The IVY III Balanced Linestage








Highlights
  • Functions as either an I/V stage for current-output DACs or linestage for voltage-output DACs
  • Fully balanced, symmetric operation for ultra-low noise floor
  • Precision components in differential analog filter stages (2.5% capacitors, 0.1% resistors)
  • Customizable input impedance to match the application
  • Balanced and single-ended outputs can be used simultaneously
  • Ballsie stage is optional and can be left out or simply not powered if not needed
  • Gain of single-ended outputs can be set independently of balanced outputs to match your application
  • Designed specifically for our line of DACs
  • All connections by direct or optional (included) terminal blocks

  • IVY-III is a balanced active I/V line stage with optional filtering and both balanced and single-ended outputs. I/V conversion is performed by a pair of Burr-Brown fully-differantial OPA1632 op-amps, and balanced to single-ended conversion by a National Semiconductor LM4562/LME49720. All op-amps are surface mount (SOIC) and come pre-installed (unless you note otherwise).

    Wima FKP2 polypropylene (MKP) filter capacitors provide low pass filtering in the I/V stage. Each stage has local Nichicon 100uF KW and Wima 0.1uF MKP2 polypropylene decoupling and bypass capacitors.

    IVY-III requires between one (and up to three) ±12-15VDC (bipolar) power supplies. Both our linear LCBPS and shunt-regulated Placid HD BP will work very well. We recommend the Placid HD BP set for ±15VDC for best performance, powered by a 15V+15V transformer (available here).



    Ordering Options
    Individual Kits
    IVY-III Complete Kit $89.00 USD
    Kit Combinations
    IVY-III Kit + One Placid HD BP Kit Combo
  • [1] IVY-III Kit
  • [1] Placid HD BP Power Supply Kit
  • $169.00 USD Out of stock
    PCBs
    IVY-III PCB with Pre-Installed OpAmps
  • [1] IVY-III PCB
  • [4] OPA1632 OpAmps (SOIC) Installed
  • [1] LM4562 OpAmp (SOIC) Installed
  • $50.00 USD
    IVY-III PCB $21.50 USD