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ADA4857-1:  Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp

The ADA4857 is a unity gain stable, high speed, voltage feedback amplifier with low distortion, low noise, and high slew rate. With a spurious-free dynamic range (SFDR) of −88 dBc @ 10 MHz, the ADA4857 is an ideal solution for a variety of applications including ultrasounds, ATE, active filters, and ADC drivers. The Analog Devices, Inc., proprietary next-generation XFCB process and innovative ...More

ADA4857-1:  Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp

Product Description

The ADA4857 is a unity gain stable, high speed, voltage feedback amplifier with low distortion, low noise, and high slew rate. With a spurious-free dynamic range (SFDR) of −88 dBc @ 10 MHz, the ADA4857 is an ideal solution for a variety of applications including ultrasounds, ATE, active filters, and ADC drivers. The Analog Devices, Inc., proprietary next-generation XFCB process and innovative architecture enables such high performance amplifiers.

The ADA4857 has 850 MHz bandwidth, 2800 V/μs slew rate, and settles to 0.1% in 15 ns. With a wide supply voltage range (5 V to 10 V), the ADA4857 is an ideal candidate for systems that require high dynamic range, precision, and speed.

The ADA4857-1 amplifier is available in a 3 mm × 3 mm, 8-lead LFCSP and a standard 8-lead SOIC. The ADA4857-2 is available in a 4 mm × 4 mm, 16-lead LFSCP. The LFCSP features an exposed paddle that provides a low thermal resistance path to the printed circuit board (PCB). This path enables more efficient heat transfer and increases reliability. The ADA4857 works over the extended industrial temperature range (−40°C to +125°C).

Applications

  • Instrumentation
  • IF and baseband amplifiers
  • Active filters
  • ADC drivers
  • DAC buffers
  • High speed
    850 MHz, -3 dB bandwidth (G = +1, RL = 1kΩ), LFSCP)
    750 MHz, −3 dB bandwidth (G = +1, RL = 1 kΩ, SOIC)
    2800 V/µs slew rate
  • Low distortion:
    -88 dBc @ 10 MHz (G = +1, RL = 1kΩ)
  • Low power: 5 mA/amplifier @ 10 V
  • Low noise: 4.4 nV/√Hz
  • Wide supply voltage range: 5 V to 10 V
  • Power-down feature
  • Available in 3 mm × 3 mm 8-lead LFCSP (single), 8-lead SOIC (single), and 4 mm × 4 mm 16-lead LFCSP (dual)
  • -3dB Bandwidth: 850MHz
  • Slew Rate: 2.8kV/µs
  • Vos: 2mV
  • Ib: 2µA
  • Input Noise (nV/rtHz): 4.4nV/rtHz
  • Vcc-Vee Supply (V): 4.5 to 10
  • Iq per Amplifier: 5.5mA
  • # OpAmps per Pkg: 1
  • Operating Temp Range: -40 to +125
  • Packages: CSP,SOIC

Functional Block Diagram for ADA4857-1

Of Note ...