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 ...More


ADA4857-1 and ADA4857-2 win the "2008 Best in Electronic Design" award from Electronic Design.

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

Features

  • 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)

Diagrams

ADA4857-1 Diagram
Functional Block Diagram for ADA4857-1

Specifications

-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

Explore Other Products

Part# Small Signal Bandwidth Slew Rate Vos Ib V Noise Density Amplifiers Per Package Widest Temp Range (°C)
ADA4857-1 850MHz 2.8KV/µs 2mV 2µA 4.4nV/rtHz 1 -40 to +125
ADA4857-2 750MHz 2.8KV/µs 2mV 2µA 4.4nV/rtHz 2 -40 to +125
AD8000 1.58GHz 4.1KV/µs 1mV 5µA 1.6nV/rtHz 1 -40 to +125
AD8045 1GHz 1.35KV/µs 200µV 2µA 3nV/rtHz 1 -40 to +125
ADA4899-1 600MHz 310V/µs 35µV 100nA 1nV/rtHz 1 -40 to +125
AD8655 28MHz 11V/µs 50µV 10pA 4nV/rtHz 1 -40 to +125
AD8671 10MHz 4V/µs 20µV 3nA 2.8nV/rtHz 1 -40 to +125
AD8675 10MHz 2.5V/µs 10µV 500pA 2.8nV/rtHz 1 -40 to +125
OP184 4.25MHz 4V/µs 175µV 80nA 3.9nV/rtHz 1 -40 to +125
AD8009 1GHz 5.5KV/µs 2mV 50µA 1.9nV/rtHz 1 -40 to +85
AD811 140MHz 2.5KV/µs 500µV 2µA 1.9nV/rtHz 1 -55 to +125
Pricing, Packaging & Availability

Help

Model
The model number is a specific version of a generic that can be purchased or sampled.

Status
Status indicates the current lifecycle of the product. This can be one of 4 stages:
  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
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.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

*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.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

View Sales and Distribution Offices