Amplifiers > D86

D86 Series

-12 dB to +60 dB

Pin-out and package data

Ordering Information

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D86 Series
Differential Input
Buffer Amplifier





The D86 Series are differential input, single-ended output buffer amplifiers for conditioning DC-coupled wide-band signals. (AC coupled-optional). Components are selected and configured to provide full signal bandwidth to 100 kHz in all models.

These amplifiers are particularly useful to scale sensor outputs to signal levels that optimize signal-to-noise ratios prior to their input to FDI active filter modules. Available in 13 fixed gain models from -12 dB to +60 dB with options that include AC coupled input and/or differential output


  • Full power bandwidth to 100 kHz for wide dynamic range applications
  • Compact 1.8” x 0.8” x 0.3” (32 pin DIP) size minimizes board space requirements
  • Plug-in ready-to-use, reducing engineering design and manufacturing time.


  • Data acquisition
  • Test equipment
  • Remote instrumentation systems
  • Ground loop elimination in remote measurements
  • Improvements in system dynamic range and resolution
  • Telemetry
  • Process control
  • Medical, Scientific & engineering research


(@ 25°C and Vs ±15 Vdc)

Analog Input Characteristics (1)
  • Configuration: DC coupled, differential Input
  • AC Coupled (Optional): Fixed @ 10Hz
  • Impedance: 1 M ohm || 22pF
  • Bias Current: 20 pA max.
  • Offset Current: 10 pA max.
  • Voltage Range: ±10 Vpeak
  • Max. Safe Voltage: ±Vs
  • Common Mode Rejection Ratio:
    Typ. 80 dB @ 1 kHz
    Min. 60 dB @ 1 kHz
  • Noise Voltage Density, RTI:
    20nV/sq.rt.Hz @ 1 kHz, G=1,024

Analog Output Characteristics

  • Configuration: Single ended, DC coupled
  • Differential Output: (Optional)
  • Impedance:
    <1 ohm typ., 10 ohm max.
  • Current (linear operation):
    ±5 mA max.
  • Offset Voltage:
    2 mV RTI, NTE 40 mV max.
  • Offset Temp. Coeff.:
    ±(5 + 100/G) µV/°C
General Analog Characteristics
  • Gain (Selectable): 0.25X to 1,024X in factors of 2
  • Gain Tolerance: ±0.10 dB
  • Distortion (0 dB gain @ 3.5 Vrms):
    -86 dB @ 1 kHz typ.
  • Full Power Bandwidth (0 dB gain): 100 kHz

Power Supply (±Vs)

  • Rated Voltage: ± 15 Vdc
  • Operating Range: ± 5 to ± 18 Vdc
  • Maximum Safe Voltage: ± 18 Vdc
  • Quiescent Current ±15V: ± 12 mA


  • Operating: 0 to + 70°C
  • Storage: -25 to+85°C


Pin-Out and Package Data

Ordering Information

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Frequency Devices, Inc.
Your engineering partner for signal conditioning
  927 Fosse Rd
Ottawa, IL 61350



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