Features and Benefits

  • Flexible Configuration
    Differential Input and Output Driver or Two Single-Ended Drivers
  • Industrial Temperature Range
  • Low Distortion
    -66 dB @ 1 MHz THD, RL =
    200 Ω, VOUT = 40 V p-p
    0.05% and 0.45° Differential Gain and
    Phase, RL = 25 Ω (6 Back-Terminated
    Video Loads)
  • High Output Power
    Thermally Enhanced SOIC
    400 mA Minimum Output Drive/Amp,
    RL = 10 Ω
  • High Speed
    120 MHz Bandwidth (-3 dB)
    900 V/µs Differential Slew Rate
    70 ns Settling Time to 0.1%
  • Thermal Shutdown

Product Details

The AD815 consists of two high speed amplifiers capable of supplying a minimum of 500 mA. They are typically configured as a differential driver enabling an output signal of 40 V p-p on ±15 V supplies. This can be increased further with the use of a coupling transformer with a greater than 1:1 turns ratio. The low harmonic distortion of −66 dB @ 1 MHz into 200 Ω combined with the wide bandwidth and high current drive make the differential driver ideal for communication applications such as subscriber line interfaces for ADSL, HDSL and VDSL.

The AD815 differential slew rate of 900 V/µs and high load drive are suitable for fast dynamic control of coils or transformers, and the video performance of 0.05% and 0.45° differential gain and phase into a load of 25 Ω enable up to 12 back-terminated loads to be driven.

The AD815 is available in a 24-pin SOIC (RB) and is rated over the industrial temperature range (-40°C to +85°C).

The 24-lead SOIC (RB) is capable of driving 26 dBm for full rate ADSL with proper heat sinking.

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

SPICE Models

Design Tools

ADIsimPE Linear and Mixed-Signal Circuit Simulator – Personal Edition

ADIsimPE, which is powered by SIMetrix/SIMPLIS, is a circuit simulation suite optimized for the design and development of analog and mixed signal circuits. SIMetrix mode is ideal for the simulation of general non-switching circuits. It provides full Pspice compatibility for use with industry-standard SPICE models. SIMPLIS (SIMulation Piecewise-Linear System) mode simulates the operation of switching circuits with vastly improved robustness, speed, and accuracy compared to standard SPICE. It is particularly useful for switching power supply, PLLs, and ADC/DAC applications.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.


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