DatasheetsPDF.com

ADA4932-2 Dataheets PDF



Part Number ADA4932-2
Manufacturers Analog Devices
Logo Analog Devices
Description Low Power Differential ADC Driver
Datasheet ADA4932-2 DatasheetADA4932-2 Datasheet (PDF)

Data Sheet ADA4932-1/ADA4932-2 Low Power, Differential ADC Driver FEATURES ► 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 at 10 MHz ► 90 dB SFDR at 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 le.

  ADA4932-2   ADA4932-2


Document
Data Sheet ADA4932-1/ADA4932-2 Low Power, Differential ADC Driver FEATURES ► 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 at 10 MHz ► 90 dB SFDR at 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 ► Input common-mode range shifted down by 1 VBE ► Wide supply range: +3 V to ±5 V ► Available in 16-lead and 24-lead LFCSP packages APPLICATIONS ► ADC drivers ► Single-ended-to-differential converters ► IF and baseband gain blocks ► Differential buffers ► Line drivers GENERAL DESCRIPTION The ADA4932-1/ADA4932-2 are the next generation AD8132 with higher performance and lower noise and power consumption. They are 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 ADA4932-1/ ADA4932-2 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 ADA4932-1/ADA4932-2, differential gain configurations are easily realized with a simple external four-resistor feedback network that determines the closed-loop gain of the amplifier. The ADA4932-1/ADA4932-2 were fabricated using the Analog Devices, Inc., proprietary silicon-germanium (SiGe) complementary FUNCTIONAL BLOCK DIAGRAM Figure 1. ADA4932-1 Figure 2. ADA4932-2 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 ADA4932-1/ADA4932-2 make them 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 pinouts are optimized to facilitate the printed circuit board (PCB) layout and minimize distortion. The ADA4932-1/ADA4932-2 are specified to operate over the −40°C to +105°C temperature range; both operate on supplies between +3 V and ±5 V. Rev. F DOCUMENT FEEDBACK TECHNICAL SUPPORT Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Data Sheet TABLE OF CONTENTS Features................................................................ 1 Applications........................................................... 1 Functional Block Diagram......................................1 General Description...............................................1 Specifications........................................................ 3 ±5 V Operation .................................................. 3 5 V Operation .................................................... 5 Absolute Maximum Ratings...................................7 Thermal Resistance........................................... 7 Maximum Power Dissipation.............................. 7 ESD Caution.......................................................7 Pin Configurations and Function Descriptions.......8 Typical Performance Characteristics..................... 9 Test Circuits......................................................... 17 Terminology......................................................... 18 Theory of Operation.............................................19 ADA4932-1/ADA4932-2 Applications Information...................................... 20 Analyzing an Application Circuit....................... 20 Setting the Closed-Loop Gain.......................... 20 Estimating the Output Noise Voltage ...............20 Impact of Mismatches in the Feedback Networks........................................................ 21 Calculating the Input Impedance for an Application Circuit...........................................21 Input Common-Mode Voltage Range .............. 23 Input and Output Capacitive AC Coupling........23 Setting the Output Common-Mode Voltage .....23 High Performance Precision ADC Driver......... 23 High Performance ADC Driving...........................25 Layout, Grounding, and Bypassing..................... 26 Outline Dimensions.....................................


ADA4932-1 ADA4932-2 ADA4939-1


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)