sheet (Rev D, 04/2014) (pdf, 542 kB) Data Sheets PDF
AN-1026: High Speed Differential ADC Driver Design Considerations  (pdf, 355 kB) Application Notes PDF
AN-0992: Active Filter Evaluation Board for Differential Amplifiers  (pdf, 85 kB) Application Notes PDF
AN-282: Fundamentals of Sampled Data Systems  (pdf, 2131 kB) Application Notes PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
AN-584: Using the AD813X Differential Amplifier  (pdf, 174 kB)
The AD813x differs from conventional op amps by the external presence of an additional input and output. The additional input, VOGM, controls the output common mode voltage.
Application Notes PDF
AN-589: Ways to Optimize the Performance of a Difference Amplifier  (pdf, 115 kB)
This Application Note presents several ways to build and optimize the performance of a discrete difference amplifier. It also recommends amplifiers that will make the overall solution cost/performance competitive with monolithic instrument amplifiers.
Application Notes PDF
MT-218: Multiple Feedback Band-Pass Design Example  (pdf, 0) Tutorials PDF
MT-076: Differential Driver Analysis  (pdf, 95 kB) Tutorials PDF
MT-075: Differential Drivers for High Speed ADCs Overview  (pdf, 183 kB) Tutorials PDF
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
Webcasts WEBCAST
UG-018: Evaluation Board for Dual High Speed Differential Amplifiers  (pdf, 314 kB) User Guides PDF
Designing 1-ppm DAC Accuracy into Instrumentation Applications
Understand the challenges of achieving this level of converter performance
(Planet Analog, 3/2010)
  • Part 1
    This article looks at a 1-ppm DAC and associated support circuitry, error sources, and performance measures.
  • Part 2
    This article discusses 1-ppm circuit complexities including noise, temperature drift, thermoelectric voltages, physical stress, long-term stability, circuit construction and layout, and voltage references.
Technical Articles HTML
"Rules of the Road" for High-Speed Differential ADC Drivers
(Analog Dialogue, Vol. 43, No. 5, 2009)
Analog Dialogue HTML
SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
Product Selection Guide PDF
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
ADC Drivers Overview HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADI DiffAmpCalc™
ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.
ADIsim Design/Simulation Tools HTML
ADA4932 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADA4932-2 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4932-2YCPZ-R2 Status: Production 24 ld LFCSP (4x4mm w/2.30mm EP) 24 Ind Reel, 250 $6.54 $6.54 Y  Material Info PCN Purchase
ADA4932-2YCPZ-R7 Status: Production 24 ld LFCSP (4x4mm w/2.30mm EP) 24 Ind Reel, 1500 - $5.29 Y  Material Info PCN Purchase Sample
ADA4932-2YCPZ-RL Status: Production 24 ld LFCSP (4x4mm w/2.30mm EP) 24 Ind Reel, 5000 - $5.29 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADA4932-2 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4932-2YCP-EBZ Status: Production 24-Lead LFCSP Bare Evaluation Board $18.25 Yes -
ADA4932-2YCPZ-R7 Status: Production 24-Lead LFCSP - Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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