ADA4932-1 Low Power Differential ADC Driver

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 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.

Applications

Features and Benefits
  • 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
  • −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
  • 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
  • See data sheet for additional features
  • Amplifiers
    Aerospace and Defense
    • Solutions
    SPICE Models
    Data Sheets
    Documentnote
    ADA4932-1/ADA4932-2: Low Power Differential ADC Driver Data Sheet (Rev. E)PDF 746.44 K
    Application Notes
    Documentnote
    AN-1363: Meeting Biasing Requirements of Externally Biased RF/Microwave Amplifiers with Active Bias Controllers (Rev. 0)PDF 804.11 K
    AN-282: Fundamentals of Sampled Data SystemsPDF 2131 kB
    AN-0992: Active Filter Evaluation Board for Differential Amplifiers (Rev. 0)PDF 85 kB
    AN-1026: High Speed Differential ADC Driver Design Considerations (Rev. A)PDF 355 kB
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    User Guides
    Documentnote
    UG-889: Evaluation Board for Single Differential Amplifiers Offered in 16-Lead LFCSP Packages (Rev. A)PDF 200.15 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADA4932-1YCPZ-R2 Production16 ld LFCSP (3x3mm, 1.3mm exposed pad)REEL 250-40 to 105C3.673.67Y
    ADA4932-1YCPZ-R7 Production16 ld LFCSP (3x3mm, 1.3mm exposed pad)REEL 1500-40 to 105C02.95Y
    ADA4932-1YCPZ-RL Production16 ld LFCSP (3x3mm, 1.3mm exposed pad)REEL 5000-40 to 105C02.95Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-FDA-1CPZ-16Evaluation Bare Board for 16 Lead LFCSP18.25Y
    EVAL-FDA-1RMZ-8Evaluation Bare Board for 8 Lead MSOP18.25Y
    EVAL-FDA-1RZ-8Evaluation Bare Board for 8 Lead SOIC18.25Y
    FDA-FILTER-CPZEvaluation Board Filter for LFCSP18.25Y
    Reference Materials
    ADA4932-1/ADA4932-2:低功耗差分ADC 驱动器 数据手册 (Rev. B) ada4932-1
    ADA4932-1/ADA4932-2: Low Power Differential ADC Driver Data Sheet (Rev. E) ada4932-1
    ADA4932 SPICE Macro Model ada4932-1
    AN-1363: 利用有源偏置控制器满足外部偏置射频/微波放大器的偏置要求 (Rev. 0) hmc8120
    AN-1363: Meeting Biasing Requirements of Externally Biased RF/Microwave Amplifiers with Active Bias Controllers (Rev. 0) hmc8120
    AN-282: Fundamentals of Sampled Data Systems ad1674
    AN-0992: Active Filter Evaluation Board for Differential Amplifiers (Rev. 0) ad8138
    AN-1026: High Speed Differential ADC Driver Design Considerations (Rev. A) ad8351
    AN-1026: 高速差分ADC驱动器设计考虑[中文版] (Rev. 0) ad8351
    AN-0992: 用于差分放大器的有源滤波器评估板 (Rev. 0) ad8138
    AN-282: 采样数据系统基本原理[中文版] (Rev. A) ad75019
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
    UG-889: Evaluation Board for Single Differential Amplifiers Offered in 16-Lead LFCSP Packages (Rev. A) ada4937-1
    MT-218: 多反馈带通滤波器设计示例 ad8138
    MT-076:差分驱动器分析 ad8138
    MT-075: Differential Drivers for High Speed ADCs Overview ad6672
    SAR ADC & Driver Quick-Match Guide ad7476
    CN-0105: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit,... ad7626
    Designing 1-ppm DAC Accuracy into Instrumentation Applications - Part 2 ada4937-1
    Designing 1-ppm DAC Accuracy into Instrumentation Applications - Part 1 ada4937-1