Voltage Amplifiers

 

AMI Voltage AmplifierAnalog Modules, Inc. (AMI) designs and manufactures a range of voltage amplifiers for OEM, medical and research applications. AMI’s amplifiers combine low noise, high gain, large dynamic range, and small package size.

The 321A Series are ultra low noise voltage amplifiers designed for instrument and transducer applications in which high gain and low noise are required. Both low and high input impedances are available.

The 322 Series are high gain, low noise bipolar voltage amplifiers designed to be used with instruments and transducers with low source impedances. Other models are available with bias supplies suitable for MCT detectors (-MCT option, consult factory for price and availability.

The 351A Series are low noise voltage amplifiers designed for instrument and transducer applications in which low drift and low noise are required. Both low and high input impedances are available.

The Model 353A is a low noise voltage amplifier designed for instrument and transducer applications in which high bandwidth and low noise are required.
Data Sheets (PDF Format) are available for models listed below.

ModelBandwidth
(Small Signal)
GainInput Noise
(V/Root Hz)
Output SwingInput Z
(Ohms)
Features
321A-1200Hz to 1MHz20 to 40dB2.5nV±6V50 or 4.7kTrimpot adjustable gain
321A-2200Hz to 6.5MHz40 to 60dB1.7nV±6V50 or 4.7kTrimpot adjustable gain
321A-3200Hz to 3.5MHz60 to 80dB1nV±6V50 or 4.7kTrimpot adjustable gain
322-10200Hz to 60MHz40dB280pV±2.5V50 or 100Lowest voltage noise from a low impedance source
322-11200Hz to 10MHz60dB280pV±2.5V50 or 100Lowest voltage noise from a low impedance source
322-12200Hz to 45MHz60dB280pV±2.5V50 or 100Lowest voltage noise from a low impedance source
322-4200Hz to 10MHz40dB380pV±2.5V50 or 200Lowest voltage noise from a low impedance source
322-5200Hz to 60MHz40dB380pV±2.5V50 or 200Lowest voltage noise from a low impedance source
322-6200Hz to 100MHz40dB380pV±2.5V50 or 200Lowest voltage noise from a low impedance source
322-7200Hz to 10MHz60dB350pV±2.5V50 or 200Lowest voltage noise from a low impedance source
322-8200Hz to 45MHz60dB350pV±2.5V50 or 200Lowest voltage noise from a low impedance source
322-9200Hz to 10MHz40dB280pV±2.5V50 or 100Lowest voltage noise from a low impedance source
351A-1DC to 12MHz20 to 40dB2.5nV±6V50 or 4.7kPrecision variable gain; offset adjust
351A-2DC to 12MHz40 to 60dB1.7nV±6V50 or 4.7kPrecision variable gain; offset adjust
351A-3DC to 12MHz60 to 80dB1nV±6V50 or 4.7kPrecision variable gain; offset adjust
353A-1DC to 12MHz30dB2nV±1.5V50Highest bandwidth

Specifications are subject to change without notice.

All specifications valid for 50 ohm load.
Tolerance on noise and bandwidth is ±20%.

Application Notes available on selected models.

 

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