ADA4870 High Speed, High Voltage, 1 A Output Drive Amplifier

The ADA4870 is a unity gain stable, high speed current feedback amplifier capable of delivering 1 A of output current and 2500 V/μs slew rate from a 40 V supply. Manufactured using the Analog Devices, Inc., proprietary high voltage extra fast complementary bipolar (XFCB) process, the innovative architecture of the ADA4870 enables high output power, high speed signal processing solutions in applications that require driving a low impedance load.

The ADA4870 is ideal for driving high voltage power FETs, piezo transducers, PIN diodes, CCD panels, and a variety of other demanding applications that require high speed from high supply voltage at high output current.

The ADA4870 is available in a power SOIC package (PSOP_3), featuring an exposed thermal slug that provides high thermal conductivity, enabling efficient heat transfer for improved perfor-mance and reliability in demanding applications. The ADA4870 operates over the industrial temperature range (−40°C to +85°C).

Applications
  • Envelope tracking
  • Power FET driver
  • Ultrasound
  • Piezo drivers
  • PIN diode drivers
  • Waveform generation
  • Automated test equipment (ATE)
  • CCD panel drivers
  • Composite amplifiers
Features and Benefits
  • Ideal for driving high capacitive or low resistive loads
  • Wide supply range: 10 V to 40 V
  • High output current drive: 1A
  • Wide output voltage swing: 37 V swing with 40 V supply
  • High slew rate: 2500 V/μs
  • High bandwidth: 52 MHz large signal, 70 MHz small signal
  • Low noise: 2.1 nV/√Hz
  • Quiescent current: 32.5 mA
    - Power down: 0.75 mA
  • Short-circuit protection and flag
    - Current limit: 1.2 A
  • Thermal protection
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    ADA4870: High Speed, High Voltage, 1A Output Drive Amplifier Data Sheet (Rev. 0)PDF 252 kB
    ADA4870-KGD: Known Good Die Data Sheet (Rev. 0)PDF 218.76 K
    User Guides
    Documentnote
    UG-685: Evaluating the ADA4870 High Speed, High Output Current Amplifier (Rev. A)PDF 277.88 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADA4870-KGD-DF ProductionCHIPS OR DIEOTH 1000-40 to 85C00Y
    ADA4870-KGD-WP ProductionCHIPS OR DIEREEL 132-40 to 85C026Y
    ADA4870ARRZ ProductionPSOP3 430 MIL W/ HEATSINKOTH 29-40 to 85C9.958.5Y
    ADA4870ARRZ-RL ProductionPSOP3 430 MIL W/ HEATSINKREEL 750-40 to 85C08.5Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    ADA4870ARR-EBZEvaluation Board for 20 lead RR-PSOP3 90Y
    ADA4870:高速、高压、1 A输出驱动放大器 (Rev. 0) ada4870
    ADA4870: High Speed, High Voltage, 1A Output Drive Amplifier Data Sheet (Rev. 0) ada4870
    ADA4870-KGD: Known Good Die Data Sheet (Rev. 0) ada4870
    ADA4870 SPICE Macro Model ada4870
    UG-685: Evaluating the ADA4870 High Speed, High Output Current Amplifier (Rev. A) ada4870