40Vp-p PCIBus Signal Amplifier

Model 3322 is a 3U single-slot, PCI-based power amplifier designed for signal amplification. Offering unmatched signal purity, Model 3322 amplifies signals from dc to over 20 MHz. The unit has a fixed gain of x10, however, the same amplifier is available with custom gain, with no signal purity or performance degradation.

Relevant Documents
Data Sheet(211 KB)
  • Single-width PXI card
  • Wideband range to 20 MHz
  • Low distortion
  • High amplitude to 40Vp-p (into high impedance)
  • Custom Configuration of: Gain, Input Impedance, Output Impedance, Output Polarity, Signal Ground

Solves Common Problems

A common problem with PXI equipment is the inability to produce high voltages resulting from low power supply rails. For example, waveform generators or similar signal source devices draw power from 12V rails. Consequently, they cannot produce signals above 10Vp-p into 50?. Model 3222 solves this problem by using DC/DC converters to increase rail voltages which, along with custom components and unique design, enable amplification of input signals to 40Vp-p into high impedance, or 20Vp-p into 50?.

Allows Full Current Rating to Other Devices

The power amplifier draws current only from the +5V rail, leaving the other power supply rails free to supply their full current rating to other devices.

Ground Level

Model 3322 can be supplied with input and output connectors that are isolated from case ground allowing the amplifier to float from case ground level up to 250VDC. The only limitation is that both the input and output grounds must connect to the same ground level. This capability is extremely important in applications where the amplifying device must reside on the same ground level as its source. The floating capability can be added or removed using a simple, user-accessible jumper connection.

Target Applications

Although the model 3222 wideband amplifier occupies a single slot, its performance is unique and outstanding by any standards. With 40Vp-p and over 20MHz bandwidth one can use model 3222 for virtually any application. A common application is in the automotive industry where signals need to be in the 12V to 28V range. Another application would be in the aviation industry where even higher levels are required to route signals throughout the aircraft body.

Cost Effective Solution

Model 3222 is a cost-effective, versatile power amplifier that opens the door to numerous applications, specifically implemented with PXI equipment.


Model Description
3322-10-50-50-I-G(1) 40Vp-p PCIBus Signal Amplifier



Name Description
Gain 10 = x10, 1 through 10, fixed(2)
Input Impedance 50 = 50Ω, 1M=1MΩ(3)
Output Impedance 50 = 50Ω, 75=75Ω or 600=600Ω
Polarity I = Inverted, N = Normal
Signal Ground G = Tied to ground, F = Floated



Name Description
S-Rack mount 19" Single Rack Mounting Kit
D-Rack mount 19" Dual Rack Mounting Kit
Case Kit Professional Carry Bag


(1) Standard configuration.

(2) Custom gain from x10 to x20 can be ordered however, bandwidth cannot be maintained. Consult the factory before ordering gain above 15. 

(3) 1MΩ is option available with none inverting (N) output polarity only.

Note: Options and Accessories must be specified at the time of your purchase.

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